%ISMN
@article{dorigo2021international,
  title={The International Soil Moisture Network: serving Earth system science for over a decade},
  author={Dorigo, Wouter and Himmelbauer, Irene and Aberer, Daniel and Schremmer, Lukas and Petrakovic, Ivana and Zappa, Luca and Preimesberger, Wolfgang and Xaver, Angelika and Annor, Frank and Ard{\"o}, Jonas and others},
  journal={Hydrology and earth system sciences},
  volume={25},
  number={11},
  pages={5749--5804},
  year={2021},
  publisher={Copernicus GmbH}
}

%ISMN
@article{Dorigo2013,
    author = {Dorigo, Wouter and Xaver, Angelika and Vreugdenhil, Mariette and Gruber, Alexander and Dost{\'a}lov{\'a}, Alena and Sanchis-Dufau, Antonio Daniel and Zamojski, Daniel and Cordes, Clara and Wagner, Wolfgang and Drusch, Matthias},
    title = {Global Automated Quality Control of In Situ Soil Moisture Data from the International Soil Moisture Network},
    journal = {Vadose Zone Journal},
    year = {2013},
    volume = {12},
    number = {3},
    pages = {vzj2012.0097},
    doi = {10.2136/vzj2012.0097}
}

%network: AACES
@article{The2012,
  author = {Peischl, S. and Walker, Jeffrey and Rüdiger, Christoph and Ye, N. and Kerr, Yann and Kim, E. and Bandara, Ranmalee and Allahmoradi, M.},
  title = {The AACES field experiments: SMOS calibration and validation across the Murrumbidgee River catchment},
  journal = {Hydrology and Earth System Sciences Discussions},
  year = {2012},
  month = {3},
  volume = {9},
  pages = {2763-2795},
  doi = {10.5194/hessd-9-2763-2012}
}

%network: AMMA-CATCH
@article{Hydrological2009,
  author = {Pellarin, Thierry and Laurent, Jean-Paul and Cappelaere, Bernard and Decharme, B. and Descroix, Luc and Ramier, David},
  title = {Hydrological modelling and associated microwave emission of a semi-arid region in South-western Niger},
  journal = {Journal of Hydrology},
  year = {2009},
  month = {8},
  volume = {375},
  pages = {262-272},
  doi = {10.1016/j.jhydrol.2008.12.003}
}

%network: AMMA-CATCH
@article{The2009,
  author = {Mougin, Eric and Hiernaux, Pierre and Kergoat, Laurent and Manuela, Grippa and Rosnay, Patricia and Timouk, Franck and Le Dantec, Valerie and Demarez, Valérie and Lavenu, François and Arjounin, Marc and Lebel, T. and Soumaguel, Nogmana and Ceschia, Eric and Mougenot, Bernard and Baup, F. and Frappart, Frédéric and Frison, Pierre-Louis and Gardelle, J. and Gruhier, Claire and Mazzega, Pierre},
  title = {The AMMA-CATCH Gourma observatory site in Mali: Relating climatic variations to changes in vegetation, surface hydrology, fluxes and natural resources},
  journal = {Journal of Hydrology},
  year = {2009},
  month = {8},
  volume = {375},
  doi = {10.1016/j.jhydrol.2009.06.045}
}

%network: AMMA-CATCH
@article{The2009,
  author = {Cappelaere, Bernard and Descroix, Luc and Lebel, T. and Boulain, Nicolas and Ramier, David and Laurent, Jean-Paul and Favreau, Guillaume and Boubkraoui, S. and Boucher, Marie and Moussa, Ibrahim and Chaffard, Véronique and Hiernaux, Pierre and Issoufou, Hassane Bil-Assanou and Breton, E. and Mamadou, I. and Nazoumou, Yahaya and Oi, Monique and Ottle, Catherine and Quantin, Guillaume},
  title = {The AMMA-CATCH experiment in the cultivated Sahelian area of south-west Niger – Investigating water cycle response to a fluctuating climate and changing environment},
  journal = {Journal of Hydrology},
  year = {2009},
  month = {8},
  volume = {375},
  pages = {34-51},
  doi = {10.1016/j.jhydrol.2009.06.021}
}

%network: AMMA-CATCH
@article{Multiscale2009,
  author = {Rosnay, Patricia and Gruhier, Claire and Timouk, Franck and Baup, F. and Mougin, Eric and Hiernaux, Pierre and Kergoat, Laurent and LeDantec, V.},
  title = {Multi-scale soil moisture measurements at the Gourma meso-scale site in Mali},
  journal = {Journal of Hydrology},
  year = {2009},
  month = {8},
  volume = {375},
  pages = {241-252},
  doi = {10.1016/j.jhydrol.2009.01.015}
}

%network: AMMA-CATCH
@article{AMMACATCH2009,
  author = {Lebel, T. and Cappelaere, Bernard and Galle, Sylvie and Hanan, Niall and Kergoat, Laurent and Levis, Samuel and Vieux, Baxter and Descroix, Luc and Gosset, M. and Mougin, Eric and Peugeot, Christophe and Seguis, Luc},
  title = {AMMA-CATCH studies in the Sahelian region of West-Africa : an overview},
  journal = {Journal of Hydrology},
  year = {2009},
  month = {8},
  volume = {375},
  pages = {2025-03-13 00:00:00},
  doi = {10.1016/j.jhydrol.2009.03.020}
}

%network: ARM
@report{Soil2016,
  author = {Cook, D. R. },
  title = {Soil temperature and moisture profile (stamp) system handbook, Technical report, DOE Office of Science Atmospheric Radiation Measurement (ARM) Program},
  year = {2016},
  url = {https://www.osti.gov/biblio/1332724}
}

%network: ARM
@report{Soil2016,
  author = {Cook, D. R.},
  title = {Soil water and temperature system (swats) instrument handbook, Technical report, DOE Office of Science Atmospheric Radiation Measurement (ARM) Program},
  year = {2016},
  url = {https://www.osti.gov/biblio/1004944}
}

%network: ARM
@report{Surface2018,
  author = {Cook, D. R. & Sullivan, R. C.},
  title = {Surface energy balance system (sebs) instrument handbook, Technical report, DOE Office of Science Atmospheric Radiation Measurement (ARM) Program},
  year = {2018},
  url = {https://www.arm.gov/publications/tech_reports/handbooks/sebs_handbook.pdf}
}

%network: AWDN
We acknowledge the work of Natalie Umphlett and the AWDN team in support of the ISMN.

%network: BIEBRZA_S-1
@article{Derivation2016,
  author = {Musial, J. P., Dabrowska-Zielinska, K., Kiryla, W., Oleszczuk, R., Gnatowski, T. & Jaszczynski, J. },
  title = {Derivation and validation of the high resolution satellite soil moisture products: a case study of the biebrza sentinel-1 validation sites},
  journal = {Geoinformation },
  year = {2016},
  volume = {8},
  number = {1},
  pages = {37-53},
  doi = {https://doi.org/10.34867/gi.2016.4}
}

%network: BNZ-LTER
@webpage{Bonanza2015,
  author = {Van Cleve, Keith, Chapin, F.S. Stuart, Ruess, Roger W.},
  title = {Bonanza Creek Long Term Ecological Research Project Climate Database - University of Alaska Fairbanks},
  year = {2015},
  url = {https://www.lter.uaf.edu/}
}

%network: Berlin
We acknowledge the work of Martin Schreiner and the Berlin network team in support of the ISMN.

%network: BFG_Nw
We acknowledge the work of Jens Wilhelmi of the German Federal Institute of Hydrology in support of the ISMN.

%network: CALABRIA
@article{Soil2011,
  author = {Brocca, L., Hasenauer, S., Lacava, T., Melone, F., Moramarco, T., Wagner, W., A, D., Matgen, P., Mart´ınez-Fern´andez, J., Llorens, P., Latron, J., Martin, C. & Bittelli, M. },
  title = {Soil moisture estimation through ascat and amsr-e sensors: An intercomparison and validation study across europe},
  journal = {Remote Sensing of Environment},
  year = {2011},
  volume = {115},
  pages = {3390-3408},
  doi = {https://doi.org/10.1016/j.rse.2011.08.003}
}

%network: CAMPANIA
@article{Soil2011,
  author = {Brocca, L., Hasenauer, S., Lacava, T., Melone, F., Moramarco, T., Wagner, W., A, D., Matgen, P., Mart´ınez-Fern´andez, J., Llorens, P., Latron, J., Martin, C. & Bittelli, M. },
  title = {Soil moisture estimation through ascat and amsr-e sensors: An intercomparison and validation study across europe},
  journal = {Remote Sensing of Environment},
  year = {2011},
  volume = {115},
  pages = {3390-3408},
  doi = {https://doi.org/10.1016/j.rse.2011.08.003}
}

%network: CHINA
@article{Spatial2001,
  author = {Liu, Suxia and Mo, Xingguo and Li, Haibin and Peng, Gongbing and Robock, Alan},
  title = {Spatial Variation of Soil Moisture in China: Geostatistical Characterization},
  journal = {Journal of The Meteorological Society of Japan - J METEOROL SOC JPN},
  year = {2001},
  month = {3},
  volume = {79},
  pages = {555-574},
  doi = {10.2151/jmsj.79.555}
}

%network: CHINA, IOWA, MONGOLIA, RUSWET-AGRO, RUSWET-GRASS, RUSWET-VALDAI
@article{The2000,
  author = {Robock, Alan and Vinnikov, Konstantin and Srinivasan, Govindarajalu and Entin, Jared and Hollinger, Steven and Speranskaya, Nina and Liu, Suxia and Namkhai, A.},
  title = {The Global Soil Moisture Data Bank},
  journal = {Bulletin of the American Meteorological Society},
  year = {2000},
  month = {6},
  volume = {81},
  doi = {10.1175/1520-0477(2000)081<1281:TGSMDB>2.3.CO;2}
}

%network: COSMOS
@article{Measuring2008,
  author = {Zreda, Marek and Desilets, Darin and Ferré, Ty and Scott, Russell},
  title = {Measuring soil moisture content non-invasively at intermediate spatial scale using cosmic-ray neutrons},
  journal = {Geophysical Research Letters},
  year = {2008},
  month = {11},
  volume = {35},
  doi = {10.1029/2008GL035655}
}

%network: COSMOS
@article{COSMOS2012,
  author = {Zreda, M. and Shuttleworth, W. J. and Zeng, X. and Zweck, C. and Desilets, D. and Franz, T. and Rosolem, R.},
  title = {COSMOS: the COsmic-ray Soil Moisture Observing System},
  journal = {Hydrology and Earth System Sciences},
  year = {2012},
  month = {-1},
  volume = {16},
  number = {11},
  pages = {4079--4099},
  doi = {10.5194/hess-16-4079-2012},
  url = {https://www.hydrol-earth-syst-sci.net/16/4079/2012/}
}

%network: CTP_SMTMN
@article{A2013,
  author = {Yang, Kun and Qin, Jun and Zhao, Long and Chen, Yingying and Tang, Wenjun and Han, Menglei and Zhu, la and Chen, Zhuoqi and Lv, Ning and Ding, Baohong and Wu, Hui and Lin, Changgui},
  title = {A Multi-Scale Soil Moisture and Freeze-Thaw Monitoring Network on the Third Pole},
  journal = {Bulletin of the American Meteorological Society},
  year = {2013},
  month = {12},
  volume = {94},
  pages = {1907-1916},
  doi = {10.1175/BAMS-D-12-00203.1}
}

%network: DAHRA
@article{Ecosystem2014,
  author = {Tagesson, Torbern and Fensholt, Rasmus and Guiro, Idrissa and Rasmussen, Mads and Huber, Silvia and Mbow, Cheikh and Garcia, Monica and Horion, Stéphanie and Sandholt, Inge and Holm-Rasmussen, Bo and Göttsche, Frank-M and Ridler, Marc and Boke-Olén, Niklas and Olsen, Jørgen and Ehammer, Andrea and Madsen, Mathias and Olesen, Folke and Ardö, Jonas},
  title = {Ecosystem properties of semi-arid savanna grassland in West Africa and its relationship to environmental variability},
  journal = {Global Change Biology},
  year = {2014},
  month = {9},
  volume = {21},
  doi = {10.1111/gcb.12734}
}

%network: DWD
We acknowledge the work of the DWD and its agrometeorological team for their contributions in support of the ISMN

%network: FMI
@article{Spatially2018,
  author = {Ikonen, J., Smolander, T., Rautiainen, K., Cohen, J., Lemmetyinen, J., Salminen, M. & Pulliainen, J. },
  title = {Spatially distributed evaluation of esa cci soil moisture products in a northern boreal forest environment},
  journal = {Geosciences },
  year = {2018},
  month = {-1},
  volume = {8},
  number = {2},
  pages = {51},
  doi = {https://doi.org/10.3390/geosciences8020051}
}

%network: FLUXNET-AMERIFLUX
We acknowledge the work of Dennis D. Baldocchi and the FLUXNET-AMERIFLUX team in support of the ISMN.

%network: FMI
@article{The2015,
  author = {Ikonen, J., Vehviläinen, J., Rautiainen, K., Smolander, T., Lemmetyinen, J., Bircher, S. & Pulliainen, J. },
  title = {The sodankylä in-situ soil moisture observation network: an example application to earth observation data product evaluation},
  journal = {Geoscientific Instrumentation, Methods and Data Sys.},
  year = {2015},
  month = {-1},
  volume = {5},
  number = {2},
  pages = {599-629},
  doi = {https://doi.org/10.5194/gi-5-95-2016}
}

%network: FR_Aqui
@article{The2018,
  author = {Al-Yaari, A., Dayau, S., Chipeaux, C., Aluome, C., Kruszewski, A., Loustau, D. & Wigneron, J.-P. },
  title = {The aqui soil moisture network for satellite microwave remote sensing validation in south-western france},
  journal = {Remote Sensing},
  year = {2018},
  volume = {10},
  number = {11},
  doi = {https://doi.org/10.3390/rs10111839}
}

%network: FR_Aqui
@article{The2018,
  author = {Wigneron, J.-P., Dayan, S., Kruszewski, A., Aluome, C., Al-Yaari, A., Fan, L., Guven, S., Chipeaux, C., Moisy, C., Guyon, D. & Loustau, D. },
  title = {The aqui network: Soil moisture sites in the “les landes” forest and graves vineyards (bordeaux aquitaine region, france)},
  journal = {IEEE International Geoscience and Remote Sensing Symposium},
  year = {2018},
  pages = {3739-3742},
  doi = {10.1109/IGARSS.2018.8517392.}
}

%network: GROW
@article{Evaluating2020,
  author = {Xaver, A., Zappa, L., Rab, G., Pfeil, I., Vreugdenhil, M., Hemment, D. & Dorigo, W. A. },
  title = {Evaluating the suitability of the consumer low-cost parrot flower power soil moisture sensor for scientific environmental applications},
  journal = {Geoscientific Instrumentation},
  year = {2020},
  volume = {9},
  number = {1},
  pages = {117-139},
  doi = {https://doi.org/10.5194/gi-9-117-2020}
}

%network: GROW
@inproceedings{Evaluation2020,
  author = {Zappa, L., Woods, M., Hemment, D., Xaver, A. & Dorigo, W. },
  title = {Evaluation of remotely sensed soil moisture products using crowdsourced measurements},
  journal = {Eighth International Conference on Remote Sensing and Geoinformation of Environment},
  year = {2020}
}

%network: GROW
@article{Deriving2019,
  author = {Zappa, L., Forkel, M., Xaver, A. & Dorigo, W. },
  title = {Deriving field scale soil moisture from satellite observations and ground measurements in a hilly agricultural region},
  journal = {Remote Sensing},
  year = {2019},
  volume = {11},
  number = {22},
  pages = {2596},
  doi = {https://doi.org/10.1117/12.2571913}
}

%network: GTK
We acknowledge the work of Raimo Sutinen and the GTK team in support of the ISMN.

%network: HiWATER_EHWSN
@article{Hybrid2014,
  author = {Kang, Jian and Li, Xin and Jin, Rui and Ge, Yong and Wang, Jinfeng and Wang, Jianghao},
  title = {Hybrid Optimal Design of the Eco-Hydrological Wireless Sensor Network in the Middle Reach of the Heihe River Basin, China},
  journal = {Sensors},
  year = {2014},
  month = {10},
  doi = {10.3390/s141019095}
}

%network: HiWATER_EHWSN
@article{A2014,
  author = {R. {Jin} and X. {Li} and B. {Yan} and X. {Li} and W. {Luo} and M. {Ma} and J. {Guo} and J. {Kang} and Z. {Zhu} and S. {Zhao}},
  title = {A Nested Ecohydrological Wireless Sensor Network for Capturing the Surface Heterogeneity in the Midstream Areas of the Heihe River Basin, China},
  journal = {IEEE Geoscience and Remote Sensing Letters},
  year = {2014},
  month = {11},
  volume = {11},
  number = {11},
  pages = {2015-2019},
  doi = {10.1109/LGRS.2014.2319085}
}

%network: HOAL
@article{The2016,
  author = {Blöschl, Günter, et al. },
  title = {The hydrological open air laboratory (HOAL) in Petzenkirchen: A hypothesis-driven observatory},
  journal = {Hydrology and Earth System Sciences},
  year = {2016},
  volume = {20},
  number = {1},
  pages = {227-255},
  doi = {https://doi.org/10.5194/hess-20-227-2016}
}

%network: HOAL
@inproceedings{Towards2013,
  author = {M. Vreugdenhil et al.},
  title = {Towards a high-density soil moisture network for the validation of SMAP in Petzenkirchen, Austria},
  journal = {IEEE International Geoscience and Remote Sensing Symposium},
  year = {2013},
  pages = {1865-1868},
  doi = {https://doi.org/10.1109/IGARSS.2013.6723166}
}

%network: HOBE
@article{Hobe2018,
  author = {Jensen, K. & Refsgaard, J. },
  title = {Hobe: The danish hydrological observatory},
  journal = {Vadose Zone},
  year = {2018},
  volume = {17},
  doi = {https://doi.org/10.2136/vzj2018.03.0059}
}

%network: HOBE
@article{A2012,
  author = {Bircher, S. and Skou, N. and Jensen, K. and Walker, Jeffrey and Rasmussen, L.},
  title = {A soil moisture and temperature network for SMOS validation in Western Denmark},
  journal = {Hydrology and Earth System Sciences},
  year = {2012},
  month = {5},
  volume = {16},
  doi = {10.5194/hess-16-1445-2012}
}

%network: HSC_SEOLMACHEON
We acknowledge the work of Yeongil Lee and Minha Choi and the HSC_SEOLMACHEON team in support of the ISMN.

%network: HYDROL-NET_PERUGIA
@article{Soil2014,
  author = {Morbidelli, Renato and Saltalippi, Carla and Flammini, Alessia and Rossi, E. and Corradini, C.},
  title = {Soil water content vertical profiles under natural conditions: Matching of experiments and simulations by a conceptual model},
  journal = {Hydrological Processes},
  year = {2014},
  month = {8},
  volume = {28},
  doi = {10.1002/hyp.9973}
}

%network: HYDROL-NET_PERUGIA
@article{Reassessment2018,
  author = {Flammini, Alessia and Morbidelli, Renato and Saltalippi, Carla and Picciafuoco, Tommaso and Corradini, Corrado and Govindaraju, Rao S},
  title = {Reassessment of a semi-analytical field-scale infiltration model through experiments under natural rainfall events},
  journal = {Journal of Hydrology},
  year = {2018},
  volume = {565},
  pages = {835--845},
  doi = {https://doi.org/10.1016/j.jhydrol.2018.08.073},
  url = {https://link.springer.com/article/10.1007/s11269-009-9481-7}
}

%network: HYDROL-NET_PERUGIA
@article{Experimental2018,
  author = {Flammini, Alessia and Corradini, Corrado and Morbidelli, Renato and Saltalippi, Carla and Picciafuoco, Tommaso and Gir{\'a}ldez, Juan Vicente},
  title = {Experimental analyses of the evaporation dynamics in bare soils under natural conditions},
  journal = {Water resources management},
  year = {2018},
  volume = {32},
  number = {3},
  pages = {1153--1166},
  doi = {10.1007/s11269-017-1860-x},
  url = {https://link.springer.com/article/10.1007/s11269-017-1860-x}
}

%network: HYDROL-NET_PERUGIA
@article{Soil2014,
  author = {Morbidelli, R and Saltalippi, C and Flammini, A and Rossi, E and Corradini, C},
  title = {Soil water content vertical profiles under natural conditions: Matching of experiments and simulations by a conceptual model},
  journal = {Hydrological Processes},
  year = {2014},
  volume = {28},
  number = {17},
  pages = {4732--4742},
  doi = {10.1002/hyp.9973},
  url = {https://onlinelibrary.wiley.com/doi/full/10.1002/hyp.9973}
}

%network: HYDROL-NET_PERUGIA
@article{Infiltrationsoil2011,
  author = {Morbidelli, R and Corradini, C and Saltalippi, C and Flammini, A and Rossi, E},
  title = {Infiltration-soil moisture redistribution under natural conditions: experimental evidence as a guideline for realizing simulation models},
  journal = {Hydrology and Earth System Sciences},
  year = {2011},
  volume = {15},
  number = {9},
  pages = {2937--2945},
  doi = {https://doi.org/10.5194/hess-15-2937-2011},
  url = {https://hess.copernicus.org/articles/15/2937/2011/}
}

%network: ICN
@article{A1994,
  author = {Hollinger, Steven and Isard, Scott},
  title = {A Soil Moisture Climatology of Illinois},
  journal = {Journal of Climate},
  year = {1994},
  month = {5},
  volume = {7},
  pages = {822-833},
  doi = {10.1175/1520-0442(1994)007<0822:ASMCOI>2.0.CO;2}
}

%network: IIT_Kanpur
We acknowledge the work of Tripathi Shivam and the IIT_Kanpur team in support of the ISMN.

%network: IMA_CAN1
@article{Longterm2016,
  author = {Biddoccu, Marcella and Ferraris, Stefano and Opsi, Francesca and Cavallo, Eugenio},
  title = {Long-term monitoring of soil management effects on runoff and soil erosion in sloping vineyards in Alto Monferrato (North–West Italy)},
  journal = {Soil and Tillage Research},
  year = {2016},
  month = {1},
  volume = {155},
  pages = {176-189},
  doi = {10.1016/j.still.2015.07.005}
}

%network: IMA_CAN1
@article{Effects2019,
  author = {Capello, G., Biddoccu, M., Ferraris, S. & Cavallo, E. },
  title = {Effects of tractor passes on hydrological and soil erosion processes in tilled and grassed vineyards},
  journal = {Water},
  year = {2019},
  volume = {11},
  number = {10},
  doi = {https://doi.org/10.3390/w11102118}
}

%network: IMA_CAN1
@article{Localand2018,
  author = {Raffelli, G., Id, M., Previati, M., Id, D., Canone, D., Gisolo, D., Bevilacqua, I., Capello, G., Biddoccu, M., Cavallo, E., Id, R., Deiana, R., Id, G., Cassiani, G. & Ferraris, S},
  title = {Local-and plot-scale measurements of soil moisture: Time and spatially resolved field techniques in plain, hill and mountain sites},
  journal = {Water},
  year = {2018},
  volume = {9},
  doi = {https://doi.org/10.3390/w9090706}
}

%network: IPE
@nan{Similar2020,
  author = {Alday, J. G., Camarero, J. J., Revilla, J. & Dios, V. R. },
  title = {Similar diurnal, seasonal and annual rhythms in radial root expansion across two coexisting mediterranean oak species},
  journal = {Tree Physiology},
  year = {2020},
  doi = {https://doi.org/10.1093/treephys/tpaa041}
}

%network: iRON
@article{A2021,
  author = {Osenga, E.C., Vano, J.A., and Arnott, J.C},
  title = {A community-supported weather and soil moisture monitoring database of the Roaring Fork catchment of the Colorado River Headwaters},
  journal = {Hydrologic Processes},
  year = {2021},
  doi = {https://doi.org/10.1002/hyp.14081}
}

%network: IOWA
@article{The2000,
  author = {Robock, Alan and Vinnikov, Konstantin and Srinivasan, Govindarajalu and Entin, Jared and Hollinger, Steven and Speranskaya, Nina and Liu, Suxia and Namkhai, A.},
  title = {The Global Soil Moisture Data Bank},
  journal = {Bulletin of the American Meteorological Society},
  year = {2000},
  month = {6},
  volume = {81},
  doi = {10.1175/1520-0477(2000)081<1281:TGSMDB>2.3.CO;2}
}

%network: iRON
@article{Bioclimatic2019,
  author = {Osenga, Elise and Arnott, James and Endsley, Kevin and Katzenberger, John},
  title = {Bioclimatic and Soil Moisture Monitoring Across Elevation in a Mountain Watershed: Opportunities for Research and Resource Management},
  journal = {Water Resources Research},
  year = {2019},
  month = {2},
  doi = {10.1029/2018WR023653}
}

%network: KHOREZM
We acknowledge the work of Patrick Knöfel and the KHOREZM team in support of the ISMN.

%network: LAB-net
@inproceedings{LABnet2014,
  author = {Mattar, Cristian and Santamaría-Artigas, Andrés and Durán-Alarcón, Claudio and Olivera-Guerra, Luis and Fuster, Rodrigo},
  title = {LAB-net: the First Chilean soil moisture network for Remote Sensing Applications.},
  journal = {Proccedings of the IV Recent Advances in Quantitative Remote Sensing},
  year = {2014},
  month = {9}
}

%network: LABFLUX
We acknowledge the work of Davide Gisolo, Canone Davide, Ferrari Stefano, Alessio Gentile and Previati Maurizio as well as the LABFLUX network team in support of the ISMN.

%network: MAQU, NAQU, NGARI
@article{The2011,
  author = {Su, Bob and Wen, Jun and Dente, L. and Velde, R. and Wang, Leto and Ma, Yaoming and Yang, Kun and Hu, Z.},
  title = {The Tibetan Plateau observatory of plateau scale soil moisture and soil temperature (Tibet-Obs) for quantifying uncertainties in coarse resolution satellite and model products},
  journal = {Hydrology and Earth System Sciences},
  year = {2011},
  month = {7},
  volume = {15},
  pages = {2303},
  doi = {10.5194/hess-15-2303-2011}
}

%network: MONGOLIA
@article{The2000,
  author = {Robock, Alan and Vinnikov, Konstantin and Srinivasan, Govindarajalu and Entin, Jared and Hollinger, Steven and Speranskaya, Nina and Liu, Suxia and Namkhai, A.},
  title = {The Global Soil Moisture Data Bank},
  journal = {Bulletin of the American Meteorological Society},
  year = {2000},
  month = {6},
  volume = {81},
  doi = {10.1175/1520-0477(2000)081<1281:TGSMDB>2.3.CO;2}
}

%network: METEROBS
We acknowledge the work of Nazzareno Diodato and the METEROBS team in support of the ISMN.

%network: VDS
@article
{Lband2021,
  author = {van der Schalie, Robin and van der Vliet, Mendy and Rodriguez-Fernandez, Nemesio and Dorigo, Wouter A and Scanlon, Tracy and Preimesberger, Wolfgang and Madelon, Remi and de Jeu, Richard AM},
  title = {L-band soil moisture retrievals using microwave based temperature and filtering. Towards model-independent climate data records},
  journal = {Remote Sensing},
  year = {2021},
  volume = {13},
  number = {13},
  pages = {2480},
  doi = {https://doi.org/10.3390/rs13132480},
  url = {https://www.mdpi.com/2072-4292/13/13/2480}
}

%network: NVE
We acknowledge the work of Fred Wenger and the Norwegian water resources and energy direcorate (NVE) team in support of the ISMN.

%network: ORACLE
We acknowledge the work of Arnaud Blanchouin and ORACLE team of the Institut national de recherche en sciences et technologies pour l"environment et l"agriculture, France in support of the ISMN.

%network: SD_DEM
@article{A2013,
  author = {Ardö, Jonas},
  title = {A 10-Year Dataset of Basic Meteorology and Soil Properties in Central Sudan},
  journal = {Dataset Papers in Geosciences},
  year = {2013},
  month = {1},
  volume = {2013},
  doi = {10.7167/2013/297973/dataset}
}

%network: OZNET
@article{The2012,
  author = {Smith, Adam and Walker, Jeffrey and Western, Andrew and Young, R. and Ellett, Kevin and Pipunic, Robert and Grayson, R. and Siriwardena, L. and Chiew, F. and Richter, Harald},
  title = {The Murrumbidgee Soil Moisture Monitoring Network data set},
  journal = {Water Resources Research},
  year = {2012},
  month = {7},
  volume = {48},
  pages = {7701-},
  doi = {10.1029/2012WR011976}
}

%network: OZNET
@article{Soil2008,
  author = {Young, Rodger and Walker, Jeffrey and Yeoh, Nicholas and Smith, Adam and Ellett, Kevin and Merlin, Olivier and Western, Andrew},
  title = {Soil moisture and meteorological observations from the Murrumbidgee catchment},
  journal = {Department of Civil and Environmental Engineering, The University of Melbourne},
  year = {2008},
  month = {-1}
}

%network: PBO_H2O
@article{Use2008,
  author = {Larson, Kristine and Small, Eric and Gutmann, Ethan and Bilich, Andria and Braun, John and Zavorotny, Valery and Larson, Citation},
  title = {Use of GPS receivers as a soil moisture network for water cycle studies},
  journal = {Geophysical Research Letters - GEOPHYS RES LETT},
  year = {2008},
  month = {12},
  volume = {35},
  doi = {10.1029/2008GL036013}
}

%network: PTSMN
@article{Field2019,
  author = {Hajdu, Istvan and Yule, Ian and Bretherton, Mike and Singh, Ranvir and Hedley, C.B.},
  title = {Field performance assessment and calibration of multi-depth AquaCheck capacitance-based soil moisture probes under permanent pasture for hill country soils},
  journal = {Agricultural Water Management},
  year = {2019},
  month = {3},
  volume = {217},
  pages = {332-345},
  doi = {10.1016/j.agwat.2019.03.002}
}

%network: RISMA
@article{Calibration2015,
  author = {Ojo, E. Rotimi and Bullock, Paul and L’Heureux, Jessika and Powers, Jarrett and McNairn, Heather and Pacheco, Anna},
  title = {Calibration and Evaluation of a Frequency Domain Reflectometry Sensor for Real-Time Soil Moisture Monitoring},
  journal = {Vadose Zone Journal},
  year = {2015},
  month = {3},
  volume = {14},
  doi = {10.2136/vzj2014.08.0114}
}

%network: RUSWET-AGRO
@article{The2000,
  author = {Robock, Alan and Vinnikov, Konstantin and Srinivasan, Govindarajalu and Entin, Jared and Hollinger, Steven and Speranskaya, Nina and Liu, Suxia and Namkhai, A.},
  title = {The Global Soil Moisture Data Bank},
  journal = {Bulletin of the American Meteorological Society},
  year = {2000},
  month = {6},
  volume = {81},
  doi = {10.1175/1520-0477(2000)081<1281:TGSMDB>2.3.CO;2}
}

%network: RUSWET-GRASS
@article{The2000,
  author = {Robock, Alan and Vinnikov, Konstantin and Srinivasan, Govindarajalu and Entin, Jared and Hollinger, Steven and Speranskaya, Nina and Liu, Suxia and Namkhai, A.},
  title = {The Global Soil Moisture Data Bank},
  journal = {Bulletin of the American Meteorological Society},
  year = {2000},
  month = {6},
  volume = {81},
  doi = {10.1175/1520-0477(2000)081<1281:TGSMDB>2.3.CO;2}
}

%network: RUSWET-VALDAI
@article{The2000,
  author = {Robock, Alan and Vinnikov, Konstantin and Srinivasan, Govindarajalu and Entin, Jared and Hollinger, Steven and Speranskaya, Nina and Liu, Suxia and Namkhai, A.},
  title = {The Global Soil Moisture Data Bank},
  journal = {Bulletin of the American Meteorological Society},
  year = {2000},
  month = {6},
  volume = {81},
  doi = {10.1175/1520-0477(2000)081<1281:TGSMDB>2.3.CO;2}
}

%network: RSMN
We acknowledge the work of Andrei Diamandi and Adelina Mihai and the Romanian National Meteorological Administration team in support of the ISMN.

%network: Ru_CFR
We acknowledge the work of Andrej Varlagin and Adelina Mihai and the Ru_CFR team of the A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences team in support of the ISMN.

%network: SASMAS
@article{Goulburn2007,
  author = {Rüdiger, Christoph and Hancock, Greg and Hemakumara, Herbert and Jacobs, Barry and Kalma, Jetse and Martinez, Cristina and Thyer, Mark and Walker, Jeffrey and Wells, Tony and Willgoose, Garry},
  title = {Goulburn River experimental catchment data set},
  journal = {Water Resources Research},
  year = {2007},
  month = {10},
  volume = {43},
  doi = {10.1029/2006WR005837}
}

%network: SMOSMANIA
@article{From2008,
  author = {Albergel, Clement and Rüdiger, Christoph and Pellarin, Thierry and Calvet, Jean-Christophe and Fritz, Noureddine and Froissard, Francis and Suquia, David and Petitpa, Alain and Piguet, Bruno and Martin, Eric},
  title = {From near-surface to root-zone soil moisture using an exponential filter: An assessment of the method based on in-situ observations and model simulations},
  journal = {Hydrology and Earth System Sciences},
  year = {2008},
  month = {11},
  volume = {12},
  doi = {10.5194/hess-12-1323-2008}
}

%network: SMOSMANIA
@inproceedings{In2007,
  author = {Calvet, Jean-Christophe and Fritz, Noureddine and Froissard, Francis and Suquia, David and Petitpa, Alain and Piguet, Bruno},
  title = {In situ soil moisture observations for the CAL/VAL of SMOS: the SMOSMANIA network},
  year = {2007},
  month = {8},
  pages = {1196 - 1199},
  doi = {10.1109/IGARSS.2007.4423019}
}

%network: SNOTEL
@article{A2008,
  author = {Leavesley, George and David, Olaf and Garen, D. and Lea, J. and Marron, J. and Pagano, Thomas and Perkins, T. and Strobel, M.},
  title = {A Modeling Framework for Improved Agricultural Water Supply Forecasting},
  journal = {AGU Fall Meeting Abstracts},
  year = {2008},
  month = {12}
}

%network: SOILSCAPE
@article{A2011,
  author = {Moghaddam, Mahta and Entekhabi, Dara and Goykhman, Yuriy and Li, Ke and Liu, Mingyan and Mahajan, Aditya and Nayyar, Ashutosh and Shuman, David and Teneketzis, D.},
  title = {A Wireless Soil Moisture Smart Sensor Web Using Physics-Based Optimal Control: Concept and Initial Demonstrations},
  journal = {Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of},
  year = {2011},
  month = {4},
  volume = {3},
  pages = {522 - 535},
  doi = {10.1109/JSTARS.2010.2052918}
}

%network: SOILSCAPE
@inproceedings{Soil2016,
  author = {Mahta Moghaddam and Agnelo R. Silva and Daniel Clewley and Ruzbeh Akbar and S. A. Hussaini and Jane Whitcomb and Ranjeet Devarakonda and Rupesh Shrestha and Robert B. Cook and G. Prakash and Suresh K. Santhana Vannan and Alison G. Boyer},
  title = {Soil Moisture Profiles and Temperature Data from SoilSCAPE Sites, USA},
  year = {2016},
  month = {-1},
  doi = {10.1109/JSTARS.2010.2052918}
}

%network: SW-WHU
@article{Integrated2015,
  author = {Chen, Nengcheng and Xiang, Zhang and Wang, Chao},
  title = {Integrated open geospatial web service enabled cyber-physical information infrastructure for precision agriculture monitoring},
  journal = {Computers and Electronics in Agriculture},
  year = {2015},
  month = {2},
  volume = {111},
  doi = {10.1016/j.compag.2014.12.009}
}

%network: SW-WHU
@article{CyberPhysical2015,
  author = {Chen, Nengcheng and Xiao, Changjiang and Pu, Fangling and Wang, Xiaolei and Wang, Chao and Wang, Zhili and Gong, Jianya},
  title = {Cyber-Physical Geographical Information Service-Enabled Control of Diverse In-Situ Sensors},
  journal = {Sensors (Basel, Switzerland)},
  year = {2015},
  month = {2},
  volume = {15},
  pages = {2565-92},
  doi = {10.3390/s150202565}
}

%network: SWEX_POLAND
@article{Strategies2010,
  author = {Marczewski, Wojciech and Slominski, J. and Slominska, Ewa and Usowicz, Boguslaw and Usowicz, Jerzy and S, Romanov and O, Maryskevych and Nastula, J. and Zawadzki, J.},
  title = {Strategies for validating and directions for employing SMOS data, in the Cal-Val project SWEX (3275) for wetlands},
  journal = {Hydrology and Earth System Sciences Discussions},
  year = {2010},
  month = {9},
  volume = {7},
  doi = {10.5194/hessd-7-7007-2010}
}

%network: TAHMO
We acknowledge the work of Frank Annor and Nicolaas Cornelis van de Giesen and the Trans-African Hydro-Meterological Observatory (TAHMO) network community in support of the ISMN.

%network: TERENO
@article{A2011,
  author = {Zacharias, Steffen and Bogena, Heye and Samaniego, Luis and Mauder, Matthias and Fuß, Roland and Pütz, Thomas and Frenzel, Mark and Schwank, Mike and Baessler, Cornelia and Butterbach-Bahl, Klaus and Bens, Oliver and Borg, Erik and Brauer, Achim and Dietrich, Peter and Hajnsek, Irena and Helle, Gerhard and Kiese, Ralf and Kunstmann, Harald and Klotz, Stefan and Vereecken, Harry},
  title = {A Network of Terrestrial Environmental Observatories in Germany},
  journal = {Vadose Zone Journal},
  year = {2011},
  month = {12},
  volume = {10},
  pages = {955-973},
  doi = {10.2136/vzj2010.0139}
}

%network: UDC_SMOS
@article{Uncertainty2012,
  author = {F. {Schlenz} and J. T. {dall"Amico} and A. {Loew} and W. {Mauser}},
  title = {Uncertainty Assessment of the SMOS Validation in the Upper Danube Catchment},
  journal = {IEEE Transactions on Geoscience and Remote Sensing},
  year = {2012},
  month = {-1},
  volume = {50},
  number = {5},
  pages = {1517-1529}
}

%network: UDC_SMOS
@inproceedings{The2009,
  author = {Loew, Alexander and dall"Amico, J. and Schlenz, Florian and Mauser, Wolfram},
  title = {The Upper Danube soil moisture validation site: measurements and activities},
  year = {2009},
  month = {1}
}

%network: UMBRIA
@article{Soil2011,
  author = {Brocca, Luca and Hasenauer, Stefan and Lacava, Teodosio and Melone, F. and Moramarco, T. and Wagner, W. and A, Dorigo and Matgen, Patrick and Martínez-Fernández, José and Llorens, Pilar and Latron, Jérôme and Martin, C. and Bittelli, Marco},
  title = {Soil moisture estimation through ASCAT and AMSR-E sensors: An intercomparison and validation study across Europe},
  journal = {Remote Sensing of Environment},
  year = {2011},
  month = {12},
  volume = {115},
  pages = {3390-3408},
  doi = {10.1016/j.rse.2011.08.003}
}

%network: UMBRIA
@article{On2008,
  author = {Brocca, Luca and Melone, F. and Moramarco, T.},
  title = {On the estimation of antecedent wetness condition in rainfall-runoff modeling},
  journal = {Hydrological Processes},
  year = {2008},
  month = {2},
  volume = {22},
  pages = {629-642},
  doi = {10.1002/hyp.6629}
}

%network: USCRN
@article{US2013,
  author = {Bell, Jesse and Palecki, Michael and Baker, Bruce and Collins, William and Lawrimore, Jay and Leeper, Ronald and Hall, Mark and Kochendorfer, John and Meyers, Tilden and Wilson, Tim and Diamond, Howard},
  title = {U.S. Climate Reference Network Soil Moisture and Temperature Observations},
  journal = {Journal of Hydrometeorology},
  year = {2013},
  month = {6},
  volume = {14},
  pages = {977-988},
  doi = {10.1175/JHM-D-12-0146.1}
}

%network: USDA-ARS
@article{Validation2011,
  author = {Jackson, Thomas and Cosh, Michael and Bindlish, Rajat and Starks, P. and Bosch, David and Seyfried, Mark and Goodrich, David and Moran, Mary and Du, Jinyang},
  title = {Validation of Advanced Microwave Scanning Radiometer Soil Moisture Products},
  journal = {Geoscience and Remote Sensing, IEEE Transactions on},
  year = {2011},
  month = {1},
  volume = {48},
  pages = {4256 - 4272},
  doi = {10.1109/TGRS.2010.2051035}
}

%network: UMSUOL
We acknowledge the work of Andrea Pasquali and the UMSUOL network team provided by the Agenzia Regionale Prevenzione Ambiente - Servizio Idro-Meteo-Clima (ARPA - SIMC) in support of the ISMN.

%network: STEMS
@article{Effects2019,
  author = {Capello G., Biddoccu M., Ferraris S., Cavallo E.},
  title = {Effects of tractor passes on hydrological and soil erosion processes in tilled and grassed vineyards},
  journal = {Water},
  year = {2019},
  month = {-1},
  volume = {11},
  number = {10},
  doi = {https://doi.org/10.3390/w11102118},
  url = {https://www.mdpi.com/2073-4441/11/10/2118}
}

%network: STEMS
@article{Water2022,
  author = {Darouich, H.; Ramos, T.B.; Pereira, L.S.; Rabino, D.; Bagagiolo, G.; Capello, G.; Simionesei, L.; Cavallo, E.; Biddoccu, M. },
  title = {Water Use and Soil Water Balance of Mediterranean Vineyards under Rainfed and Drip Irrigation Management: Evapotranspiration Partition and Soil Management Modelling for Resource Conservation},
  journal = {Water},
  year = {2022},
  month = {-1},
  volume = {14},
  number = {4},
  doi = {https://doi.org/10.3390/w14040554},
  url = {https://www.mdpi.com/2073-4441/14/4/554}
}

%network: TxSON
@article{The2019,
  author = {Caldwell, T. G., T. Bongiovanni, M. H. Cosh, T. J. Jackson, A. Colliander, C. J. Abolt, R. Casteel, T. Larson, B. R. Scanlon, and M. H. Young},
  title = {The Texas Soil Observation Network: A comprehensive soil moisture dataset for remote sensing and land surface model validation},
  journal = {Vadose Zone Journal},
  year = {2019},
  month = {9},
  volume = {18},
  pages = {2025-01-20 00:00:00},
  doi = {https://doi.org/10.2136/vzj2019.04.0034}
}

%network: SONTE-China
@nan{Accuracy2022,
  author = {Bingze Li, Chunmei Wang, Xingfa Gu, Xiang Zhou et al.},
  title = {Accuracy calibration and evaluation of capacitance-based soil moisture sensors for a variety of soil properties},
  journal = {Agricultural Water Management},
  year = {2022},
  month = {11},
  volume = {273},
  number = {107913},
  doi = {https://doi.org/10.1016/j.agwat.2022.107913}
}

%network: SONTE-China
@nan{HighPrecision2020,
  author = {Leran Han, Chunmei Wang, Tao Yu, Xingfa Gu et al.},
  title = {High-Precision soil moisture mapping based on multi-model coupling and background knowledge, over vegetated areas using Chinese GF-3 and GF-1 satellite data},
  journal = {Remote Sensing},
  year = {2020},
  volume = {12},
  number = {13}
}

%network: TWENTE
@nan{Twelve2023,
  author = {Van der Velde, R., Benninga, H. J. F., Retsios, B., Vermunt, P. C., & Salama, M. S.},
  title = {Twelve years of profile soil moisture and temperature measurements in Twente, the Netherlands},
  journal = {Earth System Science Data},
  year = {2023},
  volume = {15},
  number = {4},
  pages = {1889-1910},
  doi = {https://doi.org/10.5194/essd-15-1889-2023},
  url = {https://essd.copernicus.org/articles/15/1889/2023/}
}

%network: TWENTE
@nan{Twente2018,
  author = {Dente, L., Vekerdy, Z., Su, Z.,  Ucer, M.},
  title = {Twente soil moisture and soil temperature monitoring network, Tech. rep., Faculty of Geo-Information Science and Earth Observation
(ITC), University of Twente, Enschede, NL},
  year = {2018},
  month = {9},
  url = {https://www.itc.nl/library/papers_2011/scie/dente_twe.pdf}
}

%network: BIEBRZA_S-1
@article{Soil2018,
  author = {Dabrowska-Zielinska K., Musial J., Malinska A., Budzynska M., Gurdak R., Kiryla W., Bartold M., Grzybowski P.},
  title = {Soil Moisture in the Biebrza Wetlands Retrieved from Sentinel-1 Imagery},
  journal = {Remote Sensing },
  year = {2018},
  volume = {10},
  number = {12},
  pages = {1979},
  doi = {https://doi.org/10.3390/rs10121979},
  url = {https://www.mdpi.com/2072-4292/10/12/1979}
}

%network: COSMOS-UK
@article{COSMOSUK2021,
  author = {Cooper, H. M., Bennett, E., Blake, J., Blyth, E., Boorman, D., Cooper, E., Evans, J., Fry, M., Jenkins, A., Morrison, R., Rylett, D., Stanley, S., Szczykulska, M., Trill, E., Antoniou, V., Askquith-Ellis, A., Ball, L., Brooks, M., Clarke, M. A., Cowan, N., Cumming, A., Farrand, P., Hitt, O., Lord, W., Scarlett, P., Swain, O., Thornton, J., Warwick, A., and Winterbourn, B.},
  title = {COSMOS-UK: national soil moisture and hydrometeorology data for environmental science research},
  journal = {Earth Syst. Sci. Data},
  year = {2021},
  month = {-1},
  volume = {13},
  number = {4},
  pages = {1737-1757},
  doi = {https://doi.org/10.5194/essd-13-1737-2021}
}

%network: LAB-net
@article{The2016,
  author = {Mattar, C., Santamaria-Artigas, A., Duran-Alarcon, C., Olivera-Guerra, L., Fuster, R. & Borvar´an, D. },
  title = {The lab-net soil moisture network: Application to thermal remote sensing and surface energy balance},
  journal = {Data},
  year = {2016},
  volume = {1},
  number = {1},
  doi = {https://doi.org/10.3390/data1010006}
}

%network: MAQU
@article{Validation2012,
  author = {Dente, L., Su, Z. & Wen, J. },
  title = {Validation of smos soil moisture products over the maqu and twente regions},
  journal = {Sensors},
  year = {2012},
  volume = {12},
  number = {8},
  pages = {9965–9986},
  doi = {https://doi.org/10.3390/s120809965}
}

%network: MOL-RAO
@report{Site2007,
  author = {Frank Beyrich and Wolfgang K. Adam},
  title = {Site and Data Report for the Lindenberg Reference Site in CEOP – Phase I},
  year = {2007},
  url = {https://www.cen.uni-hamburg.de/en/icdc/data/atmosphere/docs-atmo/dwd230-ceop-report.pdf}
}

%network: MySMNet
@article{Calibration2019,
  author = {Kang, C. S., Kanniah, K. D. & Kerr, Y. H. },
  title = {Calibration of smos soil moisture retrieval algorithm: A case of tropical site in malaysia},
  journal = {IEEE Transactions on Geoscience and Remote Sensing },
  year = {2019},
  volume = {57},
  number = {6},
  pages = {3827–3839},
  doi = {https://doi.org/10.1109/TGRS.2018.2888535}
}

%network: NAQU
@article{The2011,
  author = {Su, Bob and Wen, Jun and Dente, L. and Velde, R. and Wang, Leto and Ma, Yaoming and Yang, Kun and Hu, Z.},
  title = {The Tibetan Plateau observatory of plateau scale soil moisture and soil temperature (Tibet-Obs) for quantifying uncertainties in coarse resolution satellite and model products},
  journal = {Hydrology and Earth System Sciences},
  year = {2011},
  month = {7},
  volume = {15},
  pages = {2303},
  doi = {10.5194/hess-15-2303-2011}
}

%network: NAQU
@article{Validation2012,
  author = {Dente, L., Su, Z. & Wen, J. },
  title = {Validation of smos soil moisture products over the maqu and twente regions},
  journal = {Sensors},
  year = {2012},
  volume = {12},
  number = {8},
  pages = {9965–9986},
  doi = {https://doi.org/10.3390/s120809965}
}

%network: NGARI
@article{The2011,
  author = {Su, Bob and Wen, Jun and Dente, L. and Velde, R. and Wang, Leto and Ma, Yaoming and Yang, Kun and Hu, Z.},
  title = {The Tibetan Plateau observatory of plateau scale soil moisture and soil temperature (Tibet-Obs) for quantifying uncertainties in coarse resolution satellite and model products},
  journal = {Hydrology and Earth System Sciences},
  year = {2011},
  month = {7},
  volume = {15},
  pages = {2303},
  doi = {10.5194/hess-15-2303-2011}
}

%network: NGARI
@article{Validation2012,
  author = {Dente, L., Su, Z. & Wen, J.},
  title = {Validation of smos soil moisture products over the maqu and twente regions},
  journal = {Sensors},
  year = {2012},
  volume = {12},
  number = {8},
  pages = {9965–9986},
  doi = {https://doi.org/10.3390/s120809965}
}

%network: REMEDHUS
@article{Cci2018,
  author = {Gonzalez-Zamora, A., Sanchez, N., Pablos, M. & Martinez-Fernandez, J. },
  title = {Cci soil moisture assessment with smos soil moisture and in situ data under different environmental conditions and spatial scales in spain},
  journal = {Remote Sensing of Environment},
  year = {2018},
  volume = {225},
  doi = {https://doi.org/10.1016/j.rse.2018.02.010}
}

%network: RISMA
@report{20112011,
  author = {L’Heureux, J},
  title = {2011 Installation Report for AAFC‐ SAGES Soil Moisture Stations in Kenaston, SK},
  journal = {Agriculture},
  year = {2011}
}

%network: RISMA
@report{Calibration2011,
  author = {Canisius, F. },
  title = {Calibration of Casselman, Ontario Soil Moisture Monitoring Network, Agriculture and Agri‐Food Canada, Ottawa, ON},
  year = {2011},
  pages = {33}
}

%network: RU-ADDFerti
We acknowledge the work of Alexander Steiger and the RU-ADDFerti network team in support of the ISMN.

%network: SCAN
@article{The2007,
  author = {Schaefer, G., Cosh, M. & Jackson, T. },
  title = {The usda natural resources conservation service soil climate analysis network (scan)},
  journal = {Atmospheric and Oceanic Technology },
  year = {2007},
  volume = {24},
  url = {https://doi.org/10.1175/2007JTECHA930.1}
}

%network: SKKU
@article{Evaluation2017,
  author = {Nguyen, H. H., Kim, H. & Choi, M. },
  title = {Evaluation of the soil water content using cosmic-ray neutron probe in a heterogeneous monsoon climate-dominated region},
  journal = {Advances in Water Resources},
  year = {2017},
  volume = {108},
  pages = {125–138},
  doi = {https://doi.org/10.1016/j.advwatres.2017.07.020}
}

%network: SMN-SDR
@article{Soil2020,
  author = {Zhao, T., Shi, J., Lv, L., Xu, H., Chen, D., Cui, Q., Jackson, T.J., Yan, G., Jia, L., Chen, L., Zhao, K., Zheng, X., Zhao, L., Zheng, C., Ji, D., Xiong, C., Wang, T., Li, R., Pan, J., Wen, J., Yu, C., Zheng, Y., Jiang, L., Chai, L., Lu, H., Yao, P., Ma, J., Lv, H., Wu, J., Zhao, W., Yang, N., Guo, P., Li, Y., Hu, L., Geng, D., Zhang, Z},
  title = {Soil moisture experiment in the Luan River supporting new satellite mission opportunities},
  journal = {Remote Sensing of Environment},
  year = {2020},
  volume = {240},
  pages = {111680},
  doi = {https://doi.org/10.1016/j.rse.2020.111680}
}

%network: SMN-SDR
@article{Assessment2022,
  author = {Zheng, J., Zhao, T., Lü, H., Shi, J., Cosh, M.H., Ji, D., Jiang, L., Cui, Q., Lu, H., Yang, K., Wigneron, J.-P., Li, X., Zhu, Y., Hu, L., Peng, Z., Zeng, Y., Wang, X., Kang, C.S., },
  title = {Assessment of 24 soil moisture datasets using a new in situ network in the Shandian River Basin of China},
  journal = {Remote Sensing of Environment},
  year = {2022},
  volume = {271},
  pages = {112891},
  doi = {https://doi.org/10.1016/j.rse.2022.112891}
}

%network: SMOSMANIA
@article{Deriving2016,
  author = {Calvet, J.-C., Fritz, N., Berne, C., Piguet, B., Maurel, W. & Meurey, C. },
  title = {Deriving pedotransfer functions for soil quartz fraction in southern france from reverse modeling},
  journal = {Soil},
  year = {2016},
  volume = {2},
  number = {4},
  pages = {615–629},
  doi = {https://doi.org/10.5194/soil-2-615-2016}
}

%network: SOILSCAPE
@inproceedings{Measurement2010,
  author = {Shuman, D. I., Nayyar, A., Mahajan, A., Goykhman, Y., Li, K., Liu, M., Teneketzis, D., Moghaddam, M. & Entekhabi, D},
  title = {Measurement scheduling for soil moisture sensing: From physical models to optimal control},
  journal = {Proceedings of the IEEE },
  year = {2010},
  month = {-1},
  volume = {98},
  number = {11},
  pages = {1918–1933},
  doi = {https://doi.org/10.1109/JPROC.2010.2052532}
}

%network: SW-WHU
@article{Geospatial2018,
  author = {Zhang, X., Chen, N., Chen, Z., Wu, L., Li, X., Zhang, L., Di, L., Gong, J. & Li, D. },
  title = {Geospatial sensor web: A cyber-physical infrastructure for geoscience research and application},
  journal = {Earth-science reviews },
  year = {2018},
  volume = {185},
  pages = {684–703},
  doi = {https://doi.org/10.1016/j.earscirev.2018.07.006}
}

%network: TERENO
@article{Terenolongterm2012,
  author = {Bogena, H., Kunkel, R., Puetz, T., Vereecken, H., Krueger, E., Zacharias, S., Dietrich, P., Wollschlaeger, U., Kunstmann, H., Papen, H. and Schmid, H.P.},
  title = {Tereno-long-term monitoring network for terrestrial environmental research},
  journal = {Hydrologie und Wasserbewirtschaftung},
  year = {2012},
  volume = {56},
  number = {3},
  pages = {138-143},
  doi = {https://doi.org/DOI:%10.5675}
}

%network: TERENO
@article{Tereno2016,
  author = {Bogena, H. R.},
  title = {Tereno: German network of terrestrial environmental observatories},
  journal = {Journal of large-scale research facilities},
  year = {2016},
  volume = {2},
  number = {52},
  doi = {http://dx.doi.org/10.17815/jlsrf-2-98}
}

%network: TERENO
@article{The2018,
  author = {Bogena, H.R., Montzka, C., Huisman, J.A., Graf, A., Schmidt, M., Stockinger, M., Von Hebel, C., Hendricks-Franssen, H.J., Van der Kruk, J., Tappe, W. and Lücke, A.},
  title = {The TERENO‐Rur hydrological observatory: A multiscale multi‐compartment research platform for the advancement of hydrological science},
  journal = {Vadose Zone },
  year = {2018},
  volume = {17},
  number = {1},
  pages = {2025-01-22 00:00:00},
  doi = {https://doi.org/10.2136/vzj2018.03.0055}
}

%network: UMBRIA
@article{Antecedent2009,
  author = {Brocca, L., Melone, F., Moramarco, T., Morbidelli, R.},
  title = {Antecedent wetness conditions based on ERS scatterometer data},
  journal = {Journal of Hydrology},
  year = {2009},
  volume = {364},
  pages = {73-87},
  doi = {https://doi.org/10.1016/j.jhydrol.2008.10.007}
}

%network: WEGENERNET
@article{WegenerNet2021,
  author = {Fuchsberger, J., Kirchengast, G. & Kabas, T. },
  title = {WegenerNet high-resolution weather and climate data from 2007 to 2020},
  journal = {Earth Syst. Sci. Data},
  year = {2021},
  volume = {13},
  pages = {1307–1334},
  doi = {https://doi.org/10.5194/essd-13-1307-2021}
}

%network: WEGENERNET
@article{Wegenernet2014,
  author = {Kirchengast, G., Kabas, T., Leuprecht, A., Bichler, C. & Truhetz, H.},
  title = {Wegenernet: A pioneering high-resolution network for monitoring weather and climate},
  journal = {Bulletin of the American Meteorological Society },
  year = {2014},
  doi = {https://doi.org/10.1175/BAMS-D-11-00161.1}
}

%network: WSMN
@article{An2017,
  author = {Petropoulos, G. P. & McCalmont, J. P. },
  title = {An operational in situ soil moisture & soil temperature monitoring network for west wales, uk: The wsmn network},
  journal = {Sensors},
  year = {2017},
  volume = {17},
  number = {7},
  pages = {1481},
  doi = {https://doi.org/10.3390/s17071481}
}

%network: WATERLINE
We acknowledge the work of Prof Alexandra Gemitzi, Stavros Stathopoulos and the entire WATERLINE team and their contributions in support of the ISMN.

%network: CW3E
@collection{Center2022,
  author = {Ralph, F. Martin; Wilson, Anna M.; Alden, Douglas; Ellis, Carolyn J.; Cooper, Ava; Paulsson, Kerstin; Kawzenuk, Brian K.; Yao, Peter},
  title = {Center for Western Weather and Water Extremes (CW3E) Surface Meteorological Observational Dataset. },
  journal = {UC San Diego Library Digital Collections},
  year = {2022},
  doi = {https://doi.org/10.6075/J0SX6DDH}
}

%network: ROMPS
@article{Hydrometeorological2021,
  author = {Zech C., Schoene T., Illigner J., Stolarczuk N., Queisser T., Koeppl M., Thoss H., Zubovich A., Sharshebaev A., Zakhidov K., Toshpulatov K., Tillayev Y., Olimov S., Paiman Z., Unger-Shayesteh K., Gafurov A., and Moldobekov, B.},
  title = {Hydrometeorological data from a Remotely Operated Multi-Parameter Station network in Central Asia},
  journal = {Earth System Science Data},
  year = {2021},
  volume = {13},
  number = {3},
  pages = {1289-1306},
  doi = {https://doi.org/10.5194/essd-13-1289-2021},
  url = {https://essd.copernicus.org/articles/13/1289/2021/}
}

%network: VAS
We acknowledge the work of Yann H. Kerr and the VAS network team provided by the Climatology from Satellites Group (GCS) - University of Valencia in support of the ISMN.

%network: XMS-CAT
We acknowledge the work of Agnès Lladós and Lola Boquera as well as the XMS-CAT network team in support of the ISMN.