The International Soil Moisture Network: serving Earth system science for over a decade

Author:

Dorigo WouterORCID,Himmelbauer Irene,Aberer Daniel,Schremmer Lukas,Petrakovic Ivana,Zappa LucaORCID,Preimesberger WolfgangORCID,Xaver Angelika,Annor FrankORCID,Ardö JonasORCID,Baldocchi DennisORCID,Bitelli Marco,Blöschl Günter,Bogena HeyeORCID,Brocca LucaORCID,Calvet Jean-ChristopheORCID,Camarero J. Julio,Capello Giorgio,Choi Minha,Cosh Michael C.,van de Giesen NickORCID,Hajdu Istvan,Ikonen Jaakko,Jensen Karsten H.,Kanniah Kasturi Devi,de Kat Ileen,Kirchengast GottfriedORCID,Kumar Rai Pankaj,Kyrouac Jenni,Larson KristineORCID,Liu Suxia,Loew Alexander,Moghaddam Mahta,Martínez Fernández JoséORCID,Mattar Bader Cristian,Morbidelli Renato,Musial Jan P.,Osenga Elise,Palecki Michael A.,Pellarin Thierry,Petropoulos George P.,Pfeil IsabellaORCID,Powers Jarrett,Robock AlanORCID,Rüdiger ChristophORCID,Rummel Udo,Strobel Michael,Su Zhongbo,Sullivan RyanORCID,Tagesson Torbern,Varlagin Andrej,Vreugdenhil Mariette,Walker Jeffrey,Wen Jun,Wenger Fred,Wigneron Jean PierreORCID,Woods Mel,Yang Kun,Zeng Yijian,Zhang XiangORCID,Zreda Marek,Dietrich StephanORCID,Gruber AlexanderORCID,van Oevelen PeterORCID,Wagner WolfgangORCID,Scipal Klaus,Drusch Matthias,Sabia Roberto

Abstract

Abstract. In 2009, the International Soil Moisture Network (ISMN) was initiated as a community effort, funded by the European Space Agency, to serve as a centralised data hosting facility for globally available in situ soil moisture measurements (Dorigo et al., 2011b, a). The ISMN brings together in situ soil moisture measurements collected and freely shared by a multitude of organisations, harmonises them in terms of units and sampling rates, applies advanced quality control, and stores them in a database. Users can freely retrieve the data from this database through an online web portal (https://ismn.earth/en/, last access: 28 October 2021). Meanwhile, the ISMN has evolved into the primary in situ soil moisture reference database worldwide, as evidenced by more than 3000 active users and over 1000 scientific publications referencing the data sets provided by the network. As of July 2021, the ISMN now contains the data of 71 networks and 2842 stations located all over the globe, with a time period spanning from 1952 to the present. The number of networks and stations covered by the ISMN is still growing, and approximately 70 % of the data sets contained in the database continue to be updated on a regular or irregular basis. The main scope of this paper is to inform readers about the evolution of the ISMN over the past decade, including a description of network and data set updates and quality control procedures. A comprehensive review of the existing literature making use of ISMN data is also provided in order to identify current limitations in functionality and data usage and to shape priorities for the next decade of operations of this unique community-based data repository.

Funder

European Commission

Russian Foundation for Basic Research

Publisher

Copernicus GmbH

Subject

General Earth and Planetary Sciences,General Engineering,General Environmental Science

Reference455 articles.

1. Abbaszadeh, P., Moradkhani, H., and Zhan, X.: Downscaling SMAP Radiometer Soil Moisture Over the CONUS Using an Ensemble Learning Method, Water Resour. Res., 55, 324–344, https://doi.org/10.1029/2018WR023354, 2019. a

2. Aberer, D.: Validation of ESA CCI SM combined v05.2 vs ISMN 20191211 global – without anomalies and without ISMN flags, Zenodo [data set], https://doi.org/10.5281/zenodo.4288919, 2020a. a

3. Aberer, D.: Validation of ESA CCI SM combined v05.2 vs ISMN 20191211 global – without Anomalies and ISMN flagged, Zenodo [data set], https://doi.org/10.5281/zenodo.4288921, 2020b. a

4. Aberer, D.: Validation of ESA CCI SM combined v05.2 vs ISMN 20191211 global – Anomalies and no ISMN flags, Zenodo [data set], https://doi.org/10.5281/zenodo.4288915, 2020c. a

5. Aberer, D.: Validation of ESA CCI SM combined v05.2 vs ISMN 20191211 global – Anomalies and ISMN flagged, Zenodo [data set], https://doi.org/10.5281/zenodo.4288913, 2020d. a

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