Table 2.
List of ISMN14 participating networks and the number of sensors per depth considered in this study.
| Network | Country | Number of sensors used (Layer1/Layer2/Layer3) |
|---|---|---|
| AMMA-CATCH64 | Benin, Niger, Mali | 10/6/4 |
| ARM65 | USA | 61/42/44 |
| BIEBRZA-S-166 | Poland | 20/10/5 |
| BNZ-LTER67 | Alaska | 15/13/10 |
| CALABRIA | Italy | 0/4/0 |
| CAMPANIA68 | Italy | 0/2/0 |
| CARBOAFRICA69 | Sudan | 1/1/0 |
| COSMOS70 | USA | 6/36/1 |
| CTP-SMTMN71 | China | 72/73/73 |
| DAHRA72 | Senegal | 1/1/1 |
| FLUXNET-AMERIFLUX73 | USA | 0/2/0 |
| FMI74 | Finland | 24/13/8 |
| FR-Aqui75 | France | 4/2/2 |
| GROW76 | UK | 149/0/0 |
| GTK | Finland | 7/7/7 |
| HiWATER-EHWSN77 | China | 166/46/46 |
| HOBE78 | Denmark | 70/54/0 |
| HSC-SELMACHEON | Korea | 1/0/0 |
| HYDROL-NET-PERUGIA79 | Italy | 2/0/0 |
| ICN80 | USA | 1/1/1 |
| IIT-KANPUR | India | 1/1/1 |
| IMA-CAN181 | Italy | 12/0/0 |
| IPE | Spain | 2/1/0 |
| iRON82 | USA | 11/18/0 |
| LAB-net83 | Chile | 3/1/0 |
| MAQU84 | China | 19/0/0 |
| METEROBS | Italy | 1/1/0 |
| MOL-RAO85 | Germany | 2/2/1 |
| MySMNet | Malaysia | 7/0/7 |
| OZNET86 | Australia | 35/38/38 |
| PTSMN87 | New Zealand | 0/20/20 |
| REMEDHUS88 | Spain | 24/0/0 |
| RISMA89 | Canada | 58/43/44 |
| RSMN | Romania | 20/0/0 |
| SASMAS90 | Australia | 14/14/0 |
| SCAN91 | USA | 293/288/287 |
| SKKU | Korea | 5/5/5 |
| SMOSMANIA92 | France | 29/30/0 |
| SNOTEL93 | USA | 404/415/399 |
| SOILSCAPE94 | USA | 135/145/33 |
| SW-WHU95 | China | 3/0/0 |
| SWEX-POLAND96 | Poland | 16/4/16 |
| TERENO97 | Germany | 14/14/14 |
| UDC-SMOS98 | Germany | 28/8/5 |
| UMBRIA68 | Italy | 0/13/13 |
| UMSUOL | Italy | 1/1/1 |
| USCRN99 | USA | 109/88/ 88 |
| USDA-ARS100 | USA | 2/0/0 |
| VAS | Spain | 7/0/0 |
| WEGENERNET101 | Austria | 0/12/0 |
| WSMN102 | UK | 7/0/0 |
In total, we collect in-situ measurements from 51 ISMN networks across the globe. More detailed information can be found from https://ismn.geo.tuwien.ac.at/en/networks/.