TY - GEN
T1 - Cosmic-ray neutron probes for satellite soil moisture validation
AU - Montzka, Carsten
AU - Bogena, Heye R.
AU - Zreda, Marek
AU - Monerris, Alessandra
AU - Morrison, Ross
AU - Muddu, Sekhar
AU - Vereecken, Harry
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - Low resolution satellite products are often validated by point-scale in-situ soil moisture measurements from TDR/FDR devices, where the scale mismatch limits the quality of validation efforts in heterogeneous regions. In Cosmic Ray Neutron Probes (CRNP) provide area-average soil moisture within a 150-250 m radius footprint, so that they are able to fill the scale gap between both systems. In this study we evaluate differences and communalities between CRNP observations, and surface soil moisture products from the Advanced Microwave Scanning Radiometer 2 (AMSR2), the METOP-A/B Advanced Scatterometer (ASCAT), the Soil Moisture Active and Passive (SMAP), the Soil Moisture and Ocean Salinity (SMOS), as well as simulations from the Global Land Data Assimilation System Version 2 (GLDAS2). CRNPs within the Rur catchment in Germany have been selected for comparison. Standard validation scores identified SMAP to provide a high accuracy soil moisture product with low noise or uncertainties as compared to CRNPs.
AB - Low resolution satellite products are often validated by point-scale in-situ soil moisture measurements from TDR/FDR devices, where the scale mismatch limits the quality of validation efforts in heterogeneous regions. In Cosmic Ray Neutron Probes (CRNP) provide area-average soil moisture within a 150-250 m radius footprint, so that they are able to fill the scale gap between both systems. In this study we evaluate differences and communalities between CRNP observations, and surface soil moisture products from the Advanced Microwave Scanning Radiometer 2 (AMSR2), the METOP-A/B Advanced Scatterometer (ASCAT), the Soil Moisture Active and Passive (SMAP), the Soil Moisture and Ocean Salinity (SMOS), as well as simulations from the Global Land Data Assimilation System Version 2 (GLDAS2). CRNPs within the Rur catchment in Germany have been selected for comparison. Standard validation scores identified SMAP to provide a high accuracy soil moisture product with low noise or uncertainties as compared to CRNPs.
KW - AMSR2
KW - ASCAT
KW - Cosmic ray neutron probes
KW - GLDAS2
KW - SMAP
KW - SMOS
KW - Soil moisture
UR - http://www.scopus.com/inward/record.url?scp=85041833859&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041833859&partnerID=8YFLogxK
U2 - 10.1109/IGARSS.2017.8127866
DO - 10.1109/IGARSS.2017.8127866
M3 - Conference contribution
AN - SCOPUS:85041833859
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 3957
EP - 3960
BT - 2017 IEEE International Geoscience and Remote Sensing Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017
Y2 - 23 July 2017 through 28 July 2017
ER -