TY - GEN
T1 - Assessment of Soil Moisture Retrievals over a Mexican Agricultural Area Using Brightness Temperature of RSIR Products
AU - Hernandez-Sanchez, Juan Carlos
AU - Monsivais-Huertero, Alejandro
AU - Judge, Jasmeet
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The need to remotely obtain Soil Moisture (SM) measurements has been a challenge in recent years. Worldwide, this generates a scientific interest on remote sensing field. As a result, there are many techniques to retrieve SM from remote observations of different sensors, for example, mission SMOS can retrieve soil moisture from Brightness Temperature (TB) measurements at coarse spatial resolution. However, these resolutions for agricultural purposes are not suitable, for this reason, we are focused on the assessment of SM retrievals from the improvement of TB products over agricultural fields with similar weather conditions and crop field characteristics. Initially, we obtained TB at 9km and 3km in H and V polarization from NSIDC over agricultural fields in Mexico. Later, we computed retrieval model to retrieve SM. Finally, we obtained RMSD equal to 0.1 and low Pearson correlation coefficients, such as 0.068 in 2018 at 3 km (the lowest value) and 0.5711 in 2019 at 9 km (the highest value). In addition, BIAS and ubRMSD are similar to each other. Nevertheless, they showed poor performance in the Huamantla crop fields. But this does not limit the application to other regions of Latin America.
AB - The need to remotely obtain Soil Moisture (SM) measurements has been a challenge in recent years. Worldwide, this generates a scientific interest on remote sensing field. As a result, there are many techniques to retrieve SM from remote observations of different sensors, for example, mission SMOS can retrieve soil moisture from Brightness Temperature (TB) measurements at coarse spatial resolution. However, these resolutions for agricultural purposes are not suitable, for this reason, we are focused on the assessment of SM retrievals from the improvement of TB products over agricultural fields with similar weather conditions and crop field characteristics. Initially, we obtained TB at 9km and 3km in H and V polarization from NSIDC over agricultural fields in Mexico. Later, we computed retrieval model to retrieve SM. Finally, we obtained RMSD equal to 0.1 and low Pearson correlation coefficients, such as 0.068 in 2018 at 3 km (the lowest value) and 0.5711 in 2019 at 9 km (the highest value). In addition, BIAS and ubRMSD are similar to each other. Nevertheless, they showed poor performance in the Huamantla crop fields. But this does not limit the application to other regions of Latin America.
KW - L-band
KW - SMAP
KW - Soil Moisture
KW - rSIR
KW - radiometer
UR - http://www.scopus.com/inward/record.url?scp=85140414283&partnerID=8YFLogxK
U2 - 10.1109/IGARSS46834.2022.9883459
DO - 10.1109/IGARSS46834.2022.9883459
M3 - Contribución a la conferencia
AN - SCOPUS:85140414283
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 5121
EP - 5124
BT - IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022
Y2 - 17 July 2022 through 22 July 2022
ER -