Microwave remote sensing for agricultural drought monitoring: Recent developments and challenges

M Vreugdenhil, I Greimeister-Pfeil… - Frontiers in …, 2022 - frontiersin.org
Agricultural droughts are extreme events which are often a result of interplays between
multiple hydro-meteorological processes. Therefore, assessing drought occurrence, extent …

Soil moisture and sea surface salinity derived from satellite-borne sensors

J Boutin, S Yueh, R Bindlish, S Chan, D Entekhabi… - Surveys in …, 2023 - Springer
The monitoring of soil moisture and sea surface salinity over the Earth has been profoundly
enhanced during the last thirteen years due to a new generation of satellite sensors. L-band …

An assessment of L-band surface soil moisture products from SMOS and SMAP in the tropical areas

H Ma, X Li, J Zeng, X Zhang, J Dong, N Chen… - Remote Sensing of …, 2023 - Elsevier
Recently, large efforts have been made to develop surface soil moisture (SSM) products
based on observations from passive microwave L-band satellites at the global scale …

True global error maps for SMAP, SMOS, and ASCAT soil moisture data based on machine learning and triple collocation analysis

H Kim, W Crow, X Li, W Wagner, S Hahn… - Remote Sensing of …, 2023 - Elsevier
Quantifying the accuracy of the satellite-based soil moisture (SM) data is important for a
number of key applications, such as: combining satellite-based SM products for long-term …

A multi-scale algorithm for the NISAR mission high-resolution soil moisture product

P Lal, G Singh, NN Das, D Entekhabi, R Lohman… - Remote Sensing of …, 2023 - Elsevier
This study proposes a multi-scale soil moisture algorithm for the upcoming NASA-ISRO SAR
(NISAR) mission to estimate high-resolution (200 [m]) soil moisture (the water content of the …

A Bayesian machine learning method to explain the error characteristics of global-scale soil moisture products

H Kim, WT Crow, W Wagner, X Li, V Lakshmi - Remote Sensing of …, 2023 - Elsevier
Estimating accurate surface soil moisture (SM) dynamics from space, and knowing the error
characteristics of these estimates, is of great importance for the application of satellite-based …

A new global C-band vegetation optical depth product from ASCAT: Description, evaluation, and inter-comparison

X Liu, JP Wigneron, W Wagner, F Frappart… - Remote Sensing of …, 2023 - Elsevier
Active microwave measurements have the potential to estimate vegetation optical depth
(VOD), an indicator related to vegetation water content and biomass. The Advanced …

[HTML][HTML] Unlocking the full potential of Sentinel-1 for flood detection in arid regions

S Garg, A Dasgupta, M Motagh, S Martinis… - Remote Sensing of …, 2024 - Elsevier
Climate change has intensified flooding in arid and semi-arid regions, presenting a major
challenge for flood monitoring and map**. While satellites, particularly Synthetic Aperture …

Urban-aware U-Net for large-scale urban flood map** using multitemporal Sentinel-1 intensity and interferometric coherence

J Zhao, Y Li, P Matgen, R Pelich… - … on Geoscience and …, 2022 - ieeexplore.ieee.org
Due to the complexity of backscattering mechanisms in built-up areas, the synthetic aperture
radar (SAR)-based map** of floodwater in urban areas remains challenging. Open areas …

[HTML][HTML] Exploring Sentinel-1 backscatter time series over the Atacama Desert (Chile) for seasonal dynamics of surface soil moisture

T Ullmann, T Jagdhuber, D Hoffmeister, SM May… - Remote Sensing of …, 2023 - Elsevier
Recent research indicates an inverse relation between Synthetic Aperture Radar (SAR)
signal and near-surface soil moisture (SM) over very dry sediments, arid to hyper-arid soils …