Results 11 to 20 of about 290 (136)
Geo-spatial Information ScienceThe microwave-derived vegetation optical depth (VOD) products were used to monitor aboveground biomass (AGB) at regional to global scales, but the ability of VOD to monitor AGB in China is uncertain.
Zhongbing Chang +14 more
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Canadian Journal of Remote SensingMicrowave remote sensing can be used to estimate vegetation optical depth (VOD), a measure of the attenuation of microwave radiation by vegetation. VOD is tightly linked to vegetation properties such as water content and above-ground biomass.
Azza Gorrab +8 more
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Dominant Role of Soil Moisture Regulating Vegetation Water Content During Flash Drought Evolution
Geophysical Research LettersIncreasing flash drought exposure raises global concerns regarding terrestrial ecosystem responses. We investigate the effect of concurrent and past rootzone soil moisture (SM) and vapor pressure deficit (VPD) on vegetation optical depth (VOD), a ...
Amitesh Gupta +3 more
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Assessing the sensitivity of multi-frequency passive microwave vegetation optical depth to vegetation properties [PDF]
Biogeosciences, 2023 Vegetation attenuates the microwave emission from the land surface. The strength of this attenuation is quantified in models in terms of the parameter vegetation optical depth (VOD) and is influenced by the vegetation mass, structure, water content, and ...
L. Schmidt +9 more
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Assimilation of vegetation optical depth retrievals from passive microwave radiometry [PDF]
Hydrology and Earth System Sciences, 2020 Vegetation optical depth (VOD) retrievals from passive microwave sensors provide analog estimates of above-ground canopy biomass. This study presents the development and analysis of assimilating VOD retrievals from X-, C-, and L-band passive microwave ...
S. V. Kumar +4 more
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Estimating leaf moisture content at global scale from passive microwave satellite observations of vegetation optical depth [PDF]
Hydrology and Earth System Sciences, 2023 The moisture content of vegetation canopies controls various ecosystem processes such as plant productivity, transpiration, mortality, and flammability. Leaf moisture content (here defined as the ratio of leaf water mass to leaf dry biomass, or live-fuel
M. Forkel +5 more
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Monitoring post-fire recovery of various vegetation biomes using multi-wavelength satellite remote sensing [PDF]
Biogeosciences, 2022 Anthropogenic climate change is now considered to be one of the main factors causing an increase in both the frequency and severity of wildfires. These fires are prone to release substantial quantities of CO2 into the atmosphere and to endanger natural ...
E. Bousquet +4 more
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Remote Sensing, 2021 The detection of global land change via satellite observation is a major challenge in improving the understanding of global environmental change. In this study, we develop a new vegetation index which can be used as a proxy for the fractions of tree ...
Hideharu Nara, Yohei Sawada
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Monitoring vegetation condition using microwave remote sensing: the standardized vegetation optical depth index (SVODI) [PDF]
Biogeosciences, 2022 Vegetation conditions can be monitored on a global scale using remote sensing observations in various wavelength domains. In the microwave domain, data from various spaceborne microwave missions are available from the late 1970s onwards.
L. Moesinger +5 more
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Interannual Variations of Vegetation Optical Depth are Due to Both Water Stress and Biomass Changes
Geophysical Research Letters, 2021 Microwave radiometry can be used to measure vegetation water content through vegetation optical depth (VOD). VOD can vary due to changes in water stress alone, but also scales with aboveground biomass.
Alexandra G. Konings +4 more
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