Search Results - "Venkataraman Lakshmi"
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Impact of Vegetation Gradient and Land Cover Conditions on Soil Moisture Retrievals From Different Frequencies and Acquisition Times of AMSR2
Published in IEEE transactions on geoscience and remote sensing (2023)“…Spaceborne remote sensing provides great potential for soil moisture (SM) retrieval and emerged as a significant data source for research in land surface…”
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2
Comparison of Normalized Difference Vegetation Index Derived from Landsat, MODIS, and AVHRR for the Mesopotamian Marshes Between 2002 and 2018
Published in Remote sensing (Basel, Switzerland) (01-05-2019)“…The Mesopotamian marshes are a group of water bodies located in southern Iraq, in the shape of a triangle, with the cities Amarah, Nasiriyah, and Basra located…”
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3
Temporal Gap‐Filling of 12‐Hourly SMAP Soil Moisture Over the CONUS Using Water Balance Budgeting
Published in Water resources research (01-12-2023)“…Temporal gaps in satellite‐based soil moisture (SM) products are a persistent issue. This study presents an entirely observation‐based method to derive…”
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4
Visualization‐driven hydrologic assessment using Gridded Precipitation Products
Published in Hydrological processes (01-10-2024)Get full text
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5
Wolf prize awarded to Rien van Genuchten
Published in Vadose zone journal (01-05-2023)Get full text
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Monitoring Dust Storms in Iraq Using Satellite Data
Published in Sensors (Basel, Switzerland) (24-08-2019)“…Dust storms can suspend large quantities of sand and cause haze in the boundary layer over local and regional scales. Iraq is one of the countries that is…”
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Water Levels in the Major Reservoirs of the Nile River Basin—A Comparison of SENTINEL with Satellite Altimetry Data
Published in Remote sensing (Basel, Switzerland) (01-09-2022)“…With the increasing number of reservoirs on the Nile River Basin, it has become important to understand the reservoir operations in the basin for coordinated…”
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Advancing remote sensing and machine learning‐driven frameworks for groundwater withdrawal estimation in Arizona: Linking land subsidence to groundwater withdrawals
Published in Hydrological processes (01-11-2022)“…Groundwater plays a crucial role in sustaining global food security but is being over‐exploited in many basins of the world. Despite its importance and finite…”
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Estimation of Flood Inundation and Depth During Hurricane Florence Using Sentinel-1 and UAVSAR Data
Published in IEEE geoscience and remote sensing letters (2022)“…We studied the temporal and spatial changes in flood water elevation and variation in the surface extent due to flooding resulting from Hurricane Florence…”
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10
Intensification in the Wettest Days to 50 Percent of Annual Precipitation (WD50) Across Europe
Published in Geophysical research letters (16-02-2024)“…Due to global warming, precipitation extremes are becoming more frequent and more severe, further exacerbating the uneven distribution of daily precipitation…”
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Observing the recent floods and drought in the Lake Victoria Basin using Earth observations and hydrological anomalies
Published in Journal of hydrology. Regional studies (01-04-2023)“…The Lake Victoria Basin, home of Africa’s largest freshwater lake, experienced extensive floods in 2019–2020 and anomalous drought conditions in early 2022…”
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12
Validation of downscaled 1‐km SMOS and SMAP soil moisture data in 2010–2021
Published in Vadose zone journal (01-03-2024)“…Soil moisture (SM) is an important component for many applications in agriculture, hydrology, meteorology, and ecology. In past decades, passive/active…”
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13
Large Uncertainty on Forest Area Change in the Early 21st Century among Widely Used Global Land Cover Datasets
Published in Remote sensing (Basel, Switzerland) (01-11-2020)“…Forests play an important role in the Earth’s system. Understanding the states and changes in global forests is vital for ecological assessments and forest…”
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14
A Spatial Downscaling Methodology for GRACE Total Water Storage Anomalies Using GPM IMERG Precipitation Estimates
Published in Remote sensing (Basel, Switzerland) (01-12-2021)“…A downscaling framework for coarse resolution Gravity Recovery and Climate Experiment (GRACE) Total Water Storage Anomaly (TWSA) data is described, exploiting…”
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15
Impact of temperature and precipitation lapse rate on hydrological modelling over Himalayan Gandak River Basin
Published in Journal of mountain science (01-12-2022)“…The hydrology of Himalayan region is influenced by temperature lapse rate (TLAPS) and precipitation lapse rate (PLAPS). Therefore, hydrological modeling…”
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Using Earth Observations to Measure Hydrological Conditions Before, During, and After Wildfires in the Feather River Watershed
Published in IEEE journal of selected topics in applied earth observations and remote sensing (01-01-2024)“…The Feather River Watershed is home to the 2018 Camp Fire (California's deadliest wildfire), the 2020 North Complex Fire, and to the 2021 Dixie Fire…”
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17
A Performance Analysis on Soil Dielectric Models Over Organic Soils in Alaska for Passive Microwave Remote Sensing of Soil Moisture
Published in Remote sensing (Basel, Switzerland) (01-03-2023)“…Passive microwave remote sensing of soil moisture (SM) requires a physically based dielectric model that quantitatively converts the volumetric SM into the…”
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18
Estimation of total water storage changes in India
Published in International journal of digital earth (03-10-2021)“…Long-term droughts significantly impact surface and groundwater resources in India, however, observed changes in major river basins have not been well…”
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A Soil Moisture and Vegetation-Based Susceptibility Mapping Approach to Wildfire Events in Greece
Published in Remote sensing (Basel, Switzerland) (01-05-2024)“…Wildfires in Mediterranean areas are becoming more frequent, and the fire season is extending toward the spring and autumn months. These alarming findings…”
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First attempt of global-scale assimilation of subdaily scale soil moisture estimates from CYGNSS and SMAP into a land surface model
Published in Environmental research letters (01-07-2021)“…Soil moisture performs a key function in the hydrologic process and understanding the global-scale water cycle. However, estimations of soil moisture taken…”
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