Results 51 to 60 of about 1,156 (191)

Evaluation of SMAP, SMOS, and AMSR2 Soil Moisture Products Based on Distributed Ground Observation Network in Cold and Arid Regions of China

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Long-term surface soil moisture (SM) data are increasingly needed in water budget and energy balance analysis of watersheds. The performance of nine remotely sensed SM products from Advanced Microwave Scanning Radiometer 2 (AMSR2), Soil Moisture and ...
Zengyan Wang   +5 more
doaj   +1 more source

Sensitivity of Tropical Cyclone Forecasts to the Loss of Low Earth Orbit Satellite Observations

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Tropical cyclones are among the most destructive natural hazards, impacting millions of people worldwide each year. Accurate and timely forecasts are therefore essential for effective preparedness and risk mitigation. Forecast skill depends on both the performance of numerical weather prediction models and the observations assimilated into the
Isaac Moradi   +3 more
wiley   +1 more source

A Preliminary Study toward Consistent Soil Moisture from AMSR2

open access: yes, 2015
A preliminary study toward consistent soil moisture products from the Advanced Microwave Scanning Radiometer 2 (AMSR2) is presented. Its predecessor, the Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E), has providedEarth ...
Parinussa, Robert M.   +9 more
core   +1 more source

Satellite Soil Moisture Validation Using Hydrological SWAT Model: A Case Study of Puerto Rico, USA

open access: yesHydrology, 2017
Soil moisture is placed at the interface between land and atmosphere which influences water and energy flux. However, soil moisture information has a significant importance in hydrological modelling and environmental processes.
Aditya P. Nilawar   +4 more
doaj   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

open access: yesEarth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones   +21 more
wiley   +1 more source

On the synergy of SMAP, AMSR2 AND SENTINEL-1 for retrieving soil moisture

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2018
An algorithm for retrieving soil moisture content (SMC) from synergic use of both active and passive microwave acquisitions is presented. The algorithm takes advantage of the integration of microwave data from SMAP, Sentinel-1 and AMSR2 for overcoming the SMAP radar failure and obtaining a SMC product at enhanced resolution (0.1° × 0.1°) and improved ...
Santi E   +5 more
openaire   +3 more sources

The Evaluation of Single-Sensor Surface Soil Moisture Anomalies over the Mainland of the People’s Republic of China

open access: yesRemote Sensing, 2017
In recent years, different space agencies have launched satellite missions that carry passive microwave instruments on-board that can measure surface soil moisture.
Robert M. Parinussa   +6 more
doaj   +1 more source

Evaluation of Sea Ice Concentration Data Using Dual-Polarized Ratio Algorithm in Comparison With Other Satellite Passive Microwave Sea Ice Concentration Data Sets and Ship-Based Visual Observations

open access: yesFrontiers in Environmental Science, 2022
The dual-polarized ratio (DPR) algorithm is a new algorithm that enable calculation of Arctic sea ice concentration from the 36.5-GHz channel of the sensor Advanced Microwave Scanning Radiometer for EOS/Advanced Microwave Scanning Radiometer 2 (AMSR-E ...
Fangyi Zong   +6 more
doaj   +1 more source

Tracking Water Dynamics of a Temperate Forest Under Drought and Non‐Drought Conditions Using Active and Passive Microwave and Optical Remote Sensing

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Water status, water dynamics, and ecohydrological resilience of a protected German beech forest during the 2018–2020 multi‐year drought are assessed using over six years of multi‐frequency remote sensing data, integrating active, passive, and optical sensors with varying canopy penetration depths, highlighting the importance of monitoring ...
Florian M. Hellwig   +10 more
wiley   +1 more source

AMSR2 위성 자료를 활용한 한반도 주변해역 해수면온도 오차 특성 [PDF]

open access: yes, 2017
학위논문 (석사)-- 서울대학교 대학원 : 과학교육과, 2017. 2. 박경애.인공위성 자료를 활용한 해수면온도 산출은 현장 관측 자료의 시·공간적인 한계를 극복할 수 있는 가장 효과적인 방법으로, 적외 영역과 마이크로파 영역으로부터 산출되고 있다. 구름과 대기의 영향을 크게 받는 적외 영역에 비해 마이크로파 영역에서는 구름의 존재와 상관없이 해수면온도 관측이 가능하여 자료 획득률이 높다는 장점을 가진다.
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