Results 101 to 110 of about 35,504 (247)

Passive Microwave Melt Onset Retrieval Based on a Variable Threshold: Assessment in the Canadian Arctic Archipelago

open access: yesRemote Sensing, 2019
The Canadian Arctic Archipelago (CAA) presents unique challenges to the determination of melt onset (MO) using remote sensing data. High spatial resolution data is required to discern melt onset among the islands and narrow waterways of the region ...
Stephen Marshall   +2 more
doaj   +1 more source

Forest disturbance and recovery: A general review in the context of spaceborne remote sensing of impacts on aboveground biomass and canopy structure [PDF]

open access: yes, 2009
Abrupt forest disturbances generating gaps \u3e0.001 km2 impact roughly 0.4–0.7 million km2a−1. Fire, windstorms, logging, and shifting cultivation are dominant disturbances; minor contributors are land conversion, flooding, landslides, and avalanches ...
Chambers, Jeffrey Q   +5 more
core   +3 more sources

The Influence of Sea Ice and Ice Mélange on Outlet Glacier Dynamics in the Arctic and Antarctic: Recent Progress and Future Challenges

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Sea ice is situated close to the termini of many outlet glaciers in the Arctic and Antarctic and has the potential to influence their dynamics and, therefore, their contribution to sea level rise. However, the nature, prevalence, and ice‐dynamic significance of sea ice‐glacier interactions remains subject to several open questions.
Katherine A. Deakin   +3 more
wiley   +1 more source

Simulation of Active and Passive Satellite Observations and Estimation of Vegetation Optical Depth Across Different Frequencies Based on a Theoretical Scattering Model in the Tibetan Grassland

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Multifrequency active and passive microwave remote sensing can deliver complementary insights for surface observations. In this study, we aim to simultaneously reproduce these observations and analyze their covariations, as well as to explore the impacts
Xiaojing Bai   +3 more
doaj   +1 more source

High-Resolution Mapping of Freeze/Thaw Status in China via Fusion of MODIS and AMSR2 Data

open access: yesRemote Sensing, 2017
Transition of freeze/thaw (F/T) affects land-atmospheric interactions and other biospheric dynamics. Global F/T statuses are normally monitored using microwave remote sensing, but at coarse resolutions (e.g., 25 km).
Tongxi Hu   +6 more
doaj   +1 more source

Snow Depth on Arctic Sea Ice Retrieval Using a Synergy of Sentinel‐3's Active and Passive Microwave Instruments

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Snow depth remains one of the largest sources of uncertainty in satellite‐derived sea ice thickness (SIT). Here, we introduce the novel Nadir Radiometer and Radar Synergy (NaRRS) method that combines data from Sentinel‐3's Microwave Radiometer (MWR) and Synthetic Aperture Radar Altimeter (SRAL) to retrieve Arctic snow depth on sea ice.
Connor Nelson   +8 more
wiley   +1 more source

AMSR2 Soil Moisture Downscaling Using Temperature and Vegetation Data

open access: yesRemote Sensing, 2018
Soil moisture (SM) applications in terrestrial hydrology require higher spatial resolution soil moisture products than those provided by passive microwave remote sensing instruments (grid resolution of 9 km or larger).
Bin Fang   +3 more
doaj   +1 more source

Design, performance evaluation, and investigation of the theoretical capabilities of the NASA Millimeter-wave Imaging Radiometer (MIR) [PDF]

open access: yes
The development of techniques for passive microwave retrieval of water vapor and precipitation parameters using millimeter- and sub-millimeter wavelength channels is reviewed.
Gasiewski, Albin J., Jackson, D. M.
core   +1 more source

A First Attempt at Reconstructing FengYun‐4B Stratified Precipitable Water Using GNSS

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Layer Precipitable Water (LPW) characterizes the vertical structure of atmospheric moisture and is essential for accurate weather forecasts. China's FY‐4B satellite delivers near‐real‐time LPW products, but is constrained by large uncertainties.
Yuhao Wu   +4 more
wiley   +1 more source

Investigation of passive atmospheric sounding using millimeter and submillimeter wavelength channels [PDF]

open access: yes
Activities within the period from July 1, 1992 through December 31, 1992 by Georgia Tech researchers in millimeter and submillimeter wavelength tropospheric remote sensing have been centered around the calibration of the Millimeter-wave Imaging ...
Adelberg, L. K.   +3 more
core   +4 more sources

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