Results 11 to 20 of about 7,604 (218)

Historical and real-time estimation of snow depth in Eurasia based on multiple passive microwave data

open access: yesAdvances in Climate Change Research, 2023
Current snow depth datasets demonstrate large discrepancies in the spatial pattern in Eurasia, and the lagging updates of datasets do not meet the operational requirements of the meteorological service department. This study developed a dynamic retrieval
Li-Yun Dai   +4 more
doaj   +1 more source

Forest fire detection based on temporal and spatial correction of background brightness temperature using GF-4 PMI data [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Forest fires threaten human life and property, making timely and accurate fire monitoring essential for fire prevention and control efforts. Satellite remote sensing meets the requirements of large-scale, high-frequency observations for forest fire ...
P. Cheng   +6 more
doaj   +1 more source

Characterization of Bias in Fengyun-4B/AGRI Infrared Observations Using RTTOV

open access: yesRemote Sensing, 2023
As China’s first operational second-generation geostationary satellite, Fengyun-4B carries the newly developed Advanced Geostationary Radiation Imager (AGRI), which adds a low-level water vapor detection channel and an adjusted spectrum range of four ...
Zhi Zhu, Chunxiang Shi, Junxia Gu
doaj   +1 more source

Quantifying the influence of snow over sea ice morphology on L-band passive microwave satellite observations in the Southern Ocean [PDF]

open access: yesThe Cryosphere
Antarctic snow on sea ice can contain slush, snow ice, and stratified layers, complicating satellite retrieval processes for snow depth, ice thickness, and sea ice concentration. The presence of moist and brine-wetted snow alters microwave snow emissions
L. Zhou   +15 more
doaj   +1 more source

Using multi-satellite microwave remote sensing observations for retrieval of daily surface soil moisture across China

open access: yesWater Science and Engineering, 2019
The objective of this study was to retrieve daily composite soil moisture by jointly using brightness temperature observations from multiple operating satellites for near real-time application with better coverage and higher accuracy. Our approach was to
Ke Zhang   +8 more
doaj   +1 more source

Open soil surface brightness as a direct sign for soil recognition on LANDSAT images

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2013
The variability of the brightness heterogeneities of the open chernozemic soil surface on LANDSAT images obtained in different seasons and different dates of survey were investigated.
I. Yu. Savin
doaj   +1 more source

Satellite and Ground-Based Sensors for the Urban Heat Island Analysis in the City of Rome

open access: yesRemote Sensing, 2010
In this work, the trend of the Urban Heat Island (UHI) of Rome is analyzed by both ground-based weather stations and a satellite-based infrared sensor.
Roberto Fabrizi   +2 more
doaj   +1 more source

TCCL-DenseFuse: Infrared and Water Vapor Satellite Image Fusion Model Using Deep Learning

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
This article proposes an infrared and water vapor channel satellite image fusion model (TCCL-DenseFuse) based on DenseNet. The infrared channel satellite image reflects the ground and cloud top infrared radiation or the distribution of temperature, and ...
Chang-Jiang Zhang   +4 more
doaj   +1 more source

Technical Note: 30 years of HIRS data of upper tropospheric humidity [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
We use 30 years of intercalibrated HIRS (High-Resolution Infrared Radiation Sounder) data to produce a 30-year data set of upper tropospheric humidity with respect to ice (UTHi).
K. Gierens, K. Eleftheratos, L. Shi
doaj   +1 more source

Methodology of satellite microwave diagnostics of latitudinal-zonal and seasonal variations of frozen soil and sea ice

open access: yesЛëд и снег, 2015
In the frame of the work we have had investigated the utility of 6.9GHz dual polarization passive microwave data from the sensor AMSR-E for quantitative assessment of spatial and temporal variations of permafrost, seasonally frozen grounds and sea ice ...
V. V. Melentiev, I. V. Matelenok
doaj   +1 more source

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