Zobrazeno 1 - 10
of 4 024
pro vyhledávání: '"passive microwave"'
Autor:
Bo Wen, Tingbin Zhang, Xiaobing Zhou, Dongmei Chen, Guihua Yi, Jingji Li, Xiaojuan Bie, Jiao Hu, Xian Liu
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 25-37 (2025)
The freeze-thaw cycle of near-surface soils significantly affects energy and water exchanges between the atmosphere and land surface. Passive microwave remote sensing is commonly used to observe the freeze-thaw state. However, existing algorithms fac
Externí odkaz:
https://doaj.org/article/5d0c0e130bec4e74870a23d1d72f444e
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 135, Iss , Pp 104290- (2024)
Surface soil moisture (SM) plays an important role in water and energy cycles. Passive microwave remote sensing observation has become the main means of obtaining large-scale surface SM. Due to its low spatial resolution, the spatial downscaling is r
Externí odkaz:
https://doaj.org/article/8dafc3719679479aaf8b47d408d5ff35
Publikováno v:
GIScience & Remote Sensing, Vol 61, Iss 1 (2024)
The soil moisture products derived from the SMOS (Soil Moisture and Ocean Salinity) and SMAP (Soil Moisture Active Passive) missions have garnered widespread adoption in drought surveillance, meteorological/climatic forecasting, and hydrological inve
Externí odkaz:
https://doaj.org/article/35050c8f6e5645f3baa1eb7d54eb2319
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
Rapid decline in Arctic summer sea ice cover has brought new opportunities for shipping and resource exploitation in the Arctic, and accurate determination of summer sea ice conditions has become increasingly important. Knowledge of sea ice velocity
Externí odkaz:
https://doaj.org/article/21e2e626c4d845a5bb9f39ba9f9edd42
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
Snow depth (SD) plays a critical role in evaluating snow disasters, simulating hydrological processes and maintaining surface radiation balance etc. This study presents the first comprehensive evaluation of three SD products—SD-AMSR2, SD-Globsnow,
Externí odkaz:
https://doaj.org/article/6a35276079474ea8b69f5de530c9e30a
Autor:
François Gibon, Arnaud Mialon, Philippe Richaume, Nemesio Rodríguez-Fernández, Daniel Aberer, Alexander Boresch, Raffaele Crapolicchio, Wouter Dorigo, Alexander Gruber, Irene Himmelbauer, Wolfgang Preimesberger, Roberto Sabia, Pietro Stradiotti, Monika Tercjak, Yann H. Kerr
Publikováno v:
Science of Remote Sensing, Vol 10, Iss , Pp 100147- (2024)
This study attempts to derive the uncertainty of the soil moisture estimation from passive microwave satellite mission at global scale. To do so, the approach is based on the sensitivity of the Soil Moisture and Ocean Salinity (SMOS) soil moisture re
Externí odkaz:
https://doaj.org/article/ef657c333af54947b4a0fa23b86b5157
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
Applying ICESat-2 and CryoSat-2 freeboards, the Arctic snow depth (ISCS) was obtained from October 2018 to April 2022. The results were assessed using Operation Ice Bridge (OIB) and Multidisciplinary Drifting Observatory for the Study of Arctic Clima
Externí odkaz:
https://doaj.org/article/b3b67af8c5e94e10a75681a61753cc58
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
ABSTRACTInformation on Arctic sea-ice motion in summer is critical for operational sea-ice monitoring and prediction and commercial navigation. Affected by the melting of the sea-ice surface, the accuracy and spatial coverage of the sea-ice velocity
Externí odkaz:
https://doaj.org/article/19b0f95419b04ba0b568ab8fbbb97be9
Publikováno v:
GIScience & Remote Sensing, Vol 61, Iss 1 (2024)
Located at the easternmost sector of the Last Ice Area (LIA) with the oldest and thickest sea ice, the north of Greenland has witnessed some unprecedented polynyas since 2018, receiving considerable attention. Sea ice concentration (SIC) derived from
Externí odkaz:
https://doaj.org/article/fbfe6f6e9e43492a93f40c7217735914
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
ABSTRACTPassive microwave (PM) remote sensing have been extensively used for snow depth (SD) estimation. However, current SD products from traditional PM data fail to capture the differentiation in mountainous and complex terrains with coarse resolut
Externí odkaz:
https://doaj.org/article/8d96848db44c49ffa054ad6381104ccb