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pro vyhledávání: '"Alexander Marshak"'
Publikováno v:
Frontiers in Remote Sensing, Vol 5 (2024)
The Deep Space Climate Observatory (DSCOVR) spacecraft drifts about the Lagrangian point ≈ 1.4 − 1.6 × 106 km from Earth, where its Earth Polychromatic Imaging Camera (EPIC) observes the entire sunlit face of Earth every 1–2 h. In an attempt t
Externí odkaz:
https://doaj.org/article/ce006fc8c6bb43e4986251fa9fad8867
Autor:
Tamás Várnai, Alexander Marshak
Publikováno v:
Remote Sensing, Vol 16, Iss 18, p 3388 (2024)
This paper explores a new approach to improving satellite measurements of cloud optical thickness and droplet size by considering the radiative impacts of horizontal heterogeneity in boundary-layer cumulus clouds. In contrast to the usual bottom-up a
Externí odkaz:
https://doaj.org/article/0a68c28a240f42519a9f192c47c0a44a
Publikováno v:
Frontiers in Remote Sensing, Vol 5 (2024)
Current operational satellite retrievals of cloud optical and microphysical properties go back to the Nakajima-King technique developed at the end of the 1980 s. This technique is based on library calculations for plane-parallel homogeneous clouds. I
Externí odkaz:
https://doaj.org/article/ddbf0057e2b244c49cd48f0f7254c598
Publikováno v:
Frontiers in Remote Sensing, Vol 4 (2024)
Retrieval of aerosol properties near clouds from passive remote sensing is challenging. Sunlight scattered by clouds into nearby clear regions can effectively enhance the clear area reflectance. These cloud 3D radiative effects may lead to large bias
Externí odkaz:
https://doaj.org/article/47bf8ab76a3147338de3e6efa6d98b71
Autor:
Guoyong Wen, Alexander Marshak
Publikováno v:
Frontiers in Remote Sensing, Vol 4 (2023)
The Earth Polychromatic Imaging Camera (EPIC) on the Deep Space Climate Observatory (DSCOVR) routinely captures reflected radiation from the whole sunlit side of the Earth in the near backward direction to monitor the changing planet. The instrument
Externí odkaz:
https://doaj.org/article/c394148c679b4025b3af0e54c8500f6d
Publikováno v:
Frontiers in Remote Sensing, Vol 3 (2022)
The annular solar eclipse on 21 June 2020 passed over desert areas (parts of Central and Eastern Africa, the southern Arabian Peninsula), partly cloudy regions (parts of South Asia and the Himalayas), and the mostly cloudy region in East Asia. Moving
Externí odkaz:
https://doaj.org/article/787f3ab0f0ce403aa07d82a85387a1c8
Publikováno v:
Frontiers in Remote Sensing, Vol 2 (2022)
Thorough comparison to observations is key to developing a credible climate model forecasting capability. Deep Space Climate Observatory (DSCOVR) measurements of Earth’s reflected solar and emitted thermal radiation provide a unique observational p
Externí odkaz:
https://doaj.org/article/932b071ea27f49df9502db0b9ec3b741
Publikováno v:
Frontiers in Remote Sensing, Vol 3 (2022)
Deep Space Climate Observatory (DSCOVR) measurements of Earth’s reflected solar and emitted thermal radiation permit a unique model/data comparison perspective that is not readily available from other satellite data. The key factor is the unique Li
Externí odkaz:
https://doaj.org/article/fe8830f5829f4c3eaccc49819678d2ca
Publikováno v:
Frontiers in Remote Sensing, Vol 3 (2022)
We argue that the Earth Polychromatic Imaging Camera (EPIC) on the Deep Space Climate ObserVatoRy (DSCOVR) platform has blazed new pathways in observational technology, starting with its ∼ 1.5 × 106 km stand-off distance, but also in remote sensin
Externí odkaz:
https://doaj.org/article/176d4df8c94e4b38af1a069bc084592e
Publikováno v:
Frontiers in Remote Sensing, Vol 2 (2021)
Earth Polychromatic Imaging Camera occupies a unique point of view for an Earth imager by being located approximately 1.5 million km from the planet at Earth-Sun Lagrange point, L1. This creates a number of unique challenges in geolocation, some of w
Externí odkaz:
https://doaj.org/article/cd0e3af7cb804b3b990c9f5e84deeee2