Results 11 to 20 of about 145,077 (107)

Corrected event dataset of FengYun-4A Lightning Mapping Imager (FY-4A LMI), 2019–2023 [PDF]

open access: yesEarth System Science Data
The Lightning Mapping Imager (LMI) aboard FengYun-4A (FY-4A) has accumulated substantial observational data. To address remaining systematic geolocation deviations, we propose a correction method using World Wide Lightning Location Network (WWLLN) as a ...
Y. Zhang   +12 more
doaj   +2 more sources

SARS‐CoV‐2 infection and venous thromboembolism after surgery: an international prospective cohort study

open access: yesAnaesthesia, Volume 77, Issue 1, Page 28-39, January 2022., 2022
Summary SARS‐CoV‐2 has been associated with an increased rate of venous thromboembolism in critically ill patients. Since surgical patients are already at higher risk of venous thromboembolism than general populations, this study aimed to determine if patients with peri‐operative or prior SARS‐CoV‐2 were at further increased risk of venous ...
COVIDSurg Collaborative   +16163 more
wiley   +1 more source

Repeating Earthquakes at the Edge of the Afterslip of the 2016 Ecuadorian MW7.8 Pedernales Earthquake

open access: yesJournal of Geophysical Research: Solid Earth, Volume 126, Issue 5, May 2021., 2021
Abstract Repeating earthquakes repeatedly rupture the same seismic asperity and are strongly linked to aseismic slip. Here, we study the repeating aftershocks of the April 16, 2016 MW 7.8 Pedernales earthquake in Ecuador, which generated a large amount of afterslip.
Caroline Chalumeau   +20 more
wiley   +1 more source

A Global LIS/OTD Climatology of Lightning Flash Extent Density

open access: yesJournal of Geophysical Research: Atmospheres, Volume 126, Issue 8, 27 April 2021., 2021
Abstract Previous lightning climatologies derived from Lightning Imaging Sensor (LIS) and Optical Transient Detector (OTD) total lightning measurements have quantified lightning frequency as a Flash Rate Density (FRD). This approach assumes that lightning flashes can be represented as points and quantifies the frequency of lightning centered in each ...
Michael Peterson   +2 more
wiley   +1 more source

Radiometric Performance Evaluation of FY-4A/AGRI Based on Aqua/MODIS

open access: yes, 2021
Fengyun-4A (FY-4A) is the first satellite of the Chinese second-generation geostationary orbit meteorological satellites (FY-4). The Advanced Geostationary Radiation Imager (AGRI), onboard FY-4A does not load with high-precision calibration facility in ...
Yingbo Ma   +3 more
core   +1 more source

Assessment of FY-2G, FY-4A, and Himawari-8 Atmospheric Motion Vectors over Southeast Asia and Their Assimilating Impact on the Forecasts of Tropical Cyclone PABUK

open access: yes, 2022
The spatial coverage of atmospheric motion vectors (AMVs) over Southeast Asia (SEA) is mainly covered by the Himawari-8 (HIMA-8) and FengYun-2 (FY-2) series satellites in the Global Telecommunication System (GTS). With the launch of FengYun-4A (FY-4A), a
Jie Shen   +4 more
core   +1 more source

FY-4A/AGRI Sea Surface Temperature Product and Quality Validation

open access: yes, 2023
Fengyun-4A (FY-4A) is the first satellite of China's second-generation geostationary orbit meteorological satellites. The advanced geostationary radiation imager (AGRI), a multiple channel radiation imager, is one of the primary payloads onboard FY-4A ...
Cui Peng   +3 more
core   +1 more source

Reliability Evaluation of the Joint Observation of Cloud Top Height by FY-4A and HIMAWARI-8

open access: yes, 2021
It is well known that the measurement of cloud top height (CTH) is important, and a geostationary satellite is an important measurement method. However, it is difficult for a single geostationary satellite to observe the global CTH, so joint observation ...
Qinghui Li, Xuejin Sun, Xiaolei Wang
core   +1 more source

Evaluation and Improvement of FY-4A AGRI Quantitative Precipitation Estimation for Summer Precipitation over Complex Topography of Western China

open access: yes, 2021
Satellite quantitative precipitation estimation (QPE) can make up for the insufficiency of ground observations for monitoring precipitation. Using an Advanced Geosynchronous Radiation Imager (AGRI) on the FengYun-4A (FY-4A) satellite and rain gauges (RGs)
Yanjiao Xiao   +6 more
core   +1 more source

Applicability of the Solar Radiation Products from FY-4A in Plateau Mountainous Areas of Guizhou

open access: yes, 2022
Based on data from seven observation stations of solar radiation in plateau mountainous areas of Guizhou province， this study investigated the quality of FY-4A ground solar radiation products（hereinafter referred to as FY-4A-GRSP ）and further corrected ...
Liguo DING   +4 more
core   +1 more source
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