DOI: 10.5194/tc-10-2275-2016
Scopus记录号: 2-s2.0-84990026481
论文题名: The EUMETSAT sea ice concentration climate data record
作者: Tonboe R ; T ; , Eastwood S ; , Lavergne T ; , Sørensen A ; M ; , Rathmann N ; , Dybkjær G ; , Toudal Pedersen L ; , Høyer J ; L ; , Kern S
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期: 5 起始页码: 2275
结束页码: 2290
语种: 英语
英文关键词: algorithm
; arctic environment
; brightness temperature
; concentration (composition)
; documentary source
; microwave radiometer
; Nimbus (satellite)
; radiative transfer
; satellite altimetry
; satellite data
; satellite sensor
; sea ice
英文摘要: An Arctic and Antarctic sea ice area and extent dataset has been generated by EUMETSAT's Ocean and Sea Ice Satellite Application Facility (OSISAF) using the record of microwave radiometer data from NASA's Nimbus 7 Scanning Multichannel Microwave radiometer (SMMR) and the Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager and Sounder (SSMIS) satellite sensors. The dataset covers the period from October 1978 to April 2015 and updates and further developments are planned for the next phase of the project. The methodology for computing the sea ice concentration uses (1) numerical weather prediction (NWP) data input to a radiative transfer model for reduction of the impact of weather conditions on the measured brightness temperatures; (2) dynamical algorithm tie points to mitigate trends in residual atmospheric, sea ice, and water emission characteristics and inter-sensor differences/biases; and (3) a hybrid sea ice concentration algorithm using the Bristol algorithm over ice and the Bootstrap algorithm in frequency mode over open water. A new sea ice concentration uncertainty algorithm has been developed to estimate the spatial and temporal variability in sea ice concentration retrieval accuracy. A comparison to US National Ice Center sea ice charts from the Arctic and the Antarctic shows that ice concentrations are higher in the ice charts than estimated from the radiometer data at intermediate sea ice concentrations between open water and 100% ice. The sea ice concentration climate data record is available for download at www.osi-saf.org, including documentation. © 2016 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75069
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Danish Meteorological Institute, Lyngbyvej 100, Copenhagen, Denmark; Norwegian Meteorological Institute, P.O. Box 43, Oslo, Norway; University of Copenhagen, Juliane Maries Vej 30, Copenhagen, Denmark; Integrated Climate Data Center (ICDC), University of Hamburg, Grindelberg 5, Hamburg, Germany
Recommended Citation:
Tonboe R,T,, Eastwood S,et al. The EUMETSAT sea ice concentration climate data record[J]. Cryosphere,2016-01-01,10(5)