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  MODIS__Arctic__MeltPondFraction__UHAM-CliSAP-ICDC__v02__12.5km__8day

Reflectances measured in the visible frequency range at three channels of the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Earth Observation Satellite (EOS) TERRA were used to derive the melt pond fraction on Arctic sea ice using an artificial neural network. This analysis was done on reflectances gridded onto a polar-stereographic grid tangent to the Earths' surface at 70 deg N with 500 m grid resolution. The reflectances used originate from the 8-day composite reflectances provided via https://wist.echo.nasa.gov/api/ as product: "MODIS surface Reflectance 8-Day L3 Global 500m SIN Grid V005". After gridding and flagging for clouds and other disturbances the artificial neural network was applied, providing fractions of three surface classes: 1) melt ponds, 2) sea ice and snow, and 3) open water at 500 m grid resolution. This data has been interpolated onto a similar polar-stereographic grid but with 12.5 km grid resolution.

The data set offered here comprises several data layers: the melt pond fraction, its standard deviation, the open water fraction, and the number of individual valid grid cells with 500 m grid resolution included in each 12.5 km grid cell. In addition, in three separate data layers melt pond fraction, its standard deviation, and the open water fraction are given with those grid cells (with 12.5 km grid resolution) flagged as invalid where less than 90 % of the native 500 m grid resolution data indicate clear sky conditions. Valid for all these layers is, that grid cells with an open water fraction larger than 85 % have been flagged as invalid as well.

The data set offered here is version 02 of the melt pond data set. The main difference to version 01 is a bias correction carried out to remove a positive bias in the melt pond fraction and in the open water fraction.

 
Citation proposal
Dr. Anja Rösel (University of Hamburg (IfM)) - Prof. Dr. Lars Kaleschke (Center for Earth System Research and Sustainability, University of Hamburg) - Dr. Stefan Kern (Center for Earth System Research and Sustainability, University of Hamburg). MODIS__Arctic__MeltPondFraction__UHAM-CliSAP-ICDC__v02__12.5km__8day. https://gdk.gdi-de.org/geonetwork/srv/api/records/de.dkrz.wdcc.iso3501558
 

Simple

Alternate title
MODIS__Arctic__MeltPondFraction__UHAM-CliSAP-ICDC__v02__12.5km__8day
Date ( Creation )
2015-09-15
Identifier
None
Identifier
doi:10.1594/WDCC/MODIS__Arctic__MPF_V02 / Gridded Melt Pond Cover Fraction on Arctic Sea Ice derived from TERRA-MODIS 8-day composite Reflectance Data bias corrected Version 02

  Originator

University of Hamburg (IfM) - Prof. Dr. Lars Kaleschke  
Website
https://www.ifm.uni-hamburg.de/en.html  

  Originator

Center for Earth System Research and Sustainability, University of Hamburg - Dr. Anja Rösel  
Website
http://www.cen.uni-hamburg.de/  
Other citation details
doi:10.1594/WDCC/MODIS__Arctic__MPF_V02

  Author

University of Hamburg (IfM) - Dr. Anja Rösel  
Website
https://www.ifm.uni-hamburg.de/en.html  

  Author

Center for Earth System Research and Sustainability, University of Hamburg - Prof. Dr. Lars Kaleschke  
Website
http://www.cen.uni-hamburg.de/  

  Author

Center for Earth System Research and Sustainability, University of Hamburg - Dr. Stefan Kern  
Website
http://www.cen.uni-hamburg.de/  

  Point of contact

Center for Earth System Research and Sustainability, University of Hamburg - Dr. Stefan Kern  
Website
http://www.cen.uni-hamburg.de/  
Keywords ( Theme )
  • ocean
Keywords ( Theme )
  • arctic
Keywords ( Theme )
  • EOS-TERRA
Metadata language
eng English
N
S
E
W


Begin date
2000-05-08
End date
2011-09-13
Distribution format
  • NetCDF (network Common Data Format )

Distributor

  Distributor

 
Units of distribution
Mb
Transfer size
2486
OnLine resource
http://doi.org/doi:10.1594/WDCC/MODIS__Arctic__MPF_V02  
Hierarchy level
series Series

gmd:MD_Metadata

File identifier
de.dkrz.wdcc.iso3501558   XML
Hierarchy level
series Series
Hierarchy level name
MODIS__Arctic__MPF_V02
Date stamp
2022-04-25T05:42:26
Metadata standard name
ISO 19115
Metadata standard version
ISO 19139 / DKRZ ISO Simple Profile V1.0

  Author

University of Hamburg (IfM) - Dr. Anja Rösel  
Website
https://www.ifm.uni-hamburg.de/en.html  

  Author

Center for Earth System Research and Sustainability, University of Hamburg - Prof. Dr. Lars Kaleschke  
Website
http://www.cen.uni-hamburg.de/  

  Author

Center for Earth System Research and Sustainability, University of Hamburg - Dr. Stefan Kern  
Website
http://www.cen.uni-hamburg.de/  

  Point of contact

Center for Earth System Research and Sustainability, University of Hamburg - Dr. Stefan Kern  
Website
http://www.cen.uni-hamburg.de/  

  Originator

University of Hamburg (IfM) - Prof. Dr. Lars Kaleschke  
Website
https://www.ifm.uni-hamburg.de/en.html  

  Originator

Center for Earth System Research and Sustainability, University of Hamburg - Dr. Anja Rösel  
Website
http://www.cen.uni-hamburg.de/  
Dataset URI
http://doi.org/doi:10.1594/WDCC/MODIS__Arctic__MPF_V02
 
 

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