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MODIS__Arctic__MeltPondFraction__UHAM-CliSAP-ICDC__v01__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 only for those grid cells (with 12.5 km grid resolution) where more than 90 % of the native 500 m grid resolution data indicate clear sky conditions. Grid cells with an open water fraction larger than 85 % have been generally flagged as invalid. The data set is updated annually.
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Citation proposal
Dr. Anja Rösel (University of Hamburg (IfM)) - Prof. Dr. Lars Kaleschke (University of Hamburg / KlimaCampus) - Dr. Stefan Kern (University of Hamburg / KlimaCampus). MODIS__Arctic__MeltPondFraction__UHAM-CliSAP-ICDC__v01__12.5km__8day. https://gdk.gdi-de.org/geonetwork/srv/api/records/de.dkrz.wdcc.iso2444135 |
INSPIRE
Identification
- File identifier
- de.dkrz.wdcc.iso2444135 XML
- Hierarchy level
- series Series
Online resource
Resource identifier
- code
- None
- Metadata language
- eng English
Encoding
- Format
- netCDF.tar
- Version
- tarball of network Common Data Format files
Projection
Classification of data and services
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Keywords
Other keywords
- Keywords ( Theme )
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- ocean
- Keywords ( Theme )
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- arctic
- Keywords ( Theme )
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- EOS-TERRA
Geographic coverage
))
Temporal reference
Temporal extent
- Begin
- 2000-05-08
- End
- 2011-09-13
Temporal extent
- Date ( Creation )
- 2013-01-07
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Conformity
Conformity
Conformity
Conformity
Conformity
Conformity
Restrictions on access and use
Restrictions on access and use
Responsible organization (s)
Contact for the resource
- Organisation name
- University of Hamburg (IfM)
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg / KlimaCampus
Responsible organization (s)
Contact for the resource
- Organisation name
- University of Hamburg (IfM)
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg / KlimaCampus
Metadata information
Contact for the metadata
- Organisation name
- University of Hamburg (IfM)
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg / KlimaCampus
- Organisation name
- University of Hamburg (IfM)
- Organisation name
- University of Hamburg / KlimaCampus
- Date stamp
- 2022-04-25T05:17:51
SDS
Conformance class 1: invocable
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Conformance class 2: interoperable
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Limitation
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Conformance class 3: harmonized
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