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Gridded Melt Pond Cover Fraction on Arctic Sea Ice derived from TERRA-MODIS 8-day composite Reflectance Data
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
(2013) . Gridded Melt Pond Cover Fraction on Arctic Sea Ice derived from TERRA-MODIS 8-day composite Reflectance Data. https://gdk.gdi-de.org/geonetwork/srv/api/records/wdc-climate.de:2444135 |
INSPIRE
Identification
- File identifier
- wdc-climate.de:2444135 XML
- Hierarchy level
- collection collection
Online resource
Resource identifier
- code
- MODIS__Arctic__MPF
- code
- doi:10.1594/WDCC/MODIS__Arctic__MPF
- Metadata language
- eng; USA
Encoding
- Format
- netCDF.tar
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
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- Keywords
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- EOS-TERRA
- Keywords
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- arctic
- Keywords
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- ocean
Geographic coverage
))
Temporal reference
Temporal extent
Temporal extent
- Date ( Publication )
- 2013-05-17
Quality and validity
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
Responsible organization (s)
Contact for the resource
- Organisation name
- University of Hamburg
Metadata information
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- Organisation name
- University of Hamburg
- Organisation name
- University of Hamburg
- Date stamp
- 2013-01-07T16:42:31
- Metadata language
- eng; USA
SDS
Conformance class 1: invocable
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Endpoint URL
Technical specification
Conformance class 2: interoperable
Coordinate reference system
Quality of Service
- Name of measure
- n/a
- Measure description
- None
Access constraints
Limitation
Use constraints
Limitation
Responsible custodian
Contact for the resource
Conformance class 3: harmonized
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