- Dataset Availability
- 1999-06-30T00:00:00Z–2002-09-04T00:00:00Z
- Dataset Provider
- NASA NSIDC DAAC at CIRES
- Earth Engine Snippet
-
ee.Image("OSU/GIMP/2000_IMAGERY_MOSAIC") - Tags
Description
This dataset provides a complete 15 m resolution image mosaic of the Greenland ice sheet derived from Landsat 7 ETM+ and RADARSAT-1 SAR imagery from the years 1999 to 2002. The methods include a combination of image cloud masking, pan sharpening, image sampling and resizing, and image coregistration. Please see Howat, 2014 for more information regarding processing methods.
Note
- Users of GIMP DEM or GIMP 2000 Image Mosaic images may find it helpful to mask out areas outside of the Greenland coastline using the corresponding 15 m ocean mask image Greenland Ice Mapping Project (GIMP) Land Ice and Ocean Classification Mask,
- The SAR data are distributed at 20 m resolution. Data were up-sampled through bilinear interpolation to 15 m to match the resolution of Landsat band-8.
Bands
Bands
| Name | Pixel Size | Wavelength | Description |
|---|---|---|---|
B1 |
15 meters | 0.45 - 0.52 μm | Landsat 7 ETM+ blue |
B2 |
15 meters | 0.52 - 0.60 μm | Landsat 7 ETM+ green |
B3 |
15 meters | 0.63 - 0.69 μm | Landsat 7 ETM+ red |
B4 |
15 meters | 0.77 - 0.90 μm | Landsat 7 ETM+ near infrared |
B5 |
30 meters | 1.55 - 1.75 μm | Landsat 7 ETM+ shortwave infrared 1 |
B6_low_gain |
30 meters | 10.40 - 12.50 μm | Landsat 7 ETM+ low-gain thermal Infrared 1. This band has expanded dynamic range and lower radiometric resolution (sensitivity), with less saturation at high Digital Number (DN) values. Resampled from 60m to 30m. |
B6_high_gain |
30 meters | 10.40 - 12.50 μm | Landsat 7 ETM+ high-gain thermal Infrared 1. This band has higher radiometric resolution (sensitivity), although it has a more restricted dynamic range. Resampled from 60m to 30m. |
B7 |
30 meters | 2.08 - 2.35 μm | Landsat 7 ETM+ shortwave infrared 2 |
B8 |
15 meters | 0.52 - 0.90 μm | Landsat 7 ETM+ panchromatic |
B8_radarsat |
15 meters | RADARSAT-1 synthetic aperture radar amplitude imagery |
Terms of Use
Terms of Use
As a condition of using these data, you must cite the use of this data set using the given citation.
Citations
Howat, I.M., A. Negrete, B.E. Smith, 2014, The Greenland Ice Mapping Project (GIMP) land classification and surface elevation datasets, The Cryosphere, 8, 1509-1518, doi:10.5194/tc-8-1509-2014 article pdf
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.Image('OSU/GIMP/2000_IMAGERY_MOSAIC'); var greenlandImage = dataset.select(['B3', 'B2', 'B1']); var visParams = { min: 0.0, max: 255.0, }; Map.setCenter(-29.1605, 70.4, 9); Map.addLayer(greenlandImage, visParams, 'Greenland Pansharpened Image');