![OSU/GIMP/2000_IMAGERY_MOSAIC](https://developers.google.com/earth-engine/datasets/images/OSU/OSU_GIMP_2000_IMAGERY_MOSAIC_sample.png)

Dataset Availability
:   1999-06-30T00:00:00Z--2002-09-04T00:00:00Z

Dataset Producer
:


    [NASA NSIDC DAAC at CIRES](https://doi.org/10.5067/4RNTRRE4JCYD)

Tags
:
    [arctic](https://developers.google.com/earth-engine/datasets/tags/arctic) [gimp](https://developers.google.com/earth-engine/datasets/tags/gimp) [greenland](https://developers.google.com/earth-engine/datasets/tags/greenland) [imagery](https://developers.google.com/earth-engine/datasets/tags/imagery) [nasa](https://developers.google.com/earth-engine/datasets/tags/nasa) [polar](https://developers.google.com/earth-engine/datasets/tags/polar) [satellite-imagery](https://developers.google.com/earth-engine/datasets/tags/satellite-imagery) radarsat-1

#### 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.

[General documentation](https://doi.org/10.5067/4RNTRRE4JCYD)

### Bands

**Bands**

Pixel size: varies

| 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 | None | 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

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](https://doi.org/10.5194/tc-8-1509-2014)
  [article pdf](https://www.the-cryosphere.net/8/1509/2014/tc-8-1509-2014.pdf)

### DOIs

- <https://doi.org/10.5067/4RNTRRE4JCYD>

### Explore with Earth Engine

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### Code Editor (JavaScript)

```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');
```
[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/OSU/OSU_GIMP_2000_IMAGERY_MOSAIC) [2000 Greenland Mosaic - Greenland Ice Mapping Project (GIMP)](https://developers.google.com/earth-engine/datasets/catalog/OSU_GIMP_2000_IMAGERY_MOSAIC) 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 ... OSU/GIMP/2000_IMAGERY_MOSAIC, arctic,gimp,greenland,imagery,nasa,polar,satellite-imagery 1999-06-30T00:00:00Z/2002-09-04T00:00:00Z 58.79601275381146 -89.3211593425295 83.95386175580668 7.555941634834938 Google Earth Engine https://developers.google.com/earth-engine/datasets

- [https://doi.org/10.5067/4RNTRRE4JCYD](https://doi.org/https://doi.org/10.5067/4RNTRRE4JCYD)
- [https://doi.org/10.5067/4RNTRRE4JCYD](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/OSU_GIMP_2000_IMAGERY_MOSAIC)