ATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height Change, Version 2

Data set id:

ATL15

DOI: 10.5067/ATLAS/ATL15.002

Data Citation and Acknowledgment
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility.

Smith, B., Sutterley, T., Dickinson, S., Jelley, B. P., Felikson, D., Neumann, T. A., Fricker, H. A., Gardner, A. S., Padman, L., Markus, T., Kurtz, N., Bhardwaj, S., Hancock, D. & Lee, J. (2022). ATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height Change. (ATL15, Version 2). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL15.002. [describe subset used if applicable]. Date Accessed 12-15-2024.

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There is a more recent version of these data.
Version Summary

The changes from Versions 1 to 2 include the following:

Extend temporal coverage through cycle 14

Include one independent bias parameter for each RGT, cycle, and beam pair in the bias model

In all regions except Antarctica, use minimum error estimate for every unique crossover

Apply a time-variable ice mask, as reflected in the ice_area variable

Achieve tile-to-tile matching using linear constraint at tile edges

Decrease computation tile size to 61x61 km, and compute tiles in two stages instead of three

Overview

This data set (ATL14) and ATL15 bring the time-varying height estimates provided in ATLAS/ICESat-2 L3B Annual Land Ice Height (ATL11) into a gridded format. ATL14 is a high-resolution (100 m) digital elevation model (DEM) that provides spatially continuous gridded data of ice sheet surface height. The data can be used to initialize ice sheet models, as boundary conditions for atmospheric models, or to help with the reduction of other satellite data such as optical imagery or synthetic aperture radar (SAR). ATL15 provides coarser resolution (1 km, 10 km, 20 km, and 40 km) height-change maps at 3-month intervals, allowing for visualization of height-change patterns and calculation of integrated regional volume change.

Parameter(s):

GLACIER ELEVATION/ICE SHEET ELEVATION

Platform(s):

ICESat-2

Sensor(s):

ATLAS

Data Format(s):

netCDF-4

Temporal Coverage:

29 March 2019 to 23 March 2022

Temporal Resolution:

3 month

Spatial Resolution:

1 km
10 km
20 km
40 km

1 km
10 km
20 km
40 km

Spatial Reference System(s):

WGS 84 / Antarctic Polar Stereographic

EPSG:3031

WGS 84 / NSIDC Sea Ice Polar Stereographic North

EPSG:3413

Spatial Coverage:

N:

90

S:

59

E:

180

W:

-180

N:

-60

S:

-90

E:

180

W:

-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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This data set has been retired. There is a more recent version of these data.

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