## Polar Products
\begin{tabular}{l l} \hline
**Product Name** & **Description** & **URL** \\ \hline Landsat Image Mosaic & Covering the entire Antarctic continent at latitudes lower than & [[http://lima.usgs.gov/](http://lima.usgs.gov/)]([http://lima.usgs.gov/](http://lima.usgs.gov/)) \\ of Antarctica (LIMA) & 82.5\({}^{\circ}\)S, LIMA rigorously combines over 1000 Landsat scenes to & visualize the continent in unprecedented quantitative detail [66]. \\  & Image mosaics of Antarctica and Greenland using Landsat 8 & \\  & imagery are in planning stages. & \\ \hline MODIS Ice Sheet & A MODIS Mosaic of Antarctica (MOA, 2003-2004) is available & MOA: \\ Mosaics & through the NSIDC, imaging the ice sheet, ice shelves and & [[https://nsidc.org/data/moa/](https://nsidc.org/data/moa/)]([https://nsidc.org/data/moa/](https://nsidc.org/data/moa/)) \\  & surrounding land area at a grid scale of 125 m and estimated & [41, 42] \\  & spatial resolution of 150 m. For Greenland, a similar product & \\  & (MOG, 2005) is available at 100-m grid resolution and an & MOG: \\  & estimated spatial resolution of 100 m to 200 m. MOA includes a & [[http://nsidc.org/data/nsidc-0547](http://nsidc.org/data/nsidc-0547)]([http://nsidc.org/data/nsidc-0547](http://nsidc.org/data/nsidc-0547)) \\  & corresponding grain size map. There are plans for future MODIS & \\  & mosaics of both continents. & \\ \hline MODIS Rapid & Daily Arctic and Antarctic mosaic images are available in photo- & [[http://rapidfire.sci.gsfc.nasa.gov](http://rapidfire.sci.gsfc.nasa.gov)]([http://rapidfire.sci.gsfc.nasa.gov](http://rapidfire.sci.gsfc.nasa.gov)) \\ Response Mosaics and & like, true color from both the Terra and Aqua satellites at 4-km, & /imagery/subsets/?project=antar \\ the Rapid Ice Sheet & 2-km and 1-km resolutions. The mosaic is composed of smaller & ctica_regions, \\ Change Observatory & image tiles, which are available individually at &...?project=antarctic_risco_are \\ (RISCO) & 250-m, 500-m, 1-km, 2-km and 4-km resolutions. Smaller, & as, \\  & cropped areas of interest in the Antarctic are also generated upon &...?project=antarctic_usap_ops \\  & request, beginning 4 December 2008, throughout austral late &...?mosaic= Antarctica, and \\  & spring, summer and early fall as long as enough visible light is &...?mosaic=Arctic \\  & present to generate an image of the region. & \\ \hline NASA MEsSUREs & The MEsSURE projects function in effect as additional & [[http://nsidc.org/data/measures/](http://nsidc.org/data/measures/)]([http://nsidc.org/data/measures/](http://nsidc.org/data/measures/)) \\ (Making Earth System & processing facilities for NASA and are subject to rigorous & \\ data records for Use in & standards, developing consistent global- and continental-scale & \\ Research Environments & Earth System Data Records by supporting projects that produce & \\ program) & data using proven algorithms and input. Data sets produced & \\  & include Greenland ice velocity [142, 143, 144], Antarctic ice velocity & \\  & [145, 146, 147, 148], Antarctic grounding line position [149, 150] and & \\  & global freeze/thaw maps [151, 152]. & \\ Polar Geospatial Center & Stereo DEMs from WorldView imagery are available for areas in & [[http://www.pgc.umn.edu/elevati](http://www.pgc.umn.edu/elevati)]([http://www.pgc.umn.edu/elevati](http://www.pgc.umn.edu/elevati)) \\ DEMs & Greenland (with coverage soon to expand in both the Arctic and & on \\  & Antarctic) based upon two different processing algorithms (_i.e._, & \\  & SETSM [104] and Ames Stereo Pipeline (ASP) [102]). In & \\  & addition, airborne LiDAR DEMs are available for selected areas & \\  & in Antarctica's McMurdo Dry Valleys and Ross Island. & \\ \hline QuikSCAT Sea Ice Age & Daily maps of Arctic sea ice age, produced in a standard polar & [[http://www.scp.byu.edu/data/Qu](http://www.scp.byu.edu/data/Qu)]([http://www.scp.byu.edu/data/Qu](http://www.scp.byu.edu/data/Qu)) \\  & stereographic grid. This product is primarily designed to study & ikscat/iceage/Quikscat_iceage.h \\  & multi-year sea ice as opposed to the sea ice edge [64]. & \\ \hline QuikSCAT and SSM/I & Scatterometer and passive microwave sea ice motion vectors & [[http://www.scp.byu.edu/data/Qu](http://www.scp.byu.edu/data/Qu)]([http://www.scp.byu.edu/data/Qu](http://www.scp.byu.edu/data/Qu)) \\ Merged Sea Ice Motion & complement each other. This data product brings the two together & ikscat/IceMo/Quikscat_icemoti \\  & using wavelet techniques [153]. & on.html \\ \hline Radarsat Antarctic & Created for (_i.e._, not by using) Radarsat data processing, this & [[http://nsidc.org/data/nsidc-0082](http://nsidc.org/data/nsidc-0082)]([http://nsidc.org/data/nsidc-0082](http://nsidc.org/data/nsidc-0082)) \\ Mapping Project & DEM incorporates data from satellite radar altimetry, airborne & [121] \\ (RAMP) DEM & radar surveys, the Antarctic Digital Database (version 2) and & \\  & large-scale topographic maps from the USGS and the Australian & \\  & Antarctic Division. Data were collected between the 1940s and & \\  & present, with most collected during the 1980s and 1990s. The 1- & \\  & km, 400-m and 200-m DEM data are provided in ARC/INFO and & \\  & binary grid formats, and the 1-km and 400-m DEMs are also & \\  & available in ASCII format. & \\ \hline \end{tabular}