AMPS Grids (as of 12 UTC 30 May 2013)

Map Projection

• Polar Stereographic projection; projection centered at S. Pole
• Orientation Longitude: 180.0° E
• True Latitude: 71.0° S

Grid 1 (30-km Outer grid)

WRF staggered grid:
dimensions: 330 x 436
lower left lat/lon (i.e., lower left corner of lower left mass grid cell): -24.58405 N, 38.32245 E
upper right lat/lon (i.e., upper right corner of upper right mass grid cell): -21.69593 N, -144.05524 E
WRF mass grid:
dimensions: 329 x 435
lower left lat/lon (center of lower left mass grid cell): -24.72209 N, 38.30463 E
upper right lat/lon (center of upper right mass grid cell): -21.82868 N, -144.07805 E

Color-fill terrain, showing subgrids	Color-fill terrain, no subgrids	Blank map, showing subgrids	Blank map, no subgrids
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Grid 2 (10-km Continental grid)

WRF staggered grid:
dimensions: 667 x 628
lower left lat/lon (i.e., lower left corner of lower left mass grid cell): -50.74364 N, 49.78339 E
upper right lat/lon (i.e., upper right corner of upper right mass grid cell): -48.14365 N, -136.12187 E
WRF mass grid:
dimensions: 666 x 627
lower left lat/lon (i.e., center of lower left mass grid cell): -50.80146 N, 49.79108 E
upper right lat/lon (i.e., center of upper right mass grid cell): -48.20068 N, -136.12355 E

Color-fill terrain, showing subgrids	Color-fill terrain, no subgrids	Blank map, showing subgrids	Blank map, no subgrids
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PostScript version	PostScript version	PostScript version	PostScript version
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Grid 3 (3.3-km Ross Sea grid)

WRF staggered grid:
dimensions: 538 x 826
lower left lat/lon (i.e., lower left corner of lower left mass grid cell): -80.55930 N, 59.86377 E
upper right lat/lon (i.e., upper right corner of upper right mass grid cell): -67.96906 N,-157.96695 E
WRF mass grid:
dimensions: 537 x 825
lower left lat/lon (i.e., center of lower left mass grid cell): -80.58021 N, 59.89771 E
upper right lat/lon (i.e., center of upper right mass grid cell): -67.98839 N, -157.98880 E

Color-fill terrain, showing subgrids	Color-fill terrain, no subgrids	Blank map, showing subgrids	Blank map, no subgrids
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PostScript version	PostScript version	PostScript version	PostScript version
NCAR-Graphics gmeta file	NCAR-Graphics gmeta file	NCAR-Graphics gmeta file	NCAR-Graphics gmeta file

Grid 5 (1.1-km Ross Island grid):

WRF staggered grid:
dimensions: 613 x 718
lower left lat/lon (i.e., lower left corner of lower left mass grid cell): -80.31425 N 142.78857 E
upper right lat/lon (i.e., upper right corner of upper right mass grid cell): -74.98219 N -178.42139 E
WRF mass grid:
dimensions: 612 x 717
lower-left lat/lon (i.e., center of lower left mass grid cell): -80.31326 N 142.83105 E
upper-right lat/lon (i.e., center of upper right mass grid cell): -74.98739 N -178.44035 E

Color-fill terrain	Blank map
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NCAR-Graphics gmeta file	NCAR-Graphics gmeta file

Grid 6 (3.3-km Antarctic Peninsula grid):

WRF staggered grid:
dimensions: 520 x 454
lower left lat/lon (i.e., lower left corner of lower left mass grid cell): -70.35059 N, -31.30124 E
upper right lat/lon (i.e., upper right corner of upper right mass grid cell): -63.98048 N, -83.50766 E
WRF mass grid:
dimensions: 519 x 453
lower-left lat/lon (i.e., center of lower left mass grid cell): -70.34448 N, -31.36240 E
upper-right lat/lon (i.e., center of upper right mass grid cell): -63.99334 N, -83.47067 E

Color-fill terrain	Blank map
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PostScript version	PostScript version
NCAR-Graphics gmeta file	NCAR-Graphics gmeta file