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International Polar Year 2007–2008 - WMO

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Fig. 3.1-5. Threedimensional<br />

mapping<br />

of Hoffsjökull Ice Cap,<br />

Iceland completed<br />

as part of the CNES<br />

SPIRIT project. SPOT<br />

optical stereo data<br />

were acquired over<br />

substantial areas of<br />

Arctic ice caps and<br />

the Antarctic Ice<br />

Sheet (Korona and<br />

others, 2008a,b).<br />

(Image: CNES)<br />

Fig. 3.1-6. Winds are<br />

now being generated<br />

from Advanced Very<br />

High Resolution<br />

Radiometer (AVHRR)<br />

data collected at<br />

the NESDIS High<br />

Resolution Picture<br />

Transmission (HRPT)<br />

receiving station<br />

in Barrow, Alaska.<br />

The first winds<br />

were generated on<br />

February 16, 2008.<br />

All processing is<br />

done at the NESDIS<br />

Fairbanks Command<br />

and Data Acquisition<br />

Station in Fairbanks.<br />

Data from NOAA-16,<br />

-17, -18, and -19 are<br />

processed. The HRPT<br />

wind information<br />

is an improvement<br />

over the AVHRR<br />

Global Area Coverage<br />

(GAC) winds in<br />

that it is available<br />

much sooner (e.g.,<br />

25 minutes after<br />

acquisition rather<br />

than 2-3 hours) and<br />

at a higher spatial<br />

resolution.<br />

366<br />

IPY 20 07–20 08

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