Mapped Data

Disclaimer

Mapped AMSU data are availble two ways:
  • with ADDE (a McIDAS data transfer facility)
  • by ftp
Click here for a description of the data format .

Products available

n Symbol Product Map Projection
1 TPW Total Precipitable Water Mercator8
2 RRB AMSU-B Rain Rate Mercator8
3 CH7 AMSU-A Channel 7 (54.9 GHz Brightness Temp., limb adjusted) Mercator8
4 CLW Cloud Liquid Water Mercator8
5 ICE Sea Ice Mercator8
6 SNO Snow Cover Mercator8
7 TB89B AMSU-B 89 GHz Brightness Temp. Mercator8
8 TB150 ASMU-B 150 GHz Brightness Temp. Mercator8
9 ICE Sea Ice North Polar Stereo
10 SNO Snow Cover North Polar Stereo
11 ICE Sea Ice South Polar Stereo
16 TPW Total Precipitable Water North Polar Stereo
17 RRB AMSU-B Rain Rate North Polar Stereo
18 CLW Cloud Liquid Water North Polar Stereo
19 TB89B AMSU-B 89 GHz Brightness Temp. North Polar Stereo
20 TB89B AMSU-B 89 GHz Brightness Temp. South Polar Stereo
21 CH7 AMSU-A Channel 7 (54.9 GHz Brightness Temp., limb adjusted) North Polar Stereo
22 THK 1000-500 hPa Thickness Mercator8
24 THK 1000-500 hPa Thickness North Polar Stereo
25 Blended TPW Averaged AMSU and SSM/I TPW Mercator16
26 Blended TPW Overlaid AMSU and SSM/I TPW (Band=1)
Time of Observation (Band=2)
Observing Satellite (Band=3)		 Mercator16

The scaling of these products onto 8-bit McIDAS display values (0-255) is as follows:

Product Symbol Physical Values Display Values
TPW 0-75 mm 176-251 (1 mm/count)
RR 0-10 mm/hr 108-148 (0.25 mm/hr/count)
10-35 mm/hr 148-198 (0.50 mm/hr/count)
RRB same as RR
CH7 203.91-228.66 K 33-132 (0.25 K/count)
228.66-235.59 K 132-231 (0.07 K/count)
CLW 0-6 mm 176-236 (0.1 mm/count)
ICE 0-100% 5-105 (1%/count)
SNO same as ICE
TB89B 70-325 K 0-255 (1 K/count)
TB150 70-325 K 0-255 (1 K/count)
THK 4330-6310 m 33-231 (10 m/count)
Note: All of the above except the brightness temperatures have the following special values: 0 = not observed; 2 = not retrieved ("flagged"); 3 = out of limits.

Click here for a description of the data format .

If you use the data, please tell us how useful they are.

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