# Presentation: 723331

## Advanced Technology Microwave Sounder (ATMS)

***Advanced Technology Microwave Sounder****** ******(ATMS)***
***National Polar-orbiting Operational Environmental Satellite System (NPOESS) ***
***Hal Bloom***

- The Cross-track Infrared Sounder (CrIS) combined with the Advanced Technology Microwave Sounder (ATMS) globally produces atmospheric temperature, moisture and pressure profiles from space.  CrIS and ATMS (CrIMSS) are the next generation operational sensor suite selected to fly on the National Polar-orbiting Operational Environmental Satellite System (NPOESS) spacecraft.
- NPOESS replaces the two current programs -- the National Oceanic and Atmospheric Administration's  (NOAA) Polar-orbiting Operational Environmental Satellites (POES) and the Department of Defense's Defense Meteorological Satellite Program (DMSP).
**NPOESS Mission Characteristics**
- Orbit	Sun-synchronous orbit
- 	833 km altitude
- 	~ 98 degree inclination

***Hal Bloom, Integrated Program Office, 8455 Colesville Road, Suite 1450, Silver Spring, Maryland  20910, 301-427-2084 X103***

- CrIMSS will operationally produce high vertical resolution profile measurements of temperature, water vapor, and pressure.
**CrIMSS Mission Products**
- Primary	Temperature profiles
- 	Moisture profiles
- 	Pressure profiles
- 	Calibrated radiances
- Secondary 	Total ozone
- 	Sea surface temperature
- 	Cloud top parameters
- 	Precipitable water
- 	ERB products
- In addition to providing operational temperature, moisture, and pressure profiles, CrIMSS has the potential to provide other surface and atmospheric science data, including total ozone and sea surface temperature.

- ATMS provides high spatial resolution microwave data to support temperature and humidity sounding generation in cloud covered conditions.
- In addition, ATMS provides advances in technology that allow the current operational temperature and moisture microwave sounder components to be packaged in one sensor with less total weight, power, and volume.

**Combining both cross-track infrared and microwave sensors aboard the NPOESS satellite provides key Environmental Data Records (EDRs)**

**Longwave infrared image, averaged over 900-905 cm-1 bandwidth**

**CrIS Instrument  Characteristics**
**Spectral Range**
- LWIR Band	 650-1095 cm-1
- MWIR Band	1210-1750 cm-1
- SWIR Band	 2155-2550 cm-1
**Spectral Resolution**
- LWIR Band	<0.625cm-1
- MWIR Band	<1.25cm-1
- SWIR Band	<2.50cm-1
**Registration**
- Band-to-Band Co-registration  <1.4%
- FOV Jitter	<50 urad/axis
- Mapping accuracy	<1.5 km
**Field-of-View (FOV)**      3X3
- FOV Diameter (round) 	14 km
- FOV shape match 	<0.05%
**Stability**
- Radiometric <.4%LW, <.5%MW, <.65SW
- Spectral:  ILS 	 <1% of FWHM
- Spectral shift errors	 <5 ppm
**Mass****	**** **87 kg
**Power****	**** **91 W
**Data rate****	**** **1.5 mbps
**Size****	**** **70X45X47

**CrIMSS Temperature EDR**
- Horizontal reporting interval:
- 48 km at nadir  ( up to 0.5mb)
- Measurement Range 180-335K
- Vertical Resolution: 1km up to 300mb, 3km
-  300-30mb
- Measur. Uncertainty, clear conditions*:
- <0.98K up to 30mb
- Measur. Uncertainty, cloudy conditions:
- <2.3K up to 700mb
- <1.3 700mb-30mb
**CrIMSS Moisture EDR**
- Horizontal reporting interval:
- 48 km at nadir (up to 0.5mb)
- Measurement Range 0-30g/kg
- Vertical Resolution: 2km
- Measur. Uncertainty, clear conditions:  <15% up to
- 100mb
- Measur. Uncertainty, cloudy conditions: <18% up
- to 100mb
- An earlier flight of opportunity for CrIMSS will be on the NPOESS Preparatory Project (NPP) 10:30 mid morning spacecraft, in late 2005.  The CrIS is designed, developed, and manufactured by ITT Aerospace.
-                   * Clear defined as <50% cloud covered

- ATMS will eliminate scan coverage gaps near the equator that exist in the current POES by adding 3 additional scene pixels on each side of the scan pattern. (96 vs. 90 Scan positions.)  ATMS is designed, developed and manufactured by the Aerojet Corporation.