STAR Joint Polar Satellite System Algorithms & Data Products website National Oceanographic & Atmospheric Administration website NOAA Center for Satellite Applications and Research website

STAR JPSS
Advanced Technology Microwave Sounder (ATMS)

ATMS instrument

Team Lead: Mark Liu, Ninghai Sun

Description

The Advanced Technology Microwave Sounder (ATMS) operates in conjunction with the CrIS to profile atmospheric temperature and moisture. Higher (spatial, temporal and spectral) resolution and more accurate sounding data from CrIS and ATMS will support continuing advances in data assimilation systems and NWP models to improve short- to medium-range weather forecasts.

ATMS consists of a microwave radiometer that:

  • Measures microwave radiances at 22 channels (23.8 GHz to 183.3 GHz)
  • Measures total-power, two-point external calibration

Heritage

  • ATMS is the functional-equivalent follow-on to AMSU-A (Advanced Microwave Sounding Unit) and MHS (Microwave Humidity Sounder) with improved sampling and coverage

Provides 3 EDRs with CrIS:

  • Atmospheric Vertical Moisture Profile
  • Atmospheric Vertical Temperature Profile
  • Pressure (Surface/Profile)

NOAA-20 ATMS Calibration Data Book

NOAA-20 ATMS Spectral Response Function (SRF) Dataset

S-NPP ATMS Public Spectral Response Function (SRF)


ATMS TDR/SDR Specifications


Channel Center Frequency (GHz) Total Bandpass (GHz) Accuracy (K) NEDT (K) EFOV Cross-Track (deg) EFOV Along-Track (deg) Polarization
1 23.8 0.27 1 0.7 6.3 5.2 QV
2 31.4 0.18 1 0.8 6.3 5.2 QV
3 50.3 0.18 0.75 0.9 3.3 2.2 QH
4 51.76 0.4 0.75 0.7 3.3 2.2 QH
5 52.8 0.4 0.75 0.7 3.3 2.2 QH
6 53.596±0.115 0.17 0.75 0.7 3.3 2.2 QH
7 54.4 0.4 0.75 0.7 3.3 2.2 QH
8 54.94 0.4 0.75 0.7 3.3 2.2 QH
9 55.5 0.33 0.75 0.7 3.3 2.2 QH
10 57.290344 0.33 0.75 0.75 3.3 2.2 QH
11 57.290344±0.217 0.078 0.75 1.2 3.3 2.2 QH
12 57.290344±0.3222±0.048 0.036 0.75 1.2 3.3 2.2 QH
13 57.290344±0.3222±0.022 0.016 0.75 1.5 3.3 2.2 QH
14 57.290344±0.3222±0.010 0.008 0.75 2.4 3.3 2.2 QH
15 57.290344±0.3222±0.0045 0.003 0.75 3.6 3.3 2.2 QH
16 88.2 2 1 0.5 3.3 2.2 QV
17 165.5 3 1 0.6 2.2 1.1 QH
18 183.31±7 2 1 0.8 2.2 1.1 QH
19 183.31±4.5 2 1 0.8 2.2 1.1 QH
20 183.31±3 1 1 0.8 2.2 1.1 QH
21 183.31±1.8 1 1 0.8 2.2 1.1 QH
22 183.31±1 0.5 1 0.9 2.2 1.1 QH

QV = Quasi-Vertical      QH = Quasi-Horizontal      Dynamic Range are 0-330 (K) for all channels