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ICVS Intersensor Comparison :

ATMS

6 Jan 2026 - 20:35 ET / 01:35 UTC

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Select JPSS Platform

NOAA-21 NOAA-20 Suomi NPP

Select Comparison Data Source

NOAA-21 ATMS NOAA-20 ATMS Suomi NPP ATMS MetOp-B AMSU-A/MHS MetOp-C AMSU-A/MHS NOAA-19 AMSU-A/MHS CRTM ATMS using ECMWF inputs CRTM ATMS using RO inputs

Select Data Type to Display

Direct Comparison

32-Day Mean Bias (Map) 32-Day Mean Bias (Time Series) Daily Global Bias Map Monthly Accumulated Global Bias Map Monthly Global Bias Histogram O-B Monthly-Mean Global Bias Time Series O-B Monthly-Mean Latitudinal Mean Bias O-B Daily Mean Global Bias Time Series O-B Daily Mean Global Bias Map

Simultaneous Nadir Overpass (SNO)

AMSU & ATMS SNO

Double Difference (wrt CRTM)

CRTM with RO inputs CRTM with ECMWF inputs

Select ATMS Channel/Band

Ch. 01 (23.8 GHz) Ch. 02 (31.4 GHz) Ch. 03 (50.3 GHz) Ch. 04 (51.76 GHz) Ch. 05 (52.8 GHz) Ch. 06 (53.596±0.115 GHz) Ch. 07 (54.5 GHz) Ch. 08 (54.94 GHz) Ch. 09 (55.5 GHz) Ch. 10 (57.290344 [= f₀] GHz) Ch. 11 (f₀±0.217 GHz) Ch. 12 (f₀±0.3222±0.048 GHz) Ch. 13 (f₀±0.3222±0.022 GHz) Ch. 14 (f₀±0.3222±0.010 GHz) Ch. 15 (f₀±0.3222±0.0045 GHz) Ch. 16 (88.2 GHz) Ch. 17 (165.5 GHz) Ch. 18 (183.31±7 GHz) Ch. 19 (183.31±4.5 GHz) Ch. 20 (183.31±3 GHz) Ch. 21 (183.31±1.8 GHz) Ch. 22 (183.31±1 GHz) Chs 2,3 & 5-15 Chs 6-15 ATMS Ch 1, 2, 3 & 5 vs AMSU Ch 1-4 ATMS Ch 6-9 vs AMSU Ch 5-8 ATMS Ch 10-13 vs AMSU Ch 9-12 ATMS Ch 14-17 v AMSU/MHS Ch 13,14,1,2 ATMS Ch 18, 20, 22 vs MHS Ch 5, 4, & 3

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