THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - PCW PHEOS - Atmospheric -
Full Name Polar Highly Elliptical Orbit Science Weather, Climate & Air Quality Mission Status No longer considered
Instrument Agencies CSA, ECCC Maturity
Instrument Type Atmospheric chemistry Geometry Earth disk scanning
Instrument Technology High-resolution nadir-scanning IR spectrometer Sampling Imaging
Data Access Open Access Data Format NetCDF or HDF
Measurements and Applications Complement PCW operational numerical weather prediction. Will also collect information about atmospheric gaseous and aerosol composition to better understand transport and climate processes. .
Resolution Summary 10 x 10 km
Swath Summary Field of View is 560 x 560km. Field of Regard is 3024 x 3530 km.
Accuracy Summary Cal/Val requirements currently being developed
Waveband Summary 4 non-continuous bands from 0.758 - 14.3 um at a spectral sampling of 0.25 cm-1.
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
MWIR (~3.0 µm - ~6.0 µm)
TIR (~6.0 µm - ~15.0 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT, LS, HS&M, TC)
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, LS, HS&M)
Atmospheric pressure (over land surface)
Atmospheric pressure (over sea surface)
Cloud type, amount and cloud top temperatureCloud type
OzoneO3 Mole Fraction
Trace gases (excluding ozone)CH4 Mole Fraction
CO2 Mole Fraction
CO Mole Fraction
NO2 Mole Fraction
HNO3 (LS)
BrO (LT, HT, LS, TC)
PAN (LT)
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Carbon Dioxide, Methane and other Greenhouse gases click here click here search ECV Inventory records
Ozone click here click here search ECV Inventory records
Precursors (supporting the Aerosol and Ozone ECVs) click here click here search ECV Inventory records
Pressure (surface) click here click here search ECV Inventory records
Temperature (upper-air) click here click here search ECV Inventory records
Water Vapour (upper air) click here click here search ECV Inventory records
Instrument Missions
PCW-1 - Polar Communications and Weather-1 (2021 - 2036)
PCW-2 - Polar Communications and Weather-2 (2021 - 2036)
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