CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- HiRDLS
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Full Name
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High Resolution Dynamics Limb Sounder
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Status
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No longer operational
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Instrument Agencies
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NASA , UKSA
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Maturity
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Instrument Type
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Atmospheric chemistry 
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Geometry
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Limb-scanning
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Instrument Technology
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Limb-scanning IR spectrometer
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Sampling
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Sounding
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Data Access
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Open Access
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Data Format
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HDF
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Measurements and Applications
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Measures atmospheric temperature, concentrations of ozone, water vapour, methane, NOx, N2O, CFCs and other minor species, aerosol concentration, location of polar stratospheric clouds and cloud tops. Currently not collecting data on Aqua.
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Resolution Summary
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Vertical: 1 km, Horizontal: 10 km
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Swath Summary
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Accuracy Summary
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Trace gas: 10%, Temperature: 1 K, Ozone: 10%
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Waveband Summary
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TIR: 6.12 - 17.76 µm (21 channels)
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| TIR (~6.0 µm - ~15.0 µm) |
| FIR (~15.0 µm - ~0.1 cm) |
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Instrument Measurements
Measurements Overview
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| Category | Parameter |
| Aerosols | Aerosol Extinction / Backscatter (column/profile)   |
| Aerosol optical depth (column/profile) |
| Aerosol absorption optical depth (column/profile) |
| Atmospheric Humidity Fields | Atmospheric specific humidity (HT, LS, HS&M) |
| Atmospheric Temperature Fields | Atmospheric temperature (HT, LS, HS&M) |
| Cloud type, amount and cloud top temperature | Cloud top height |
| Ozone | O3 Mole Fraction |
| Trace gases (excluding ozone) | CH4 Mole Fraction |
| CFC-11 (HT, LS, HS&M) |
| CFC-12 (HT, LS, HS&M) |
| NO2 Mole Fraction |
| N2O (HT, LS, HS&M) |
| HNO3 (HT, LS, HS&M) |
| ClONO2 (LS, HS&M) |
| N2O5 (HT, LS, HS&M) |
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Instrument Missions
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