Instrument : Atmospheric Emitted Radiance Interferometer (AERI)
Beneficiary of Recovery Act funding.
Instrument Categories
Radiometric
General Overview
The atmospheric emitted radiance interferometer (AERI) measures the absolute infrared spectral radiance (watts per square meter per steradian per wavenumber) of the sky directly above the instrument. The spectral measurement range of the instrument is 3300 to 520 wavenumbers (cm-1) or 3-19.2 microns for the normal-range instruments and 3300 to 400 cm-1 or 3-25 microns for the extended-range polar instruments. Spectral resolution is 1.0 cm-1. Instrument field-of-view is 1.3 degrees. A calibrated sky radiance spectrum is produced every 8 minutes in normal mode and every minute in rapid sampling mode. The actual sample scan time is 20-30 sec in rapid sampling mode with periodic gaps when the instrument is looking at the blackbodies. Rapid sampling will become available in all AERIs. Rapid sampling time will eventually be reduced to data every 20 seconds. The AERI data can be used for (1) evaluating line-by-line radiative transport codes, (2) detecting/quantifying cloud effects on ground-based measurements of infrared spectral radiance (and hence is valuable for cloud property retrievals), and (3) calculating vertical atmospheric profiles of temperature and water vapor and the detection of trace gases.
Output Value-Added Products
This instrument is an input to the following value-added products, which provide improved measurements or derived quantities.
- aeri01prof3feltz : Profiles of temperature and water vapor physically retrieved from the AERI spectra
- aerich1nf1turn : AERI ch. 1 radiance data, with uncorrelated random error (noise) filtered out
- aerich2nf1turn : AERI ch. 2 radiance data, with uncorrelated random error (noise) filtered out
- aerilblclouds : AERI: Line-by-Line comparison model, clouds
- aerilbldiff : AERI: LBLRTM spectral residuals
- aerilbldiffls : AERI: LBLRTM spectral residuals, w/ scaled (lssonde) sonde input
- aerilbldiffss : AERI: LBLRTM spectral residuals, w/ scaled (lbsonde) sonde input
- aeriprof : AERI: profiles of temperature and mixing ratio
- aeriprof3feltz : Profiles of temperature and water vapor physically retrieved from the AERI spectra
- gaeriprof : AERI: temperature and mixing ratio profiles, AERI & GOES spectra
- qmeaerilbl : QME: derived AERI vs. LBRTM-resid. stats as f of bin, process, channel
- qmeaerilblls : QME: derived AERI vs. LBLRTM-resid. stats w/scaled (lssonde) sonde input
- qmeaerilblss : QME: derived AERI vs. LBLRTM-resid. stats w/scaled (lblsonde) sonde input
- qmeaeriprof : QME: derived AERI, tower, sonde profiles of temp & water vapor
Output Datastreams
- aeri01ch1 : Atmospheric Emitted Radiance Interferometer (AERI) 01: ch. 1 data
- aeri01ch2 : Atmospheric Emitted Radiance Interferometer (AERI) 01: ch. 2 data
- aeri01summary : Atmospheric Emitted Radiance Interferometer (AERI) 01: summary data
- aerich1 : Atmospheric Emitted Radiance Interferometer (AERI): channel 1 data
- aerich2 : Atmospheric Emitted Radiance Interferometer (AERI): channel 2 data
- aeriengineer : Atmospheric Emitted Radiance Interferometer (AERI): engineering data
- aerisummary : Atmospheric Emitted Radiance Interferometer (AERI): summary data
Primary Measurements
The following measurements are those considered scientifically relevant.
Locations
- North Slope Alaska (NSA)
- Central Facility, Barrow AK (C1)
- Southern Great Plains (SGP)
- Central Facility, Lamont, OK (C1)
- Hillsboro, KS (Boundary) (B1)
- Morris, OK (Boundary) (B5)
- Purcell, OK (B6)
- Vici, OK (Boundary) (B4)
- Tropical Western Pacific (TWP)
- Central Facility, Darwin, Australia (C3)
- Central Facility, Manus I., PNG (C1)
- Central Facility, Nauru Island (C2)
- ARM Mobile Facility (FKB)
- Black Forest, Germany (M1)
- ARM Mobile Facility (GRW)
- Graciosa Island, Azores, Portugal (M1)
- ARM Mobile Facility (HFE)
- Shouxian, Anhui, China (M1)
- ARM Mobile Facility (NIM)
- Niamey, Niger (M1)
- ARM Mobile Facility (PGH)
- ARIES Observatory, Nainital, Uttarkhand, India (M1)
- ARM Mobile Facility (PVC)
- Highland Center, Cape Cod MA; AMF 1 (M1)
- ARM Mobile Facility (PYE)
- Point Reyes, CA (M1)
Contact(s)
Jonathan Gero
608-265-2335
jonathan.gero@ssec.wisc.edu
Denny Hackel
associate
(608) 770-1485
dennyh@ssec.wisc.edu
Ralph Dedecker
engineering
(608) 263-6779
ralphd@ssec.wisc.edu
Robert Knuteson
science
(608) 263-7974
robert.knuteson@ssec.wisc.edu
Raymond Garcia
software
(608) 262-8439
ray.garcia@ssec.wisc.edu
