Instrument : Atmospheric Emitted Radiance Interferometer (AERI)

Instrument Categories
Radiometric

Picture of the Atmospheric Emitted Radiance Interferometer (AERI)

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
NSAC1 Browse Data Browse PlotsCentral Facility, Barrow AK
Southern Great Plains
SGPB1 Browse DataHillsboro, KS (Boundary)
SGPB4 Browse DataVici, OK (Boundary)
SGPB5 Browse DataMorris, OK (Boundary)
SGPB6 Browse DataPurcell, OK
SGPC1 Browse Data Browse PlotsCentral Facility, Lamont, OK
Tropical Western Pacific
TWPC1 Browse DataCentral Facility, Manus I., PNG
TWPC2 Browse Data Browse PlotsCentral Facility, Nauru Island
TWPC3 Browse Data Browse PlotsCentral Facility, Darwin, Australia
ARM Mobile Facility
FKBM1 Browse Data Browse PlotsBlack Forest, Germany
GRWM1 Browse Data Browse PlotsGraciosa Island, Azores, Portugal
HFEM1 Browse Data Browse PlotsShouxian, Anhui, China
MAOM1 Browse Data Browse PlotsManacapuru, Amazonas, Brazil; AMF1
NIMM1 Browse Data Browse PlotsNiamey, Niger
OLIM1 Browse DataOliktok Point, Alaska
PGHM1 Browse Data Browse PlotsARIES Observatory, Nainital, Uttarkhand, India
PVCM1 Browse Data Browse PlotsHighland Center, Cape Cod MA; AMF 1
PYEM1 Browse Data Browse PlotsPoint Reyes, CA
TMPM1 Browse DataU. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2

Contact(s)

Jonathan Gero
608-265-2335
jonathan.gero@ssec.wisc.edu

Brian Ermold
Developer
(509) 375-2277
brian.ermold@pnnl.gov

Krista Gaustad
Developer
(509) 375-5950
krista.gaustad@pnnl.gov

Annette Koontz
Developer
(509) 375-3609
annette.koontz@pnnl.gov

Denny Hackel
associate
(608) 770-1485
dennyh@ssec.wisc.edu

Ray Garcia
associate
(608) 262-8439
ray.garcia@ssec.wisc.edu

Raymond Garcia
software
(608) 262-8439
ray.garcia@ssec.wisc.edu