AERI

aeri: Atmospheric Emitted Radiance Interferometer

The atmospheric emitted radiance interferometer (AERI) is a ground-based instrument that measures the downwelling infrared radiance from the Earth’s atmosphere. The observations have broad spectral content and sufficient spectral resolution to discriminate among gaseous emitters (e.g., carbon dioxide and water vapor) and suspended matter (e.g., aerosols, water droplets, and ice crystals). These upward-looking surface observations can be used to obtain vertical profiles of tropospheric temperature and water vapor, as well as measurements of trace gases (e.g., ozone, carbon monoxide, and methane) and downwelling infrared spectral signatures of clouds and aerosols.

The AERI is a passive remote sounding instrument, employing a Fourier transform spectrometer operating in the spectral range 3.3-19.2 μm (520-3020 cm-1) at an unapodized resolution of 0.5 cm-1 (max optical path difference of 1 cm). The extended-range AERI (ER-AERI) deployed in dry climates, like in Alaska, have a spectral range of 3.3–25.0 μm (400-3020 cm-1) that allow measurements in the far-infrared region. Typically, the AERI averages views of the sky over a 16-second interval and operates continuously.

Measurements

Atmospheric moisture

Atmospheric temperature

Cloud effective radius

Liquid water path

Longwave spectral brightness temperature

Longwave spectral radiance

Locations

Fixed
AMF1
AMF2
AMF3

Related Publications

2017

Johnson A, X Wang, and S Degelia. 2017. "Design and implementation of a GSI-based convection-allowing ensemble-based data assimilation and forecast system for the PECAN Field Experiment. Part II: Overview and evaluation of real-time system." Weather and Forecasting, 32(3), 10.1175/WAF-D-16-0201.1.

Toms B, J Tomaszewski, D Turner, and S Koch. 2017. "Analysis of a Lower Tropospheric Gravity Wave Train Using Direct and Remote Sensing Measurement Systems." Monthly Weather Review, 145(7), 10.1175/MWR-D-16-0216.1.

2016

Gero J, MH Westphall, RO Knuteson, N Nalli, and WL Smith. 2016. Sea Surface Emissivity, Temperature and Atmospheric Measurements from the M-AERI during the ACAPEX Campaign. In Hyperspectral Imaging & Sounding ofthe Environment, Washington DC: OSA.

Mlynczak MG, T Daniels, D Kratz, DR Feldman, WD Collins, EJ Mlawer, M Alvarado, J Lawler, LW Anderson, D Fahey, L Hunt, and J Mast. 2016. "The spectroscopic foundation of radiative forcing of climate by carbon dioxide." Geophysical Research Letters, 43(10), 10.1002/2016gl068837.

Wong EW and PJ Minnett. 2016. "Retrieval of the Ocean Skin Temperature Profiles From Measurements of Infrared Hyperspectral Radiometers—Part II: Field Data Analysis." IEEE Transactions on Geoscience and Remote Sensing, 54(4), 10.1109/tgrs.2015.2501425.

2015

Blumberg WG, DD Turner, U Lohnert, and S Castleberry. 2015. "Ground-Based Temperature and Humidity Profiling Using Spectral Infrared and Microwave Observations. Part II: Actual Retrieval Performance in Clear-Sky and Cloudy Conditions." Journal of Applied Meteorology and Climatology, 54(11), 10.1175/jamc-d-15-0005.1.

Klein PM, TA Bonin, JF Newman, DD Turner, PB Chilson, CE Wainwright, WG Blumberg, S Mishra, M Carney, EP Jacobsen, S Wharton, and RK Newsom. 2015. "LABLE: A Multi-Institutional, Student-Led, Atmospheric Boundary Layer Experiment." Bulletin of the American Meteorological Society, 96(10), 10.1175/bams-d-13-00267.1. ONLINE.

Wulfmeyer V, RM Hardesty, DD Turner, A Behrendt, MP Cadeddu, P Di Girolamo, P Schluessel, J Van Baelen, and F Zus. 2015. "A review of the remote sensing of lower tropospheric thermodynamic profiles and its indispensable role for the understanding and the simulation of water and energy cycles." Reviews of Geophysics, 53(3), 10.1002/2014rg000476. ONLINE.

Shupe MD, DD Turner, A Zwink, MM Thieman, EJ Mlawer, and T Shippert. 2015. "Deriving Arctic Cloud Microphysics at Barrow, Alaska: Algorithms, Results, and Radiative Closure." Journal of Applied Meteorology and Climatology, 54(7), 10.1175/jamc-d-15-0054.1.

Fox C, PD Green, JC Pickering, and N Humpage. 2015. "Analysis of far-infrared spectral radiance observations of the water vapor continuum in the Arctic." Journal of Quantitative Spectroscopy and Radiative Transfer, 155, 10.1016/j.jqsrt.2015.01.001.

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