Dataset: SST - MAERI Air and SST

Name: Air and sea-surface temperatures from MAERISST from R/V Tangaroa cruise VDT0410 in the South East of New Zealand, S.W. Bounty Trough in 2004 (SAGE project)
Published: 2010-03-24
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-41.137 E:178.548 S:-47.986 W:170.625

Project:

Surface-Ocean Lower-Atmosphere Studies Air-Sea Gas Exchange (Experiment) (SAGE)

Program:

Iron Synthesis (FeSynth)

United States Surface Ocean Lower Atmosphere Study (U.S. SOLAS)

Principal Investigator:

Dr Peter J. Minnett (University of Miami Rosenstiel School of Marine and Atmospheric Science, UM-RSMAS)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

24March2010

Version Date:

2010-03-24

Validated:

Yes

Current State:

Final no updates expected

Air and sea-surface temperatures from MAERISST from R/V Tangaroa cruise VDT0410 in the South East of New Zealand, S.W. Bounty Trough in 2004 (SAGE project)

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Description

Air and Sea-surface Temperatures from MAERISST

The data are measurements of the ocean skin SST and near-surface air-temperature derived from the natural infrared emission from the ocean and atmosphere, measured by the Marine-Atmospheric Emitted Radiance Interferometer (MAERI). M-AERI is a Fourier Transform Infrared (FTIR) sprectoradiometer. Calibration is traceable to NIST standards.

Relevant references are:
Minnett, P. J., R. O. Knuteson, F. A. Best, B. J. Osborne, J. A. Hanafin and O. B. Brown,
2001. The Marine-Atmospheric Emitted Radiance Interferometer (M-AERI), a
high-accuracy, sea-going infrared spectroradiometer. Journal of Atmospheric and
Oceanic Technology, 18: 994-1013.

Minnett, P. J., K. A. Maillet, J. A. Hanafin and B. J. Osborne, 2005. Infrared
interferometric measurements of the near surface air temperature over the oceans.
Journal of Atmospheric and Oceanic Technology, 22: 1016-1029.

Rice, J. P., J. J. Butler, B. C. Johnson, P. J. Minnett, K. A. Maillet, T. J. Nightingale, S. J.
Hook, A. Abtahi, C. J. Donlon and I. J. Barton, 2004. The Miami2001 Infrared
Radiometer Calibration and Intercomparison: 1. Laboratory Characterization of
Blackbody Targets. Journal of Atmospheric and Oceanic Technology, 21: 258-267.

Barton, I. J., P. J. Minnett, C. J. Donlon, S. J. Hook, A. T. Jessup, K. A. Maillet and T. J.
Nightingale, 2004. The Miami2001 infrared radiometer calibration and inter-
comparison: 2. Ship comparisons. Journal of Atmospheric and Oceanic
Technology, 21: 268-283.

Methods & Sampling

Refer to SAGE Voyage Report, pgs 36-37

Data Processing Description

BCO-DMO Processing Notes
Generated from original file Tangaroa_SAGE_MAERI.dat

BCO-DMO Edits
- date, as YYYYMMDD, generated from yrday and added as a data field
- parameter names modified to conform to BCO-DMO convention

Data Files

File
MAERI_Air_SST.csv (Comma Separated Values (.csv), 202.15 KB) MD5:5818306381b21df55b5ed9e263da68a0 Primary data file for dataset ID 3318

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Science Foundation	unknown SAGE NSF
New Zealand International Science and Technology Fund	unknown SAGE ISAT
New Zealand Foundation for Research, Science and Technology	C01X0204
New Zealand Foundation for Research, Science and Technology	C01X0223

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
VDT0410	SOLAS-ANZ	2004-03-17	R/V Tangaroa	Mike Harvey (Chief Scientist)	data info

Instruments

Marine-Atmospheric Emitted Radiance Interferometer

Supplied Description:

The M-AERI is a Fourier transform infrared interferometric spectroradiometer that measures spectra in the infrared (? ~3 to ~18 µm) with a resolution of ~0.5 cm-1. It uses two infrared detectors cooled to 78 K by a Stirling cycle cooler to reduce the noise equivalent temperature difference to levels well below 0.1 K.

The radiometric calibration of the M-AERI is done continuously using two internal black-body cavities, each with an effective

emissivity of >0.998. The mirror scan sequence includes measurements of the reference cavities before and after each set of spectra from the ocean and atmosphere. The absolute accuracy of the M-AERI calibration is monitored by episodic use in the laboratory of a NIST-certified water-bath black-body calibration target and residual errors in the M-AERI spectral brightness temperature measurements at temperatures typical of the ocean surface and lower troposphere are typically

The interferometer integrates measurements over a pre-selected time interval, usually a few tens of seconds, to obtain a
satisfactory signal to noise ratio, and a typical cycle of measurements including two view angles to the atmosphere, one to the ocean, and calibration measurements, takes about ten minutes. The absolute accuracy of the spectral measurements (when expressed as a brightness temperature) is 20-30 mK. The measured spectra are processed in real-time to generate measurements of the skin SST and
air temperature at the height of the instrument to accuracies much better than 0.1K.

Instrument Type

Generic Name: Marine-Atmospheric Emitted Radiance Interferometer

Acronym: M-AERI

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/122/

Generic Description:

The the Marine-Atmospheric Emitted Radiance Interferometer (M-AERI) is a Fourier Transform Infrared (FTIR) sprectoradiometer with calibrations traceable to NIST standards. The M-AERI measures spectra in the infrared (about 3 to 18 micrometers) range with a resolution of about 0.5 cm-1. It uses two infrared detectors cooled to 78 K by a Stirling cycle cooler to reduce the noise equivalent temperature difference to levels well below 0.1 K.

The radiometric calibration of the M-AERI is done continuously using two internal black-body cavities, each with an effective emissivity of greater than 0.998. The mirror scan sequence includes measurements of the reference cavities before and after each set of spectra from the ocean and atmosphere. The absolute accuracy of the M-AERI calibration is monitored by episodic use in the laboratory of a NIST-certified water-bath black-body calibration target and residual errors in the M-AERI spectral brightness temperature measurements at temperatures typical of the ocean surface and lower troposphere are typically less than 0.03K.

The interferometer integrates measurements over a pre-selected time interval, usually a few tens of seconds, to obtain a satisfactory signal to noise ratio, and a typical cycle of measurements including two view angles to the atmosphere, one to the ocean, and calibration measurements, takes about ten minutes. The absolute accuracy of the spectral measurements (when expressed as a brightness temperature) is 20-30 mK. The measured spectra are processed in real-time to generate measurements of the skin SST and air temperature at the height of the instrument to accuracies much better than 0.1K.

Reference:

Minnett, P. J., R. O. Knuteson, F. A. Best, B. J. Osborne, J. A. Hanafin and O. B. Brown, 2001. The Marine-Atmospheric Emitted Radiance Interferometer (M-AERI), a high-accuracy, sea-going infrared spectroradiometer. Journal of Atmospheric and Oceanic Technology, 18: 994-1013.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
date	Date (UTC)	YYYYMMDD	date
yrday	Day of Year	DDD.xxxx	yrday
hour_gmt	Hour (UTC)	HH.xxxxxx	hour_gmt
temp_air	Air temperature	degrees Kelvin	temp_air
temp_air_StdDev	Air temperature Std Dev	degrees Kelvin	no_bcodmo_term
temp_air_MeanUncertainty	Air temperature Mean Uncertainty	degrees Kelvin	no_bcodmo_term
temp_ss	Sea Surface temperature	degrees Kelvin	SST
temp_ss_StdDev	Sea Surface temperature Std Dev	degrees Kelvin	no_bcodmo_term
temp_ss_MeanUncertainty	Sea Surface temperature Mean Uncertainty	degrees Kelvin	no_bcodmo_term
lon	longitude (West is negative)	decimal degrees	lon
lat	latitude (South is negative)	decimal degrees	lat

Status message

Database

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Dataset: SST - MAERI Air and SST