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AIRCRAFT FLUX-FILTERED: UNIV. COL. (FIFE)
Entry ID: FIFE_AF_FLT_G

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Summary

Abstract: The NCAR King Air participation in FIFE-1987 and FIFE-1989 was part of a coordinated atmospheric boundary layer component which included other aircraft, surface measurements, balloon-borne profiles, and SODAR and lidar remote sensing. The chief objective of the boundary layer component was to describe the structure of the atmospheric boundary layer over the FIFE study area, increase knowledge of the physical processes active in the daytime boundary layer, and explore the relationship of surface properties to the time and spatial variation in the structure of the boundary layer. The phenomena studied were the daytime convective boundary layer structure and physical processes. This study used airborne measurement of vertical and horizontal wind gusts, humidity, potential temperature, mean horizontal wind speed, and horizontal linear trends of temperature, humidity, radiation. Fluxes of sensible heat, moisture, and momentum were estimated from fast response wind gust, temperature, and humidity measurements; these fluxes were evaluated from data which had been high pass filtered with a third order algorithm with a break point set at 0.012 Hz (5 km wavelength). Several radiation parameters were also measured (e.g., global short and longwave, upwelling, and downwelling). Altitude of the aircraft was measured by radar and pressure; radar was more accurate but was only valid below about 930 m. Geographical position was measured by an inertial navigation system. All level legs of a flight mission were flown at a constant pressure altitude, thus the altitude of the aircraft over the surface varied. In general, the data set is of excellent overall quality with very little loss of data. Vertical winds were sampled at an effective rate of 5 samples per second instead of the customary 10 samples per second; this had negligible effect on the fluxes but could compromise estimates of turbulence dissipation. From extensive analysis the FIFE Boundary Layer Group recommends using the detrended data rather than the filtered data.

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Description: AIRCRAFT FLUX-FILTERED: UNIV. COL. (FIFE)

Geographic Coverage

N: 40.0 S: 37.0 E: -95.0 W: -102.0

Data Set Citation

Dataset Originator/Creator: GROSSMAN, R.L.
Dataset Title: AIRCRAFT FLUX-FILTERED: UNIV. COL. (FIFE)
Dataset Release Date: 1994
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/8
Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=8&term2attribute=...

Temporal Coverage

Start Date: 1987-05-26

Stop Date: 1989-10-31

Location Keywords

CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > KANSAS

ISO Topic Category

BIOTA
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
ENVIRONMENT

Platform

KINGAIR

Instrument

EDDY CORRELATION DEVICES    [Information]

HYGROMETERS    [Information]

IRGA >Infrared Gas Analyzers    [Information]

PRESSURE TRANSDUCERS    [Information]

NDIR GAS ANALYZER >Nondispersive Infrared Gas Analyzer    [Information]

WIND PROFILERS    [Information]

INFRARED RADIOMETERS    [Information]

IRS >Infrared Radiometer/Spectrometer

PYRANOMETERS    [Information]

Project

EOSDIS >Earth Observing System Data Information System    [Information]

FIFE >First ISLSCP Field Experiment    [Information]

ESIP >Earth Science Information Partners Program    [Information]

CWIC >CEOS WGISS Integrated Catalog    [Information]

Keywords

EOSDIS

ATMOSPHERIC PROPERTIES

ATMOSPHERIC BOUNDARY LAYER

Data Set Progress

COMPLETE

Data Center

THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) [Information]
Data Center URL: http://daac.ornl.gov/
Dataset ID: 8

Data Center Personnel

Name: ORNL DAAC USER SERVICES OFFICE
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA

Personnel

ROBERT L. GROSSMAN
Role: TECHNICAL CONTACT
Phone: (303) 492-8932
Email: grossman at boulder.colorado.edu
Contact Address:
University of Colorado
Program in Atmospheric and Oceanic Science
City: Boulder
Province or State: CO
Postal Code: 80309-0391
Country: USA

ORNL DAAC USER SERVICES OFFICE
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA

Creation and Review Dates

DIF Creation Date: 1994-07-24

Last DIF Revision Date: 2011-03-04

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