@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <https://gcmd.earthdata.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/24cf4b0e-4464-4edb-8f0c-415e851a6d79>
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  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/7beda062-19ba-4cf4-83f5-d4f2ac16e700> .

<https://gcmd.earthdata.nasa.gov/kms/concept/7beda062-19ba-4cf4-83f5-d4f2ac16e700>
  ns0:altLabel [ ] ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/24cf4b0e-4464-4edb-8f0c-415e851a6d79> ;
  skos:prefLabel "ERICA"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/projects> ;
  skos:definition """Scientific Objectives:
 -Understanding the fundamental physical processes occuring in the
  atmosphere during rapid intensification of cyclones at sea.
 -Determining those physical processes that need to be incorporated
  into dynamical prediction models.
 -Identifying measurable precursors as necessary input into the
  initial analysis for accurate and detailed operational model predictions.
Project Description:
     The Experiment on Rapidly Intensifying Cyclones over the Atlantic (ERICA),
under the Office of Naval Research (ONR) Heavy Weather at Sea Accelerated
Research Initiative program, is a study to determine physical mechanisms and
processes which lead to explosive wintertime storms developing over the
Atlantic Ocean.  ERICA is a follow-up study to the Genesis of Atlantic Lows
Experiment (GALE), conducted in the winter of 1986.  Other contributors include
several departments of the Navy and the Air Force as well as the National
Weather Service (NWS), National Oceanic Atmospheric Administration (NOAA),
National Environmental Satellite Data and Information Service (NESDIS),
Environmental Research Laboratory (ERL), Department of Transportation (DOT),
Department of Energy (DOE), National Science Foundation (NSF), National Center
for Atmospheric Research (NCAR), Air Weather Service (AWS), Atmospheric
Environment Service (AES) of Toronto, Canada, along with universities and
research organizations in the United States and Canada.  Operations are being
carried out at three main centers; the World Weather Building, Camp Springs,
Maryland, Maritimes Weather Center, Bedford, Nova Scotia and Naval Air Station,
Brunswick, Maine.  The field phase of ERICA began 1 December 1988 and ended 26
February 1989.  The experiment was designed to focus on east coast winter
storms that rapidly intensified over a few hours and a few hundred kilometers
and deepened tens of millibars per six hours.  These ERICA-type storms in the
previous 22 years before the field study mainly developed over the northwestern
Atlantic from Washington D.C. to St Johns, Newfoundland.
Data Sources:
     The ERICA observing region covers the eastern half of the United States,
similar to that observed during GALE, as well as southeastern Canada and the
northwestern Atlantic west of 50 degrees west.  Rawinsonde observations are
being supplied by the NWS and NCAR (CLASS-Cross Chain Loran Atmospheric
Sounding System).  Canada's AES and military are providing standard
meteorological parameters.  The satellite observations are being taken from
GOES-6 and GOES-7, NOAA-10 and NOAA-11, DMSP-F8 and F9 and GEOSAT which provide
radiance measurements.  Surface observations are being supplied by the standard
NWS network along with the FAA, Coast Guard and military stations.  Nova Scotia
has also set up a ground-based network (Mesonet) to measure temperature,
pressure, humidity, wind speed and direction.  The meteorological buoy network
is supported by NOAA, Navy, AES and the Woods Hole Oceanographic Institutite
(WHOI) measuring surface and sub-surface parameters.  Ship data is also being
obtained and quality controlled by the NWS and the ECMWF.  Aircraft
observations are being provided by the Air Force, Navy, NOAA and NCAR; the Air
Force flights deploying omega dropsondes and gathering cyclonic-scale data over
the ocean, the NCAR missions accumulating jet stream structure data that could
impact the rapid intensification phase, the NOAA flights over the low-level
cyclone, frontal zones, updraft zones and convective regions, and the Navy
missions deploying drifting buoys and dropwindsondes.  Radar observations are
being provided by NWS, NOAA (Doppler/non Doppler) and the Air Force Geophysics
Laboratory (Doppler).
Data Products:
     Drexel University is the central archive and disrtibution center for ERICA
data.  The ERICA Data Center (EDC) is funded by the Office of Naval Research
(ONR).
     1. AIRCRAFT: NCAR (flight level), NOAA (flight level,doppler/nondoppler,
        cloud physics) and AWS(flight level) data are available in digitized
        form.  Color slides of NOAA radar data are also available.
     2. SOUNDING: Master sounding file containing 10mb interval data
        (hydrostatic height, temperature, relative humidity, wind direction and
        speed) is available in digitized form.  Other products, which include
        NCDC upper air, CYCLE and Yarmouth (Canada), CLASS and LeSonde (NCAR),
        Dropsonde (AWS), Wind Profiler (Pennsylvania State University) and
        Marine (Navy) sounding data are also available in digitized format.
        Products available on hardcopy include Skew-Ts of ERICA soundings,
        Constant Pressure Charts of ERICA Soundings, NMC North American
        Constant Pressure Analyses, NCAR Skew-Ts of CLASS soundings, and NCAR
        Skew-Ts of LeSonde dropwindsondes.
     3. RADAR: Canadian data from Halifax and Holyrood is available in
        digitized form.  Hardcopies are also available for these sites along
        with the NWS sites.
     4. SATELLITE: GOES-6 and GOES-7 imagery and Satellite Wind data, NOAA-10
        and NOAA-11 SST Analyses (from AVHRR) and TOVS soundings, GEOSAT
        Surface Wind data and DMSP F8 and F9 soundings are available in
        digitized format.  Other products include an ERICA Satellite Atlas,
        Videotapes of GOES imagery, hardcopy of NESDIS SST Analyses and slides
        of SST Analyses and Difference fields.
     5. BOUNDARY LAYER: Dr. Fred Sanders' Surface Pressure Analyses, NCDC
        Precipitation observations, NCDC Hourly Surface data, Nova Scotia
        Mesonet data, Canadian Hourly Surface data, a Master Marine data tape
        containing buoy and SST analyses, NCDC Surface Marine data, Canadian
        Marine data, Navy Surface reports and AES, WHOI and NDBC buoy data are
        available in digitized form.  Other products include NMC Surface
        Analyses, Maritime Weather Center Surface Analyses, Dr. Fred Sanders'
        Surface Analyses, NWS Observed Snow Cover Maps and NCDC Ships' Logs
        available on hardcopy.
  *** The ERICA Compact Disc (CD)/ROM containing Aircraft, Sounding, Satellite,
      Boundary, Documentation and Access Software, Text of ERICA Data Users
      Guide and NCAR Terrain Data is available from the ERICA Data Center and
      is accessible from both IBM and APPLE PC computers as well as
      workstations.
      Project Archive Contact:
                Edward Hartnett
                ERICA Data Center
                Department of Physics and Atmospheric Science
                Drexel University
                Philadelphia, PA  19104
                215-895-2786
                OMNET > ERICA.DATA.CENTER
                INTERNET > ED@CONVEX.DREXEL.EDU (129.25.1.200)
      Project Director Contact:
                Dr. Carl Kreitzberg
                Department of Physics and Atmospheric Science
                Drexel University
                32nd & Chestnut St.
                Philadelphia, PA 19104
                215-895-2726
      References:
           Hadlock, R., and C. W. Kreitzberg, 1988: The Experiment on Rapidly
      Intensifying Cyclones over the Atlantic (ERICA) Field Study: Objectives
      and Plans.  Bulletin of the American Meteorological Society, 69,
      1309-1320.
           Hartnett, Ed, 1990: ERICA Data Users Guide.
WWW: "http://einstein.drexel.edu/\""""@en ;
  a skos:Concept .

