gov.noaa.ncdc:C00784
eng; USA
utf8
dataset
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
NCEI Contact Information
Information for contacts at NCEI.
information
pointOfContact
2023-06-23
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
African Easterly Wave Climatology, Version 1
AEWC
2014-09-17
publication
1.0
doi:10.7289/V5ZC80SX
NCEI DSI 6193_01
gov.noaa.ncdc:C00784
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
publisher
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
User Engagement and Services Branch
1-828-271-4800
1-828-271-4876
151 Patton Avenue
Veach-Baley Federal Building, Room 468
Asheville
NC
28801-5001
USA
ncei.orders@noaa.gov
https://www.ncdc.noaa.gov
HTTPS
Web Browser
NOAA National Centers for Environmental Information (NCEI)
NCEI home page with information, data access, and customer support contacts.
information
8:00 - 6:00 Eastern
publisher
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
originator
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
author
Belanger, James I.
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
principalInvestigator
Belanger, James I.
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
author
Jelinek, Mark T.
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
principalInvestigator
Jelinek, Mark T.
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
author
Curry, Judith A.
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
principalInvestigator
Curry, Judith A.
GIT/EAS > School of Earth and Atmospheric Sciences, Georgia Institute of Technology
author
modelDigital
The AEWC dataset was created using a new algorithm developed by researchers at Georgia Tech and represents the first attempt to produce a standard easterly wave tracking dataset for the East Pacific, Atlantic, and Africa. The algorithm uses curvature vorticity anomalies to identify the location of easterly waves as a function of time. The dataset provides 6-hourly coverage over a 63-year period (January 1948-December 2010) in the region bounded by 35S-35N x 140W-40E. Data files are derived using four separate atmospheric reanalysis products including: 1) the ERA-40 dataset (covers the period January 1958 to December 2001); 2) the ERA-Interim dataset (covers the period January 1979 to December 2010); the CFS-R dataset (covers the period January 1979 to December 2010); and the NCEP/NCAR I dataset (covers the period January 1948 to December 2010). Other data sources used in the production of the AEWC are the Remote Sensing Systems SSM/I Total Precipitable Water, Rain Rate, and Cloud Liquid Water content products, Claus Brightness Temperature, and Outgoing Longwave Radiation from the NCDC Daily OLR CDR. Each netCDF file contains all the easterly waves that originate in a given year, the isobaric level for easterly wave tracking (600hPa, 700hPa, and 850hPa) and the zone from which the easterly wave began its development. Zones include: Africa (AFR), Central America (CAM), North Atlantic (NAL), Northeast Pacific (NEP), South Atlantic (SAL), South America (SAM), Southeast Pacific (SEP), and Other (OTH). For each easterly wave, the following variables are provided including: wave observation count, wave trajectory id, wave time, wave trough centroid latitude, wave trough centroid longitude, wave trough maximum latitude, mean longitude of wave trough maximum latitude, wave trough minimum latitude, mean longitude of wave trough minimum latitude, wavelength, mean wave trough relative vorticity, maximum wave trough relative vorticity, minimum wave trough relative vorticity, standard deviation wave trough relative vorticity,mean wave trough curvature vorticity, maximum wave trough curvature vorticity, minimum wave trough curvature vorticity, standard deviation wave trough curvature vorticity, mean wave trough shear vorticity, maximum wave trough shear vorticity, minimum wave trough shear vorticity, standard deviation wave trough shear vorticity, mean wave trough Claus brightness temperature, standard deviation wave trough Claus brightness temperature, wave trough Claus brightness temperature area fraction, mean wave trough total precipitable water, standard deviation wave trough total precipitable water, wave trough total precipitable water area fraction, mean wave trough rain rate, standard deviation wave trough rain rate, wave trough rain rate area fraction, mean wave trough cloud liquid water, standard deviation wave trough cloud liquid water, wave trough cloud liquid water area fraction, mean wave trough outgoing longwave radiation, standard deviation wave trough outgoing longwave radiation, wave trough outgoing longwave radiation area fraction, mean wave trough outgoing longwave radiation anomaly, standard deviation wave trough outgoing longwave radiation anomaly.
The data will primarily be utilized by atmospheric scientists specializing in tropical meteorology. This may include studies of easterly wave genesis, intensification, and decay as well as the relationship between tropical cyclones and easterly waves.
completed
James Belanger
The Weather Company, an IBM business
Senior Meteorological Scientist
james.belanger@weather.com
pointOfContact
Hilawe Semunegus
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Research Scientist
pointOfContact
notPlanned
https://www.ncei.noaa.gov/pub/data/metadata/images/C00784_aewc_graphic.png
Easterly wave track density per year for the ERA-Interim reanalysis during the period June to November 1995-2010.
PNG
Earth Science > Climate Indicators > Atmospheric/Ocean Indicators > Extreme Weather
Earth Science > Climate Indicators > Atmospheric/Ocean Indicators > Teleconnections
theme
Global Change Master Directory (GCMD) Science Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
Atmospheric - Upper-air - Upper-air Wind Speed And Direction
Atmospheric - Upper-air - Cloud Properties
theme
Global Climate Observing System (GCOS) Essential Climate Variables (ECVs)
2017
publication
Release 2017
World Meteorological Organization, United Nations
https://public.wmo.int/en/programmes/global-climate-observing-system/essential-climate-variables
HTTP
Information
GCOS Essential Climate Variables
Overview of the GCOS Essential Climate Variables.
information
custodian
Ocean > Atlantic Ocean
Ocean > Pacific Ocean
Continent > Africa
Continent > South America
Continent > North America > Central America
place
Global Change Master Directory (GCMD) Location Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
Vertical Location > Troposphere
stratum
Global Change Master Directory (GCMD) Location Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
SSMIS > Special Sensor Microwave Imager/Sounder
instrument
Global Change Master Directory (GCMD) Instrument Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
GEOSTATIONARY SATELLITES
platform
Global Change Master Directory (GCMD) Platform Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
100 km - < 250 km or approximately 1 degree - < 2.5 degrees
dataResolution
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
> 1 km
dataResolution
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2018
revision
Version 8.6
Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
HTTPS
Web Browser
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
publisher
otherRestrictions
Cite as: Belanger, James I., Jelinek, Mark T., Curry, Judith A. (2014): "African Easterly Wave Climatology, Version 1." NOAA National Centers for Environmental Information. [indicate subset used]. https://doi.org/10.7289/V5ZC80SX [access date].
otherRestrictions
Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
otherRestrictions
Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
A climatology of easterly waves in the tropical Western Hemisphere
Geoscience Data Journal
publisher
https://doi.org/10.1002/gdj3.40
HTTPS
Web Browser
Belanger, J. I., Jelinek, M. T. and Curry, J. A. (2017), A climatology of easterly waves in the tropical Western Hemisphere. Geosci. Data J.. doi:10.1002/gdj3.40
Science paper associated with the dataset.
information
crossReference
collection
vector
222000
eng; USA
climatologyMeteorologyAtmosphere
Data are processed using MATLAB R2012a 64-bit with access to NetCDF 4.1.3.
1
-140.0
40.0
-35.0
35.0
ground condition
1948
2010
6
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
NCEI Contact Information
Information for contacts at NCEI.
information
distributor
In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Contact NCEI for other distribution options and instructions.
XML
netCDF-4
ZLIB compression
https://doi.org/10.7289/V5ZC80SX
HTTPS
Landing Page
NCEI Dataset Landing Page
Landing page for the dataset.
information
https://www.ncei.noaa.gov/data/african-easterly-wave-climatology/
HTTPS
Download
NCEI Direct Download (Dataset Files)
Direct download for the dataset.
download
dataset
For more information about data creation, please review the associated documentation.
processor
AEWC Documentation
2014-09-09
publication
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
publisher
https://www.ncei.noaa.gov/data/african-easterly-wave-climatology/doc/aewc_v1.0_doc_c20140904.pdf
Web Browser
AEWC Documentation
More information about the AEWC dataset is available in the dataset documentation. Code documentation is also available for a more detailed description of processing steps. (See code tar file for more information)
information
Satellite data used in the production of the dataset
NOAA Climate Data Record (CDR) of Daily Outgoing Longwave Radiation (OLR), Version 1.2
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
custodian
https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00875/html
HTTPS
Web Browser
NOAA Climate Data Record (CDR) of Daily Outgoing Longwave Radiation (OLR), Version 1.2
More information about the source dataset is available through the link
information
1979-01
2010-12
Reanalyses data used in the production of the dataset
NCEP/NCAR Reanalysis Data 1
DOC/NOAA/ESRL > Earth System Research Laboratory, NOAA, U.S. Department of Commerce
distributor
http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html
Web Browser
NCEP/NCAR Reanalysis Data 1
More information about the source dataset is available through the link
information
1948-01
2010-12
Reanalyses data used in the production of the dataset
Climate Forecast System Reanalysis (CFSR), for 1979 to 2011
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
custodian
https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00765/html
HTTPS
Web Browser
Climate Forecast System Reanalysis (CFSR), for 1979 to 2011
More information about the source dataset is available through the link
information
1979-01
2010-12
Reanalyses data used in the production of the dataset
ERA-Interim
UCAR/NCAR/CISL/RDA > Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
distributor
http://rda.ucar.edu/datasets/ds627.0/
Web Browser
ERA-Interim
More information about the source dataset is available through the link
information
1979-01
2010-12
Reanalyses data used in the production of the dataset
ERA-40
ECMWF > European Centre for Medium-Range Weather Forecasts
distributor
http://apps.ecmwf.int/datasets/data/era40_daily/
Web Browser
ERA-40
More information about the source dataset is available through the link
information
1958-01
2001-12
Satellite data used in the production of the dataset
Claus Brightness Temperature
GB/NCAS/BADC > British Atmospheric Data Centre, NERC Centres for Atmospheric Science, United Kingdom
distributor
https://badc.nerc.ac.uk/data/claus/claus.html
HTTPS
Web Browser
Claus Brightness Temperature
More information about the source dataset is available through the link
information
1983-07
2006-06
Satellite data used in the production of the dataset
Remote Sensing Systems SSM/I
RSS > Remote Sensing Systems
distributor
http://www.remss.com/missions/ssmi
Web Browser
Remote Sensing Systems SSM/I
More information about the source dataset is available through the link
information
1987-07
2010-12
repository
NOAA National Centers for Environmental Information
NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
2015-04-22T00:00:00
asNeeded
Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.