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Dataset Overview | National Centers for Environmental Information (NCEI)

Northern Hemisphere Synoptic Weather Maps

EV2 - Northern Hemisphere Synoptic Weather Maps

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Daily Series of Synoptic Weather Maps. Part I consists of plotted and analyzed daily maps of sea-level and 500-mb maps for 0300, 0400, 1200, 1230, 1300, and 1500 GMT. It was published from January 1899 through June 1971. Each volume of the series contains one sea level map and one 500-millibar map for each day of the month. The 500-millibar charts began with the December 1944 issue. Part II Northern Hemisphere data tabulations contain daily synoptic surface and upper air reports. Sea Level data are presented in two sections; one for land reports and one for marine reports. The publication began with data for October 1, 1945 and was published on a daily basis through December 31, 1963. Data for November and December 1945 and January 1, 1954 through June 30, 1955 were not compiled. Although formal publication of these data terminated December 31, 1963, subsequent data through December 31, 1978, were compiled and placed on 35-millimeter microfilm.
Cite this dataset when used as a source.
  • NCEI DSI 3900_01
  • gov.noaa.ncdc:C01009
gov.noaa.ncdc:C01009
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Distribution Formats
  • XML
  • PDF
    • File Specification:
    • File Compression:
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Jason Cooper
NCDC Archivist
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
+1 828-271-4800
ncei.orders@noaa.gov
Coverage Description
Time Period 1899 to 1956
Spatial Bounding Box Coordinates
West: -180
East: 180
South: 0
North: 90
Spatial Coverage Map
Dataset Information
  • CDMP Web site
    Information about the Climate Database Modernization Program (CDMP) and the current Image Access Repository.
General Documentation
Publication Dates
  • publication: 2011-03-15
  • revision: 2013-05-02
Data Presentation Form Digital image
Dataset Progress Status Ongoing - data is continually being updated
Data Update Frequency Irregular
Purpose In the late 1990s NCDC realized the need to host digital images of weather and climate records on the internet. As a result, EV2 was developed as a key system for providing access to the millions of original source data images in the NCDC archives. With its upload and index capability, EV2 also enables the continuation of NCDC's commitment to make more of its weather and climate data available online so that users across the world can view climate and weather records held in the NCDC archives.
Use Limitations
  • Controlled user access to the EV2 system
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Atmosphere > Atmospheric Pressure
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature
  • Earth Science > Atmosphere > Atmospheric Winds > Surface Winds
  • Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds
Global Climate Observing System (GCOS) Essential Climate Variables (ECVs)
  • Atmospheric - Surface - Air Temperature
  • Atmospheric - Surface - Pressure
  • Atmospheric - Surface - Wind Speed And Direction
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • 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
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • BALLOONS
  • RADIOSONDES
  • PIBAL > Pilot Balloons
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • Barometers
  • Thermometers
  • Anemometers
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Geographic Region > Northern Hemisphere
Use Constraints
  • 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.
Access Constraints
  • 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.
Fees
  • 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.
Lineage information for: dataset
Lineage Statement The vast majority of the digital image records available originate from the NCDC physical archives through the Climate Database Modernization Program (CDMP). These efforts produced over 50 million images from 2000-2011. Additional limited scanning activities at NCDC also contribute to the image repository. Partnerships with other NOAA line offices and international weather services have contributed to the broad and global nature of digitally imaged records available from the NCDC.
Processor
  • NCDC Climate Data Modernization Program
Processing Steps
  • Scan
    Rationale: To digitize collection in order to make available online.
Processing Environment paper forms
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - 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.
Last Modified: 2023-06-23
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