Dataset Overview | National Centers for Environmental Information (NCEI)

Barograms / Barograph Charts

EV2 - Barograms

Image example

Barograms are weekly rectangular charts recording barometric pressure at a given station. The barograph is an instrument that makes a continuous pen and ink trace of the changing atmospheric pressure on a chart. The barograph chart is also called a barogram. There were also measurements made using other types of barometers, and recorded on paper forms. Pressures were in millibars or inches of mercury. Many of these barograms and forms were provided to the archive by U.S. agencies: National Weather Service (NWS), Federal Aviation Administration (FAA), U.S. Air Force Air Weather Service (AWS), and the U.S. Navy Weather Service. The archive includes barograms and forms from other sources, including merchant ships at sea.The archive has hundreds of thousands of barograms in physical media (primarily microfilm, though also includes microfiche and paper). The period of record begins in the late 19th century, spans the entire 20th century, and continues, though in smaller volume, into the present. A limited selection of scanned barograms are available digitally as well.

Dataset Citation

Cite this dataset when used as a source.

Dataset Identifiers

NCEI DSI 3900_01
NCEI Physical Archive Collection: CHTBAR
gov.noaa.ncdc:C01005

ISO 19115-2 Metadata

gov.noaa.ncdc:C01005

Full Text · XML

Order Data	EV2 Image Access System (order) EV2 Information and Data Access Page
Distribution Formats	XML PDF Microfilm / Microfiche / Paper
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	Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov

Time Period	1878-01-01 to Present
Spatial Bounding Box Coordinates	West: -180.0 East: 180.0 South: -90.0 North: 90.0
Spatial Coverage Map

General Documentation

NCEI Dataset Landing Page
Landing page for the dataset.

Publication Dates	revision: 2013-05-02
Data Presentation Form	Hardcopy image - image archived in analog format Hardcopy image - image archived in analog format
Dataset Progress Status	Ongoing - data is continually being updated
Data Update Frequency	Not planned
Supplemental Information	The US Weather Bureau assigned the forms as Form Number 1068.
Purpose	To maintain raw, historical pressure data for reference in meteorological and climatological research.
Use Limitations	Controlled user access to the EV2 system

Dataset Citation	Cite this dataset when used as a source.
Cited Authors	DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce DOT/FAA > Federal Aviation Agency, U.S. Department of Transportation DOD/USAF/AFCCC > Air Force Combat Climatology Center, U.S. Air Force, U.S. Department of Defense DOD/USNAVY/FNMOC > Fleet Numerical Meteorology and Oceanography Center, U.S. Navy, U. S. Department of Defense
Originators	DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce DOT/FAA > Federal Aviation Agency, U.S. Department of Transportation DOD/USAF/AFCCC > Air Force Combat Climatology Center, U.S. Air Force, U.S. Department of Defense DOD/USNAVY/FNMOC > Fleet Numerical Meteorology and Oceanography Center, U.S. Navy, U. S. Department of Defense
Publishers	DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce

Theme keywords	Global Change Master Directory (GCMD) Science Keywords Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure Earth Science > Atmosphere > Atmospheric Pressure > Pressure Tendency Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure Earth Science > Oceans > Ocean Pressure > Sea Level Pressure
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 Meteorological Stations
Instrument keywords	Global Change Master Directory (GCMD) Instrument Keywords Barometers
Place keywords	Global Change Master Directory (GCMD) Location Keywords Geographic Region > Global Continent > North America > United States Of America
Stratum keywords	Global Change Master Directory (GCMD) Location Keywords Vertical Location > Land Surface Vertical Location > Sea Surface

Use Constraints

Cite this dataset when used as a source.

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	Limited in-house scanning activities and 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 archive. Charts derive from many governmental and private organizations. A limited selection of this massive collection are available digitally; the digital collection spans years 1906-1989, though most forms are from the 1940s.
Processor	NCDC Climate Data Modernization Program
Processing Steps	Digital data were scanned as JPG, TIF, or PDF from the analog forms. Rationale: To digitize collection in order to make available online.
Processing Environment	Paper forms captured digitally using various types of scanning equipment. All forms were scanned using a minimum of 300 dpi (standard archive quality).
Source Datasets	NCEI WebARTIS - CHTBAR NCEI WebARTIS - CHTBAR Search WebARTIS--collection CHTBAR--for more detail about available data in the physical archives. Description of Source: Digital images were scanned from analog charts and forms found in the CHTBAR collection.

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.

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.

Acquisition Information (collection)
Instrument	BAROMETERS MICROBAROGRAPHS BAROMETERS
Platform	WEATHER STATIONS SHIPS

Last Modified: 2023-09-08
For questions about the information on this page, please email: ncei.info@noaa.gov

Barograms / Barograph Charts

EV2 - Barograms

Follow us

Contact us