Identification

Title

U.S. Surface Data Keyed from the Climate Database Modernization Program (CDMP)

Alternative title(s)

d506000

Abstract

<p>This data set contains U.S. station surface observations that were digitized from the original forms by the Climate Database Modernization Program (CDMP).</p> <p>Data are available for more than 200 stations (mainly at airports, but also some city weather bureau offices) that made observations at hourly intervals at least during the daytime hours and often over the full 24-hour day. The general period of record for these stations is 1928-1948, though this varies by individual station. To find out what is available, see <a href="https://rda.ucar.edu/datasets/ds506.0/inventories/sao_inventory.txt"> this inventory</a>. A significant effort was made by DSS to correct errors in the digitized data, especially dates, times, and pressures. For more information about this work, see <a href="https://rda.ucar.edu/datasets/ds506.0/docs/qc-20040110.txt">this document</a>.</p> <p>We have also received data for more than 130 U.S. stations that were digitized from Form 1001. These stations, which were usually city weather bureau offices, generally took observations once, twice, or four times daily. Some stations have data back as far as late 1892. An <a href="https://rda.ucar.edu/datasets/ds506.0/inventories/form1001_inventory.txt"> inventory</a> can be viewed which shows stations and their date range coverage. These data will be made available to the community when errors in the digitized data have been corrected. </p>

Resource type

dataset

Resource locator

https://gdex.ucar.edu/datasets/d506000/

protocol: https

name: Dataset Description

description: Related Link

function: information

https://gdex.ucar.edu/datasets/d506000/dataaccess/

protocol: https

name: Data Access

description: Related Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2021-03-30

Keyword set

keyword value

WEATHER STATIONS > WEATHER STATIONS

FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS

GROUND STATIONS > GROUND STATIONS

METEOROLOGICAL STATIONS > METEOROLOGICAL STATIONS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > DEW POINT TEMPERATURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

1928-06-25

End position

1948-11-29

Dataset reference date

date type

publication

effective date

2004-09-13

Frequency of update

notPlanned

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

email address

datahelp@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NSF NCAR Geoscience Data Exchange

email address

datahelp@ucar.edu

web address

https://gdex.ucar.edu

name: NSF NCAR Geoscience Data Exchange

description: The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research.

function: download

responsible party role

pointOfContact

Metadata date

2025-10-09T01:25:29Z

Metadata language