Identification

Title

NCEP ADP ETA / NAM Upper Air Observation Subsets

Alternative title(s)

d351001

Abstract

NCEP ADP ETA / NAM Upper Air Observation Subsets are composed of a regional synoptic set of upper air reports centered over North America, operationally collected by the National Centers for Environmental Prediction (NCEP). These include radiosondes, pibals and aircraft reports from the Global Telecommunications System (GTS) and satellite data from the National Environmental Satellite Data and Information Service (NESDIS). The reports can include pressure, geopotential height, temperature, dew point depression, wind direction and speed. Data may be available at up to 20 mandatory levels from 1000 millibars to 1 millibar, plus a few significant levels. Report time intervals range from 3 hourly to 12 hourly. These data are the primary input to the EDAS / NAM Data Assimilation System (NDAS starting January 23, 2005). DS351.0 [https://rda.ucar.edu/datasets/ds351.0/] provides global data coverage over the same time period. This data set is no longer updated. If you have a need for North American data that is not met by DS351.0 NCEP ADP Global Upper Air Observational Weather Data, October 1999 - continuing [https://rda.ucar.edu/datasets/ds351.0/], contact the RDA for alternatives.

Resource type

dataset

Resource locator

https://gdex.ucar.edu/datasets/d351001/

protocol: https

applicationProfile: browser

name: Dataset Description

description: Related Link

function: information

https://gdex.ucar.edu/datasets/d351001/dataaccess/

protocol: https

applicationProfile: browser

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

2014-10-16

Keyword set

keyword value

WEATHER STATIONS > WEATHER STATIONS

Ships

FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS

GROUND STATIONS > GROUND STATIONS

METEOROLOGICAL STATIONS > METEOROLOGICAL STATIONS

OCEAN WEATHER STATIONS

AIRCRAFT

MOVING SHIPS

FIXED SHIPS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-09-19

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS

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

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS

EARTH SCIENCE > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-09-19

Geographic location

West bounding longitude

-180

East bounding longitude

180

North bounding latitude

90

South bounding latitude

-90

Temporal reference

Temporal extent

Begin position

2000-10-23

End position

2017-03-19

Dataset reference date

date type

publication

effective date

2004-11-03

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

NSF NCAR - Geoscience Data Exchange

full postal address

National Center for Atmospheric Research

CISL/DECS

P.O. Box 3000

Boulder

80307

U.S.A.

telephone number

(303)-497-1217

facsimile number

303-497-1291

email address

tcram@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NSF NCAR Geoscience Data Exchange

full postal address

NSF National Center for Atmospheric Research

CISL/DECS

P.O. Box 3000

Boulder

80307

U.S.A.

facsimile number

303-497-1291

email address

datahelp@ucar.edu

web address

https://gdex.ucar.edu/

name: NSF NCAR Geoscience Data Exchange

description: The NSF NCAR Geoscience Data Exchange - Integrated Research Data Commons (GDEX) contains an extensive collection of meteorological, atmospheric composition, and oceanographic observations and model outputs to support Earth System Science research. GDEX supports "data proximate" computational research through its integration with NSF NCAR High Performance Compute services [https://arc.ucar.edu/resources], which are made accessible to US researchers through a range of allocations opportunities [https://arc.ucar.edu/xras_submit/opportunities].

function: downlaod

responsible party role

pointOfContact

Metadata date

2025-10-03T00:31:27Z

Metadata language