Identification

Title

NCAR/ACOM FTIR Atmospheric Composition Dataset

Abstract

The NCAR/ACOM Optical Techniques Project operates three high spectral resolution, solar viewing FTIR instruments at Thule, Greenland (76.5ºN, 291.3ºE, 225 masl), Boulder Colorado (40.03ºN, 254.7ºE, 1612 masl) and Mauna Loa Observatory Hawaii (19.5ºN, 204.4ºE, 3396 masl). These instruments operate within the framework of the Network for the Detection of Atmospheric Composition change (NDACC). The raw data are recorded autonomously and downloaded to ACOM servers daily. They are processed at ACOM and produce vertical profiles of several trace atmospheric constituents: O3, HNO3, HCl, HF, CO, N2O, CH4, HCN, C2H6, OCS, H2CO, H2O and ClONO2. These data constitute a long-term reference dataset for tropospheric and stratospheric chemistry investigations. The data, along with metadata and full error analysis are saved to GEOMS conforming HDF files. Per our agreement with NDACC and our sponsor NASA, they are uploaded bi-yearly to the NDACC data handling facility (DHF) at www.ndacc.org. For select species, HDF files are uploaded on a near-real-time basis for the CAMS27 project which use the data for realtime air quality forecasting. Once these data are uploaded they are publicly available. The NDACC has implemented Creative Commons licensing designations for data at the DHF. These data maintain a CC0 license.

Resource type

dataset

Resource locator

https://gdex.ucar.edu/dataset/id/314ee986-c4ad-4d0b-b37e-947ff421ed2a.html

protocol: https

applicationProfile: browser

name: NCAR/ACOM FTIR Atmospheric Composition Dataset

description: Metadata 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

Keywords

Keyword set

keyword value

Dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > SULFUR COMPOUNDS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > STABLE ISOTOPES

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Keyword set

keyword value

Land-Based Platforms > Field Sites > Data Collections

Land-Based Platforms > Permanent Land Sites > Esrl Stations > Noaa Earth Science Research Laboratory Stations

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Keyword set

keyword value

Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Spectrometers > Ftir Spectrometer > Fourier Transform Infrared Spectrometer

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

1995-08-01

End position

2020-12-31

Dataset reference date

date type

publication

effective date

2021-12-07

date type

modified

effective date

2021-12-06

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

Hierarchical Data Format File (application/x-hdf)

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

UCAR/NCAR - Atmospheric Chemistry Observations and Modeling Laboratory

email address

jamesw@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

UCAR/NCAR - GDEX

email address

datahelp@ucar.edu

responsible party role

pointOfContact

Metadata date

2022-10-20T10:12:05-06:00

Metadata language