Skip to main content

Description

This dataset provides the concentrations of water measured by the Diode Laser Hygrometer (DLH) during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission from 2016 - 2018. The DLH measures the water vapor (H2O(v)) in the atmosphere by wavelength modulated differential absorption spectroscopy of an isolated rovibrational line. The measurements include water vapor mixing ratio in parts-per-trillion-by-volume (pptv) and relative humidity in percent.

Product Summary

Platforms
NASA DC-8
Instruments
DLH
Projects
ATom
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2016-07-29 to 2018-05-21
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C4290778465-ORNL_CLOUD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
2
Published
Updated
Science Keywords
Air Quality ,
Humidity ,
Water Vapor

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

DISKIN, G. S., & DIGANGI, J. P. (2019). ATom: L2 In Situ Atmospheric Water Vapor from the Diode Laser Hygrometer (DLH). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1710 Date Accessed: 2026-09-12

Documents

No Results

QUESTIONS & SUPPORT

Have a question?

Get help with NASA Earth science data, datasets, tools, services, and metadata on the Earthdata Forum. Experienced staff in the data user community review and answer questions.

Get help on Earthdata Forum
Earthdata
Forum