Skip to data content Skip to data search

CEPEX: NASA ER-2 Lyman Alpha Hygrometer Data

Summary

This dataset contains water vapor measurements from the Harvard University Lyman Alpha instrument aboard the ER-2 for 9 missions during CEPEX. The instrument used the techniques of photofragment fluorescence combined with dual path absorption to measure water vapor concentrations ranging from 1013 to 1016 molecules/cubic centimeters at pressures from 50 to 500 mb. The detection scheme utilized the Lyman-Alpha photons (121.6 nanometers) to photo- dissociate water vapor and produce excited OH molecules which emit photons that are detected by a photomultiplier near 314 nanometers. Units are in ppmv. Principal Investigators were Weinstock, Dessler, Hintsa, and Anderson (Harvard University).

Data access

Additional information

Identifier
Data Quality final
Versions
  • 1.0 (2006-07-26)
Subscribe Subscribe to receive email when new or updated data is available.
Related projects
Spatial Type point
Frequency 1 second
Language English
Categories
Platforms
Instruments
GCMD Science Keywords Expand keywords

Temporal coverage

Begin datetime 1993-03-17 00:00:00
End datetime 1993-04-05 23:59:59

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 20.00, Minimum (South) Latitude: -20.00
Minimum (West) Longitude: -140.00, Maximum (East) Longitude: 140.00

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

Citation

Example citation following ESIP guidelines:

Weinstock, E., et al. 2006. CEPEX: NASA ER-2 Lyman Alpha Hygrometer Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/2RRX-RFPH-EA11. Accessed 07 Dec 2022.

Today's date is shown: please replace with the date of your most recent access.

Additional citation styles

The citation text below is from the DataCite Content Resolver service and may take a few seconds to load. The styles and locales are obtained from CrossCite, which also provides a citation formatter. See ReFindit for another alternative. Formatting is not perfect: please verify and edit before use. Today's date is shown: please replace with the date of your most recent access.

Style: Locale:

Ancillary information

Metadata download

Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "Downloads"