Skip to main content
USGS - science for a changing world

Extreme changes in stable hydrogen isotopes and precipitation characteristics in a landfalling Pacific storm

Dates

Year
2008

Citation

Coplen, Tyler B, Neiman, Paul J, White, Allen B, Landwehr, Jurate M, Ralph, F Martin, and Dettinger, Michael D, 2008, Extreme changes in stable hydrogen isotopes and precipitation characteristics in a landfalling Pacific storm: Geophysical Research Letters, v. 35, iss. 21.

Summary

With a new automated precipitation collector we measured a remarkable decrease of 51‰ in the hydrogen isotope ratio (δ 2H) of precipitation over a 60-minute period during the landfall of an extratropical cyclone along the California coast on 21 March 2005. The rapid drop in δ 2H occurred as precipitation generation transitioned from a shallow to a much deeper cloud layer, in accord with synoptic-scale ascent and deep “seeder-feeder” precipitation. Such unexpected δ 2H variations can substantially impact widely used isotope-hydrograph methods. From extreme δ 2H values of −26 and −78‰, we calculate precipitation temperatures of 9.7 and −4.2°C using an adiabatic condensation isotope model, in good agreement with temperatures estimated [...]

Contacts

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Fri Apr 19 12:45:35 MDT 2013 by processing file <b>Physical Chemistry of Stable Isotope Fractionation in Hydrologic Processes.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd337f">https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd337f</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1029/2008GL035481

Citation Extension

journalGeophysical Research Letters
parts
typeVolume
value35
typeIssue
value21
citationTypeJournal Article

Item Actions

View Item as ...

Save Item as ...

View Item...