Variations in the Intensity and Spatial Extent of Tropical Cyclone Precipitation

Touma, Danielle; Stevenson, Samantha; Camargo, Suzana J.; Horton, Daniel E.; Diffenbaugh, Noah S.

doi:10.1029/2019GL083452

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i

Variations in the Intensity and Spatial Extent of Tropical Cyclone Precipitation

2019
By Touma, Danielle ; Stevenson, Samantha ; Camargo, Suzana J. ; ...
Source: Geophysical ResearchLetters,46, 13,992–14,002.

[PDF-1.13 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Touma, Danielle ; Stevenson, Samantha ; Camargo, Suzana J. ; Horton, Daniel E. ; Diffenbaugh, Noah S.

Touma, Danielle ; Stevenson, Samantha ; Camargo, Suzana J. ; Horton, Daniel E. ; Diffenbaugh, Noah S. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office)

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office) Less -
Description:

The intensity and spatial extent of tropical cyclone precipitation (TCP) often shapes the risk posed by landfalling storms. Here we provide a comprehensive climatology of landfalling TCP characteristics as a function of tropical cyclone strength, using daily precipitation station data and Atlantic U.S. landfalling tropical cyclone tracks from 1900 to 2017. We analyze the intensity and spatial extent of >= 1 mm/day TCP (Z(1)) and >= 50 mm/day TCP (Z(50)) over land. We show that the highest median intensity and largest median spatial extent of Z(1) and Z(50) occur for major hurricanes that have weakened to tropical storms, indicating greater flood risk despite weaker wind speeds. We also find some signs of TCP change in recent decades. In particular, for major hurricanes that have weakened to tropical storms, Z(50) intensity has significantly increased, indicating possible increases in flood risk to coastal communities in more recent years.
Keywords:

[+]

Atlantic Hurricane Activity Atlantic Tropical Cyclones Climate El-nino Frequency Geology Geostatistics Landfall Oscillation Precipitation Data Rainfall Station Trends Tropical Cyclone Precipitation Variability
Source:

Geophysical ResearchLetters,46, 13,992–14,002.
DOI:

https://doi.org/10.1029/2019GL083452
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4310277 ; Grant no. NA15OAR4310095 ; Grant no. NA16OAR4310079

Grant no. NA18OAR4310277 ; Grant no. NA15OAR4310095 ; Grant no. NA16OAR4310079 Less -
Place as Subject:

Atlantic ; Eastern United States

Atlantic ; Eastern United States Less -
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:50dd3da1e2d78287951724f7590ac6d099d564094d02196c132a2d8e11e9e6c3
Download URL:

https://repository.library.noaa.gov/view/noaa/28685/noaa_28685_DS1.pdf
File Type:

	Available dataset	htm
	Available dataset	htm

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