Warm Season Precipitation Analyses from the NAME Event Raingauge Network (NERN)
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Warm Season Precipitation Analyses from the NAME Event Raingauge Network (NERN) ' 02- ' 03 PowerPoint PPT Presentation


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Warm Season Precipitation Analyses from the NAME Event Raingauge Network (NERN) ' 02- ' 03. NERN Project Team: NCAR, U. Arizona, U. Sonora, IMADES, ITSON April, 2004 NAME Homepages: http://www.imades.cideson.mx/NAME/ http://www.joss.ucar.edu/name http://www.joss.ucar.edu/name/NHWG/.

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Warm Season Precipitation Analyses from the NAME Event Raingauge Network (NERN) ' 02- ' 03

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Warm Season Precipitation Analyses from the NAME Event Raingauge Network (NERN) '02-'03

NERN Project Team: NCAR, U. Arizona, U. Sonora, IMADES, ITSON

April, 2004

NAME Homepages: http://www.imades.cideson.mx/NAME/

http://www.joss.ucar.edu/namehttp://www.joss.ucar.edu/name/NHWG/


NERN : Shuttleworth, Watts, JimenezGochis, Garatuza

  • 100 Event logging, tipping bucket raingages

  • 6 major W-E transects traversing SMO

  • Major improvement in topographic and temporal sampling of precipitation

  • Installed 2002-2003, in operation through spring of 2006

  • Not available in real-time

Contacts: [email protected], [email protected],

[email protected]


T6

T5

T4

T3

T2

T1


Precipitation Analyses: Diurnal Cycle of Precipitation Frequency


Precipitation Analyses: Topographic Dependence of the Diurnal Cycle of Wet Day Rain Rate


Diurnal Cycle Averaged Across Transects


Gulf Surges During 2003


Issues related to NAM Precipitation Analyses

  • What are the most appropriate metrics for comparing/ validating precipitation estimates from models and remotely sensed platforms with NERN and other station-based datasets?

    • Merged datasets

    • Area integrations (NAME verif. zones, gridded anal., watershed avgs., etc.)

    • Climatology vs. case studies

    • Linking precipitation character w/ forcing mechanisms

  • Exactly how does precipitation propagate off of the SMO?

    • Modeling and NERN evidence that precipitation may move away from SMO to west AND east

  • Extending analyses to encompass larger N. American region


Covariance between NAMS and US?:

Cont. US

  • SW – Cont. US correlations are v. weak and explain v. little of overall σ2

  • However, statistically significant evidence for weak anit-correl at lag 0 with transition to pos. correls at (US) lag 4

SW


See You This Summer!Nos vemos este verano!


Precipitation Analyses: 2002 Statistics


August 2002 – PHASE I Gauges Only

Precipitation Analyses: Topographic Dependence of the Diurnal Cycle of Wet Day Rain Rate


Precipitation Analyses: Elevation Dependence of the Diurnal Power Spectrum

Mtn. Stations:

Yecora – 1543m

Ej. El Frijol – 1581m

La Hermita – 2716m

Plains Stations:

Tecoripa – 402m

Pericos – 71m

Mazatlan – 2m


Precipitation Analyses: Diurnal Cycle of Precipitation Frequency


Precipitation Analyses: Diurnal Cycle of Intensity


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