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. 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

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 jimenez gochis garatuza
NERN : Shuttleworth, Watts, Jimenez Raingauge Network (NERN) Gochis, 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 Raingauge Network (NERN)

T5

T4

T3

T2

T1



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


Diurnal cycle averaged across transects
Diurnal Cycle Averaged Across Transects Diurnal Cycle of Wet Day Rain Rate


Gulf surges during 2003
Gulf Surges During 2003 Diurnal Cycle of Wet Day Rain Rate


Issues related to nam precipitation analyses
Issues related to NAM Precipitation Analyses Diurnal Cycle of Wet Day Rain Rate

  • 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
Covariance between NAMS and US?: Diurnal Cycle of Wet Day Rain Rate

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
See You This Summer! Diurnal Cycle of Wet Day Rain RateNos vemos este verano!


Precipitation Analyses: 2002 Statistics Diurnal Cycle of Wet Day Rain Rate


August 2002 – PHASE I Gauges Only Diurnal Cycle of Wet Day Rain Rate

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


Precipitation analyses elevation dependence of the diurnal power spectrum

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




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