Wind driven rain data

5 posts / 0 new
Last post

Dear all,

For the verification of a model to estimate wind driven rain (WDR) I would like to use WDR data from different microclimates (rural, (sub)urban). I have access to several data sets of free field or airfield WDR measurements from different locations and the results from a measurement campaign in Vancouver. To better evaluate the model I would like to use measured data from one or more locations with different microclimates, not being free field or airfield sites.

My question is if someone knows if measurements are available of wind driven rain in one or more microclimates?

Kind regards,

Roel Tersteeg MSc

PhD-student
Building Energy Research Group
School of Architecture, Building and Civil Engineering
Loughborough University
T: +44 77 56 10 90 54
E: R.M.Tersteeg at lboro.ac.uk

Roel Tersteeg's picture
Offline
Joined: 2018-07-05
Reputation: 0

What is your definition for Wind-driven Rain?? Practically all weather
station reports, including official stations available in NOAA's ISD as
well as unofficial "Personal Weather Stations" hosted on
WeatherUnderground, contain information on liquid precipitation (LP),
wind speed, and wind direction.? Can the WDR be calculated from these
standard parameters, maybe as the LP * f(wspd, wdir) ?

Joe

Joe Huang's picture
Offline
Joined: 2011-09-30
Reputation: 406

Hi Roel and Joe

Did you look at available data from Met Eireann? There is a paper regarding
WDR index calculation method that may be of your interest. See below link.

https://www.met.ie/climate/what-we-measure/rainfall#

Regards
Luis

On Wed 4 Jul 2018, 22:12 Joe Huang via Bldg-sim, <

Luis Miguel Blanes Restoy's picture
Joined: 2012-06-07
Reputation: 0

Luis,

Thanks for the tip.? I went to the link, which by the way is for the Irish Meteorological
Service,? and read that it said, "The amount of rain received by a wall correlates fairly
well with the product of rainfall and the component of the wind speed normal to the wall.
This led Lacy and Shellard to propose the product of the mean annual rainfall and the mean
annual wind speed as a driving rain index which is proportional to the total rainfall
driven in one year on to a vertical surface always facing the wind",? which is
functionally quite close to what I was envisioning, i.e., WDR = LP * f(wspd, wdir),? where
LP is Liquid Precipitation or Rainfall. However, when I clicked on the link to the actual
paper cited,? the Meteireann web site responded that? "404: Page not found".? Therefore, I
still don't know the function that converts LP or rainfall to WDR.

Joe

Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 205A
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
http://weather.whiteboxtechnologies.com for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"

Joe Huang's picture
Offline
Joined: 2011-09-30
Reputation: 406

Joe
Try this link
https://es.scribd.com/document/346851908/MET-Driving-Rain-Index-IRELAND#close_user_settings_menu
Regards
Luis

On Thu 5 Jul 2018, 04:28 Joe Huang,
wrote:

Luis Miguel Blanes Restoy's picture
Joined: 2012-06-07
Reputation: 0