[NARCCAP-discuss] Questions on data for our project.

[Obeysekera, Jayantha]

Hi Ping,

I have some experience with the variables you have asked about. I believe precipitation needs to converted from kg/(sec.m^2) to whatever units you need.  The units of other variables can be found on the NARCCAP site.  I used most of the variables to compute Evapotranspiration for Florida region. Chapter 4 of the report (see link below) has the details of NARRCAP work. For relative humidity I used the NCL routines. I used all data from 3-hourly data in Table 2 and converted them into the daily values.  I did not use cloud cover but found out that solar radiation is overestimated during summer (in Florida) because the RCMs, at least in my opinion, do not simulate the cloudiness correctly.

http://my.sfwmd.gov/portal/page/portal/xrepository/sfwmd_repository_pdf/ccireport_publicationversion_14jul11.pdf


Obey

Jayantha Obeysekera
Hydrologic & Environmental Systems Modeling
South Florida Water Management District
(561) 682 6503 (Office)
(561) 722 9994 (cell)


-----Original Message-----
From: narccap-discuss-bounces at mailman.ucar.edu [mailto:narccap-discuss-bounces at mailman.ucar.edu] On Behalf Of ping yang
Sent: Sunday, March 11, 2012 1:19 PM
To: narccap-discuss at mailman.ucar.edu
Subject: [NARCCAP-discuss] Questions on data for our project.

Dear NARCCAP users,

I need data for the following items with daily step and monthly step:

*Precipitation -Units (mm)

*Surface Air temperature -Units (°C)

*Surface Air pressure -Units (mbars)

*Humidity (relative )

*Wet bulb temperature -Units (°C)

*Cloud Cover

I looked into the NARCCAP data tables, actually there are so much
information that I am a little confusing,  e.g., I found the Max/Min
Surface air temperature data in daily but the instantaneous surface
air temperature data in 3 hours, and some data like Wet bulb
temperature I don't know how it was classified or named in the NARCCAP
dataset.  Is here someone has the same experiences who can give me
some instructiona on how to get those data or some suggestion on how
to process the available data?

All the Best,

Ping
--
Ping Yang, Ph.D.
Postdoctoral Research Associate
CUNY Environmental Crossroads Initiative
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