Fw: NASA SSE Release 5 Available [RE-wrenches]

[Allan Sindelar]

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Wrenches,
NASA updates just announced. I haven't tried this yet, just passing on the info. See items 3) and 5) below. Feedback to the list helps us all.
Allan at Positive E

----- Original Message ----- 
Sent: Thursday, December 30, 2004 11:38 AM
Subject: NASA SSE Release 5 Available


The Atmospheric Sciences Data Center at NASA Langley Research Center 
in collaboration with the Surface meteorology and Solar Energy (SSE) data 
provider announces the availability of SSE Release 5. 

The following represents the major changes found in SSE Release 5 
relative to SSE Release 4:

1) Seventy-two solar radiation and cloud parameters were replaced 
with true 1 x 1 degree data.  SSE Release 4 was on a 1 x 1 degree grid 
interpolated from 2.5 x 2.5 degree data.

2) SSE Release 5 horizontal surface insolation values are calculated 
using version 2.1 of the Pinker and Laszlo algorithm (see SSE Methodology 
for original algorithm, Ref. [3]) as processed under the NASA/Global Energy 
and Water Cycle Experiment (GEWEX) Surface Radiation Budget (SRB) 
project.  The International Satellite Cloud Climatology Program (ISCCP) 
DX data are used as input into the algorithm and to derive the cloud 
information including cloud diurnal cycle.  Additional parameters 
available to the user and calculated on the fly via the SSE web interface 
also inherit these improvements. 

3) A new wind parameter, the Monthly Averaged Wind Speed Adjusted 
For Height And Vegetation Type, can be calculated for 17 different surface 
vegetation types and for any height from 10 to 300 meters. The vegetation 
type and height are specified by the user.  The Gipe Power Law is used 
to calculate a new wind speed from the wind speed at 50 meters above 
the surface that is computed from output of the Goddard Earth Observing 
System (GEOS) version 1 analysis.  Validation of surface winds using this 
approach at airports and other surfaces is provided in the SSE Accuracy 
and Methodology sections. Global/regional plots for wind speed at 100 and 
150 meters are also available.

4) Another new parameter is monthly averaged precipitation from the Global 
Precipitation Climatology Project (GPCP) Version 2 Combined Precipitation 
Data Set.

5) Release 5 includes an interface between the SSE data set and the 
Hybrid Optimization Model for Electric Renewables (HOMER). The HOMER 
software, used for designing stand alone electric power systems, seamlessly 
ingests SSE solar radiation data without a web browser. SSE/HOMER data 
tables are also presented on the SSE web site.

A more detailed discussion of SSE Release 5 is available in the Methodology 
section of the SSE web site:

                http://eosweb.larc.nasa.gov/sse/

The SSE web site currently is supported through NASA's Earth-Sun System 
Applied Sciences Program.  More information about this program can be found 
at the web site:

http://science.hq.nasa.gov/earth-sun/applications/


SSE is supported through the Prediction of Worldwide Energy Resource 
(POWER) project under the Energy Management program, one of Twelve 
Applications of National Priority. Continued and future support to expand the 
SSE data portal to include parameters derived from more recent satellite 
observations, as well as to develop prototypes relevant to other energy-related 
themes (e.g., architectural and agricultural industries) will depend, in part, on 
our ability to quantify/demonstrate the impact the SSE data is having in your 
applications. To that end we would certainly appreciate your comments 
about the importance and usefulness of SSE to your work. We would also 
appreciate comments regarding the savings of time and money because 
of SSE. If you have used SSE in a Decision Support System of any type 
(i.e., renewable energy system design, system maintenance, project 
planning, policy making, etc.) or in a publication, we would appreciate 
receiving any comments regarding the impact that the data has had 
to your work. Suggestions for future improvements are welcome.


*********************
HOW TO CONTACT US 
For information regarding our data holdings or for assistance, please contact:

NASA Langley Atmospheric Sciences Data Center 
User and Data Services Office
Mail Stop 157D, 2 S. Wright Street 
Hampton, VA 23681-2199 
Phone: 757-864-8656 
Fax: 757-864-8807 
E-mail: larc at eos.nasa.gov 
http://eosweb.larc.nasa.gov 

[Non-text portions of this message have been removed]

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