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From Apache Wiki <wikidi...@apache.org>
Subject [Incubator Wiki] Update of "ClimateProposal" by ChrisMattmann
Date Sat, 26 Jan 2013 07:12:52 GMT
Dear Wiki user,

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The "ClimateProposal" page has been changed by ChrisMattmann:
http://wiki.apache.org/incubator/ClimateProposal?action=diff&rev1=9&rev2=10

Comment:
- finish draft abstract

  === Abstract ===
  The Apache Open Climate Workbench proposal desires to contribute an existing community of
software related to the analysis and evaluation of climate models, and related to the use
of remote sensing data in that process. 
  
+ Specifically, we desire to bring (to start) a fundamental software toolkit for analysis
and evaluation of climate model output against remote sensing data. The toolkit is called
the Regional Climate Model Evaluation System (RCMES). RCMES provides two fundamental components
for the easy, intuitive comparison of climate model output against remote sensing data. The
first component called RCMED (for "Regional Climate Model Evaluation Database") is a scalable
cloud database that decimates remote sensing data and renalysis data related to climate using
Apache OODT extractors, Apache Tika, etc. These transformations make traditionally heterogeneous
upstream remote sensing data and climate model output homogeneous and unify them into a data
point model of the form (lat, lng, time, value, height) on a per parameter basis. Latitude
(lat) and Longitude (lng) are in WGS84 format, but can be reformatted on the fly. time is
in ISO 8601 format, a string sortable format independent of underlying store. value carries
with it units, related to interpretation and height allows for different values for different
atmospheric vertical levels. All of RCMES is built on Apache OODT, Apache Sqoop/Apache Hadoop
and Apache Hive, along with hooks to PostGIS and MySQL (traditional relational databases).
The second component of the system, RCMET (for "Regional Climate Model Evaluation Toolkit")
provides facilities for connecting to RCMED, dynamically obtaining remote sensing data for
a space/time region of interest, grabbing associated model output (that the user brings, or
from the Earth System Grid Federation) of the same form, and then regridding the remote sensing
data to be on the model output grid, or the model output to be on the remote sensing data
grid. The regridded data spatially is then temporally regridded using techniques including
seasonal cycle compositing (e.g., all summer months, all Januaries, etc.), or by daily, monthly,
etc. The uniform model output and remote sensing data are then analyzed using pluggable metrics,
e.g., Probability Distribution Functions (PDFs), Root Mean Squared Error (RMSE), Bias, and
other (possibly user-defined) techniques, computing an analyzed comparison or evaluation.
This evaluation is then visualized by plugging in to the NCAR NCL library for producing static
plots (histograms, time series, etc.)
- Specifically, we desire to bring (to start) two fundamental toolkits for analysis and evaluation
of climate model output against remote sensing data. The first toolkit is the Regional Climate
Model Evaluation System (RCMES). RCMES provides two fundamental components for the easy, intuitive
comparison of climate model output against remote sensing data. The first tool is a scalable
cloud database built on Apache OODT, Apache Sqoop/Apache Hadoop and Apache Hive, along with
hooks to PostGIS and MySQL (traditional relational databases). called RCMED (for "Regional
Climate Model Evaluation Database") 
-  and CLIMATE is based on, and we will bring it to Apache because, and this is important
why.
  
- TBD
+ We also have performed a great deal of work in packaging RCMES to make the system easy to
deploy. We have working Virtual Machines (VMWare VMX and Virtual Box OVA compatible formats)
and we also have an installer built on Python Buildout (http://buildout.org/) called "Easy
RCMET" for dynamically constructing the RCMET toolkit.
+ 
+ RCMES is currently supporting a number of recognized climate projects of (inter-)national
significance. In particular, RCMES is supporting the [U.S. National Climate Assessment (NCA)
activities|http://www.globalchange.gov/what-we-do/assessment] on behalf of NASA's contribution
to the NCA; is working with the [North American Regional Climate Change Assessment Program
(NARCCAP)|http://www.narccap.ucar.edu/]; and is also working with the international [Coordinated
Regional Downscaling Experiment (CORDEX)|http://wcrp-cordex.ipsl.jussieu.fr/]. 
  
  === Proposal ===
  The What is CLIMATE, and what are we proposing to do?

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