GHRC News

Sample browse imageGHRC has released the GPM Ground Validation Meteorological Tower Environment Canada GCPEx dataset as part of the GPM Cold-season Precipitation Experiment (GCPEx) where  data was gathered over the Ontario region of Canada in 2012 from Jan 15 through March 1. This dataset  provides temperature, relative humidity, 10m winds, pressure and solar radiation data collected by a suite of standard meteorological instruments attached to a 10m met tower.  The observation station was assembled by Automated Transportable Meteorological Observation Station (ATMOS). Browse images are available on-line.

 

Dr. Sara Graves represented the GHRC at the International Council for Science : Committee on Data for Science and Technology (CODATA) Executive Committee meeting in Paris the week of April 14th as the Secretary General of CODATA.  There were discussions with Dr. Steven Wilson, Executive Director of The International Council for Science (ICSU), about Future Earth and the data aspects of that large 10 year program.  She also met with some representatives from the World Data System on collaborations on Future Earth and several other activities.  Lastly, a presentation titled ‘Using GLIDER for Data Intensive Science’ by Sara Graves, Todd Berendes and Rahul Ramachandran was made at the European Geosciences Union (EGU) General Assembly in Vienna, Austria on April 8th, 2013.

 

Rahul Ramachandran presenting at a recent ESIP Federation meeting

Dr. Rahul Ramachandran has been elected to serve as the chair of the IEEE Geosciences & Remote Sensing Society's (GRSS) Data Archiving and Distribution Technical Committee (DAD TC) for a two-year term.  This committee provides recommendations and responses to issues related to the archiving and distribution of remotely sensed geospatial and geotemporal data.  More information is available at the committee’s web site [http://www.grss-ieee.org/community/technical-committees/data-archival-distribution/].  Hampapuram Ramapriyan of NASA ESDIS is the outgoing DAD TC Chair.  Dr. Ramachandran is a senior research scientist with the University of Alabama in Huntsville’s Information Technology and Systems Center (ITSC) and the Global Hydrology Resource Center, a NASA data center jointly operated by Marshall Space Flight Center and ITSC.

Data album for Hurricane Igor

Helen Conover and Rahul Ramachandran attended a Browse Imagery, Visualization, Data Discovery Technical Interchange Meeting in Hampton, VA, sponsored by NASA's Earth Science Data and Information Systems project.  The meeting was hosted by the NASA Langley Atmospheric Science Data Center, and involved several Earth science data centers including the Global Hydrology Resource Center, a partnership between NASA MSFC and UAH ITSC.  Ms. Conover presented systems currently in operation at GHRC, while Dr. Ramachandran showed current ITSC research slated to be adopted at GHRC in the future. Discussions with the other DAACs and the GIBS team explored possibilities for future collaboration.

 

GHRC has published 4 satellite simulated orbit datasets for GPM Ground Validation research as part of the Global Precipitation Measurement mission.  The GPM Ground Validation Satellite Simulator Orbits Database datasets are available for several campaigns: Light Precipitation Evaluation Experiment (LPVEX), Midlatitude Continental Convective Clouds Experiment (MC3E) , Canadian Cloudsat/Calipso Validation Project (C3VP), and Tropical Warm Pool - International Cloud Experiment (TWP-ICE).  This orbital database takes account for the atmospheric profiles, the cloud/rain profiles, and the detailed surface/terrain information from the Cloud-Resolving Model (CRM) database.  Unique geometry and antenna gain patters of each sensor (GMI imager, GMI sounder, DPR Ku, DPR Ka_MA, DPR Ka_HS) are considered.  The Orbital database consists of satellite orbit parameters, geolocation of IFOV/EFOV and satellite location, and simulated L1B/L2-like parameters in satellite orbital grid.  Orbital data covers a portion of sampling right over the Cloud-resolving model (CRM) domain.  All orbital data format is NetCDF3, and contains dimensions, parameter descriptions, and parameter units. Each project's data is distributed as a separate dataset. MC3E occurred in Oklahoma, USA in 2011; LPVEX took place in Finland in 2010; C3VP experiment was held in Canada in 2007; and TWP-ICE took place in Australia in 2006.

 

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