GHRC News

Four GPM Satellite Simulated Orbit Datasets Published

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.

Web Server Upgrade to IPv6

The GHRC has completed the MSFC-mandated upgrade of all web servers to Internet Protocol version 6 (IPv6). IPv6 was developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated problem of IPv4 address exhaustion.

GHRC Represented at the Earth Cube Real-time Workshop

Dr. Sara Graves and Ken Keiser represented GHRC at the Earth Cube Real-time Workshop in Boulder, CO, June 17-18. The workshop was held at UCAR and sponsored by NSF. GHRC presentations covered data management, visualization and collaboration activities for GPM Ground Validation; data provenance tools developed for the AMSR-E SIPS at GHRC; and new data search and analysis technologies being developed in the GHRC Innovations Laboratory.

GCPEX CoSMIR Dataset Published

GCPEX logo GHRC has published the GPM Ground Validation Compact Scanning Millimeter-wave Imaging Radiometer (CoSMIR) GCPEx dataset. The CoSMIR plays the role as an airborne high-frequency simulator for the GPM Microwave Imager (GMI), which will launch in 2014. The CoSMIR was modified with a new scan mode to acquire both conical and cross-track scan data simultaneously in a given flight satisfying the requirements of the Precipitation Measurement Mission (PMM) algorithm development team. This CoSMIR dataset provides well-calibrated radiometric data from 9 channels between 50-183GHz with the accuracy on the order of +-1K. All channels besides the 89 and 165.5 GHz are horizontally polarized.

NAMMA Lightning ZEUS Data Guide Updated

GHRC has updated the guide for the NAMMA Lightning ZEUS Data dataset with information from the Principal Investigator. The NAMMA Lightning ZEUS Data gathered lightning data from the World-ZEUS Long Range Lightning Monitoring Network Data obtained from sferics located at thirteen ground stations spread across the European and African continents and Brazil for the NASA African Monsoon Multidisciplinary Analyses (NAMMA) campaign held in 2006 in the Cape Verde Islands, 350 miles off the coast of Senegal in west Africa.

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