Papers by Christopher Lynnes
Geoscience and …, Jan 1, 2009
ABSTRACT-NASA Earth Sciences Division (ESD) has made great investments in the development and mai... more ABSTRACT-NASA Earth Sciences Division (ESD) has made great investments in the development and maintenance of data management systems and information technologies, to maximize the use of NASA generated Earth science data.-With information management system infrastructure in place, mature and operational, very small delta costs are required to fully support data archival, processing, and data support services required by the recommended Decadal Study missions.
Abstract Fk analyses of short-period recordings of both explosion and earthquake sources at the h... more Abstract Fk analyses of short-period recordings of both explosion and earthquake sources at the high-frequency NORESS array indicate secondary arrivals from a near-receiver source about 25 to 30 km southwest of the array. Use of residual seismograms, derived by subtracting the beamed record from each array channel, improved the identification of the same scatterer.
ABSTRACT The interpretation of science data is critically dependent on the underlying quality of ... more ABSTRACT The interpretation of science data is critically dependent on the underlying quality of the data. However, the volume of Earth Science remote sensing data has grown so large that it is becoming increasingly difficult to assess the quality of all of the data. The problem is compounded by the evolution of and need for increasingly automated knowledge extraction: in near-real-time applications there may be simply no time to incorporate a human sanity check on the results.
With the recent attention to climate change and proliferation of remote-sensing data utilization,... more With the recent attention to climate change and proliferation of remote-sensing data utilization, climate model and various environmental monitoring and protection applications have begun to increasingly rely on satellite measurements. Research application users seek good quality satellite data, with uncertainties and biases provided for each data point. However, remote-sensing quality issues are addressed rather inconsistently and differently by different communities.
Online tools, such as those pioneered by Google Earth (GE), are changing the way in which scienti... more Online tools, such as those pioneered by Google Earth (GE), are changing the way in which scientists and the general public interact with three-dimensional geospatial data in a virtual environment. However, while GE provides a number of features to facilitate geospatial data visualization, there is currently no readily available method for rendering vertical geospatial data derived from Earth—viewing remote sensing satellites as an orbit curtain seen from above.
Abstract-The Information Technology and Systems Center (ITSC) at the University of Alabama in Hun... more Abstract-The Information Technology and Systems Center (ITSC) at the University of Alabama in Huntsville has teamed with the Goddard Earth Sciences Data and Information Services Center (GES DISC) to develop and demonstrate the use of distributed web service technologies for science data analysis solutions. Many science data repositories are now providing online access to vast amounts of data.
Abstract: The OpenGIS standard for web-based geographic information systems (GIS) has shown promi... more Abstract: The OpenGIS standard for web-based geographic information systems (GIS) has shown promise for implementing wide-area distributed GIS. However, making existing numerical data available as maps can be timeconsuming and expensive, especially for large data archives. The map transformation process requires extraction of a subset from data files, interpolation, representation as a raster image and in some cases reprojection.
Abstract: Online tools, pioneered by the Google Earth (GE), are facilitating the way in which sci... more Abstract: Online tools, pioneered by the Google Earth (GE), are facilitating the way in which scientists and general public interact with geospatial data in real three dimensions. However, even in Google Earth, there is no method for depicting vertical geospatial data derived from remote sensing satellites as an orbit curtain seen from above. Here, an effective solution is proposed to automatically render the vertical atmospheric data on Google Earth.
Abstract: We investigated various issues related to the propagation of seismic waves in Eurasia d... more Abstract: We investigated various issues related to the propagation of seismic waves in Eurasia during the period 16 Aug 1990-15 Dec 1992. This final report covers the research accomplished under the 2 tasks that have not been reported previously in the first annual report PL-TR-92-2042. Section I describes briefly how we derived a spherically symmetric velocity structure for the Garm region in Central Asia with travel-time residuals of regional phases recorded at the IRIS station GAR and and the CDSN station WMQ.
Abstract: A comparison of the spectra of nuclear shots detonated below and above the water table ... more Abstract: A comparison of the spectra of nuclear shots detonated below and above the water table (WT) is made by analysis of mostly the regional phase Pn recorded at two common stations. Parameters derived from each record include estimates of corner frequency F sub c and the low-frequency spectral level A sub 0, after the spectra have been corrected for the effects of spatial attenuation. The time-domain measurements of A/T, a measure of m sub b, are also made on each observed record.
Abstract Cloud Computing technology has been used to offer high-performance and low-cost computin... more Abstract Cloud Computing technology has been used to offer high-performance and low-cost computing and storage resources for both scientific problems and business services. Several cloud computing services have been implemented in the commercial arena, eg Amazon's EC2 & S3, Microsoft's Azure, and Google App Engine. There are also some research and application programs being launched in academia and governments to utilize Cloud Computing.
Abstract Atmospheric Infrared Sounder (AIRS) Near-Real Time (NRT) data from the Land Atmosphere N... more Abstract Atmospheric Infrared Sounder (AIRS) Near-Real Time (NRT) data from the Land Atmosphere Near real time Capability for EOS (LANCE) provide the information on the global and regional atmospheric state with very low latency. An open and interoperable platform is useful to facilitate access to and integration of LANCE AIRS NRT data. This paper discusses the use of open-source software components to build Web services for publishing and accessing AIRS NRT data in the context of Service Oriented Architecture (SOA).
The Rocket Propulsion Test-Automated Management System provides a central location for managing a... more The Rocket Propulsion Test-Automated Management System provides a central location for managing activities associated with Rocket Propulsion Test Management Board, National Rocket Propulsion Test Alliance, and the Senior Steering Group business management activities. A set of authorized users, both on-site and off-site with regard to Stennis Space Center (SSC), can access the system through a Web interface. Web-based forms are used for user input with generation and electronic distribution of reports easily accessible.
Abstract The Goddard Space Flight Center (GSFC) Version 0 (V0) Distributed Active Archive Center ... more Abstract The Goddard Space Flight Center (GSFC) Version 0 (V0) Distributed Active Archive Center (DAAC) has been developed to support existing and pre Earth Observing System (EOS) Earth science datasets, facilitate the scientific research, and test Earth Observing System Data and Information System (EOSDIS) concepts. To ensure that no data is ever lost, each product received at GSFC DAAC is archived on two different media (VHS and Digital Linear Tape (DLT)).
Gregory Leptoukh, IGARSS'09
Abstract-With the recent attention to climate change and proliferation of remote-sensing data uti... more Abstract-With the recent attention to climate change and proliferation of remote-sensing data utilization, climate model and various environmental monitoring and protection applications have begun to increasingly rely on satellite measurements. Research application users seek good quality satellite data, with uncertainties and biases provided for each data point. However, different communities address remote sensing quality issues rather inconsistently and differently.
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Papers by Christopher Lynnes