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25. Texas Natural Resources Information System
- www.tnris.state.tx.us
- The Texas Natural Resources Information System (TNRIS), a Division of the Texas Water Development Board, is the state's clearinghouse for maps, aerial photos, and digital natural resources data. ...
- Updating/Editing GIS data remotely .
- Visit the e00 tutorial and Digital Data Help. ...
- Access a wealth of scripts, data, plug-ins, free GIS software and viewers, and tutorials. ...
- TNRIS Home News Digital Data Ordering Research Center TNRIS -Site Map Information Services Border Center Education Metadata Links About TNRIS .
- However, the Texas Geographic Information Council, a geographic data planning and coordination group serving state and regional government agencies in the State of Texas, advises the TWDB on the operation of TNRIS. ...
26. Computer bus - Wikipedia, the free encyclopedia
- en2.wikipedia.org
- (Redirected from Data bus) .
- In computer architecture, a bus is a subsystem that transfers data or power between computer components inside a computer or between computers. ...
- Also, if the program attempted to perform those other tasks, it might take too long for the program to check again, resulting in lost data. ...
- Memory and other devices would be added to the bus using the same address and data pins as the CPU itself used, connected in parallel. ...
- Communication is controlled by the CPU, which reads and writes data from the devices as if they are blocks of memory (in most cases), all timed by a central clock controlling the speed of the CPU. ...
- For instance, a disk drive controller would signal the CPU that new data was ready to be read, at which point the CPU would move the data by reading the memory that corresponded to the disk drive. ...
- This also moved much of the burden for moving the data out of the CPU and into the cards and controller, so devices on the bus could talk to each other with no CPU intervention. ... These buses also often addressed speed issues by being "bigger" in terms of the size of the data path, moving from 8-bit parallel buses in the first generation, to 16 or 32-bit in the second, as well as adding software setup (now standardised as Plug-n-play) to supplant or replace the jumpers.
- The result was that the bus speeds were now very much slower than what a modern system needed, and the machines were left starved for data. ...
- Buses can be parallel buses, which carry data words striped across multiple wires, or serial buses, which carry data in bit-serial form. The addition of extra power and control connections, differential drivers, and data connections in each direction usually means that most serial buses have more conductors than the minimum of two used in the I˛C serial bus. As data rates increase, the problems of timing skew and crosstalk across parallel buses become more and more difficult to circumvent. ... Often, a serial bus can actually be operated at higher overall data rates than a parallel bus, despite having fewer electrical connections, because a serial bus inherently has no timing skew or crosstalk. ...
- In a network, the master scheduler controls the data traffic. If data is to be transferred the requesting computer sends a message to the scheduler, which puts the request into a queue. ...
- The identified node takes the message and performs the data transfer between the two computers. Having completed the data transfer the bus becomes free for the next request in the scheduler's queue.
27. Rhode Island Geographic Information System
- www.edc.uri.edu
- All geospatial data provided are in Rhode Island stateplane feet NAD 83 projection. If you are looking for data in UTM NAD 27 projection please go here. ...
28. SSEC - Images and Data
- www.ssec.wisc.edu
- Images and Data.
- Directory of images and data at SSEC.
- Other Data and Resources .
- SSEC Data Center .
- Provides access, maintenance and distribution of real-time and archive weather and satellite data. ...
- Antarctic images, movies, and weather data.
- Antarctic satellite images and animations, synoptic weather data, iceberg images, model data. ...
- Global Satellite Data Collaborations.
- IDEA: Infusing satellite Data into Environmental Applications.
- air quality analysis / forecasting data and images .
- Plots of near real-time surface, cloud, and radiative properties over the Arctic and Antarctic, using AVHRR satellite data and the CASPR software package .
- An interactive tool for tracking convective clusters from satellite and radar data .
- Other Data and Resources.
- provides access to NOAA's real-time environmental data and products .
- SSEC Data Center Archive.
- Archive of geostationary satellite data and NOAAPORT point, grid, and text weather data .
29. Eurimage - Multi-Mission Satellite Data - www.eurimage.com
- www.eurimage.com
- Multi-Mission Satellite Data.
- Tsunami disaster initiative - special conditions for QuickBird data.
- All QuickBird data acquired over the areas affected by the tsunami, both before and after 26 December, will be made available to Institutional, Governmental, and non-profit organisations involved in disaster recovery, at a discount of 30%. ...
- ASTER data .
- An introduction to remote sensing applications using Eurimage satellite data.
- Eurimage Research Club - discounted data for non-commercial research users.
30. World Bank Group - Data and Statistics
- www.worldbank.org
- Data.
- Home > Data & Statistics.
- About Data .
- Data by Country .
- Data by Topic.
- Data Publications.
- Data Site Tools .
- Data for Journalists.
- Data & Statistics.
- Almost all the data reported in this site are derived, either directly or indirectly, from official statistical systems organized and financed by national governments. ...
- Information and selected samples from the WDI2004 publication, the World Bank's premier annual compilation of data about development.
- Internationally comparable data are crucial to forming sustainable policies and monitoring progress. ...
- Information and selected samples from the GDF publication, the World Bank's comprehensive annual compilation of data on external debt and financial flows.
- Development Gateway Data & Statistics.
- Data Facts.
31. SDTS Home Page
- mcmcweb.er.usgs.gov
- Replacement SDTS Data Dictionary/Schema (DDSH) Files are available. Please see the Data Problems page for more information. ...
- Data Problems? SDTS DEM positional error--> Notice Concerning DEM Availability--> .
- SDTS Data Download Site .
- If you are a user of SDTS formatted data, we would like to hear from you. ...
32. Social Sciences Data Collection, University of California San Diego
- ssdc.ucsd.edu
- Social Sciences Data Collection.
- Browse or Search SSDC Research Data.
- Browse SSDC Data Collection Titles .
- Access to SSDC online numeric data is restricted to UCSD .
- Downloading numeric data from ICPSR is restricted to UCSD .
- Browse or Search Data on the Internet.
- Browse Catalog of Data Available on the Internet.
- Search Catalog of Data available on the Internet.
- CRSP annual update (data ending Dec 2003) (02/18/2004) .
- - Data (UCSD).
- - Data (Public) .
- Data Migration Project .
- - Data 1972-2000 (Public).
- - Data 1972-2002 (UCSD Only) .
- Historical Census Data San Diego, Calif.
- Data Libraries .
33. Free GIS Data - GIS Data Depot
- www.gisdatadepot.com
- Download Data .
- FEMA Flood Data .
- About Data .
- Welcome to The GIS Data Depot.
- Please note that data available from this site requires users to be proficient in GIS and may require access to GIS software. Numerous data holdings are available for free download, otherwise, data can be downloaded via our "Premium" option or written to CD-ROM (Lowest Price Around, Guaranteed!)- see the MarketPlace for bundled products. ...
- State Data Bundles - DRG, DEM, NWI, DLG, & DOQ bundles quickly and conveniently delivered to you within a day or two on CD-ROM. ...
- DATA RESOURCES & HELP.
- About Data .
- The GeoCommunity was also selected by the US Fish and Wildlife service as a distributor of their National Wetlands Inventory (NWI) data sets. This data is available for free download (Click the "Download Data" link above) and is available on CD-ROM .
- This data is not available for download from the USGS any longer. ... Digital elevation model (DEM) data consist of a sampled array of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection or to a geographic coordinate system. ... This data is available for free download (Click the "Download Data" link above) and CD-ROM Click here! .
- Data Focused Feature Articles.
- Contribute Your Data success Stories.
34. USGS (U.S. Geological Survey) EROS, Sioux Falls, SD
- edcwww.cr.usgs.gov
- The Pecora Symposium series was developed by the USGS and NASA to foster the exchange of scientific and resource management findings resulting from the use of remote sensor data and to provide a forum for discussing ideas, policies, and strategies on land remote sensing. ...
- Advancing Scientific and Practical Applications of Remotely Sensed Data .
- Data Availability, Access, and Preservation .
- EROS maintains the world's largest collection of civilian remotely sensed data of the Earth's land surface. ...
- The new grids are bounded on more of a continent basis than the previous and also allow customers to fit more data on each piece of media. ...
- All DTEDŽ data have been received from NGA and archived in both the standard NGA DTEDŽ format and the USGS SRTM format which is a binary raster format derived from the NGA DTEDŽ product .
- The standard NGA DTEDŽ formatted data can be searched and ordered from http://edcsns17. ...
- Effective December 22, 2004, the USGS EROS in cooperation with NASA is pleased to announce the release of a new Level 1Gs systematic (geometrically and radiometrically corrected) stitched data product from the Earth Observing-1 (EO-1) Advanced Land Imager (ALI). ...
35. STAT-USA/Internet * Home Page
- www.stat-usa.gov
- State of the Nation -- Access this area for current and historical economic and financial releases and economic data. ...
- the National Trade Data Bank (NTDB). ...
- Merchandise Trade data!.
- Go to EuroTrade Online right now for European Union merchandise trade data. ...
36. USGS--Water Resources of the United States
- nsdi.usgs.gov
- NWISWeb Water Data.
- Real-Time Data .
- USGS operates in every State; the Water Resources mission is to provide water information that benefits the Nation's citizens: publications, data, maps, and applications software.
- NWISWeb Water Data.
- Access to water-resources data collected at approximately 1. ...
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