Links to visual resource databases for earthquake and structural engineering, announcements, local links, and research resource databases for earthquake engineering.

The National Oceanographic Data Center (NODC) manages the acquisition, ingest processing, quality control and long-term preservation of oceanographic data.The National Oceanographic Data Center holds global physical, chemical, and biological oceanographic data sets that are being used by researchers world-wide. Specifically NODC's Ocean Climate Laboratory is investigating interannual-to-decadal ocean climate variability using historical oceanographic data, and building scientifically, quality-controlled global oceanographic databases in their products known as the World Ocean Atlas and World Ocean Database. For a complete list of NODC data and products see our Access Data page. The data are scanned for viruses, and cryptographic checksums are generated and stored with the original data files so data integrity can be monitored and verified over extended time periods and across generations of storage technologies. A copy of the data is written to near-line mass storage and a copy is written to removable media for off-site storage.The NODC archive holdings include all the data acquired in its original form, as well as project and product files of data extractions.

NSIDC provides cryospheric data and information gathered from such sources as remote sensing instruments, ground measurements, and models. Established by NOAA as a national information and referral center in support of polar and cryospheric research, NSIDC archives and distributes digital and analog snow and ice data. We also maintain information about snow cover, avalanches, glaciers, ice sheets, freshwater ice, sea ice, ground ice, permafrost, atmospheric ice, paleoglaciology, and ice cores.

The NRDB is a compilation of observations of flora and fauna made at open space and nature preserves in the greater San Francisco Bay Area. The database can be searched for available data on flora, mammals, birds, and reptiles-amphibians-fishes seen at one or more preserves.

The NAVDAT project is compiling existing age, chemical, and isotopic data from Late Cretaceous to Holocene extrusive and intrusive igneous rocks from the western United States, British Columbia, and northern Mexico into a web-accessible electronic database. NAVDAT will be integrated into a geographic information system (GIS) to allow visualization of complex age-compositional patterns in volcanism throughout the study region. The addition of necessary relational and graphical tools will allow users of the database to address a wide variety of issues concerning the geologic evolution and present volcanic state of western North America.

The NCBI Clone Registry is a database that integrates information about genomic clones and libraries, including sequence data, genomic position, and distributor information.

New Madrid region earthquake (seismic) data from the Center for Earthquake Research and Information.

The NIST Chemistry WebBook contains: Thermochemical data for over 7000 organic and small inorganic compounds; Reaction thermochemistry data for over 8000 reactions; IR spectra for over 16,000 compounds; Mass spectra for over 15,000 compounds; UV/Vis spectra for over 1600 compounds; Electronic and vibrational spectra for over 4500 compounds; Constants of diatomic molecules (spectroscopic data) for over 600 compounds; Ion energetics data for over 16,000 compounds: Thermophysical property data for 34 fluids. You can search for data on specific compounds in the Chemistry WebBook based on name, chemical formula, CAS registry number, molecular weight, chemical structure, or selected ion energetics and spectral properties.

The NOAA ENC Direct to GIS web portal provides comprehensive access to display, query, and download all available large-scale NOAA ENC data in a variety of GIS/CAD formats for non-navigational purposes using Internet mapping service technology. Nautical chart features contained within a NOAA ENC provide a detailed representation of the U.S. coastal and marine environment. These data include coastal topography, bathymetry, landmarks, geographic place names, and marine boundaries. Features in a single NOAA ENC are limited in that they only represent the geographic region that is depicted in that particular NOAA ENC cell. By aggregating nautical features from all NOAA ENCs in the creation of GIS data, a continuous depiction of the U.S coastal and marine environment is achieved.

See a computer simulation of the tsunami created by the Sumatra submarine earthquake.

The NOSA Web site was designed to provide information that is useful both to the managers of observing systems within NOAA and to the user who wants to know more about NOAA's mission and the environmental parameters it is monitoring and where. The main focus of the site is the Featured Observing System. Each month a NOAA Observing System will be featured with a description and links to the site for the user to learn more about that system. The left-hand side of the new Web site contains detailed information about the NOSA project and related documents, which describe architecture, programs, and requirements for the projects and the observing systems. The geospatial information of more than 80 of these observing systems was collected into a geospatial database with the assistance of the observing system managers. This database forms the basis for the geospatial capabilities of the Web site.

The NOAA Photo Library has been built so as to capture the work, observations, and studies that are carried on by the scientists, engineers, commissioned officers, and administrative personnel that make up this complex and scientifically diverse agency. It also has been built in an attempt to capture NOAA's scientific heritage, which is in fact a heritage shared by much of the physical and environmental science communities in the United States today. To date, over 16,000 images have been digitized and reside in the online NOAA Photo Library. This number will continue growing as long as there are environmental problems to study and solve, as long as the citizens of the United States are threatened by violent weather, as long as mariners need nautical charts, and as long as creatures of the sea need our protection to survive. Until then, you are invited to join NOAA in this photographic essay that spans the World's oceans and atmosphere, carries you from the surface of the sun to the bottom of the sea, and travels through centuries of scientific thought and observations.

The Comprehensive Large Array-data Stewardship System (CLASS) is an electronic library of NOAA environmental data. This web site provides capabilities for finding and obtaining those data. CLASS is NOAA's premiere on-line facility for the distribution of NOAA and US Departmentof Defense (DoD) Polar-orbiting Operational Environmental Satellite (POES) data, NOAA's Geostationary Operational Environmental Satellite (GOES) and derived data.

The Northern California Earthquake Data Center (NCEDC) is a joint project of the University of California Berkeley Seismological Laboratory (BSL) and the United States Geological Survey (USGS). The NCEDC is a long-term archive and distribution center for seismological and geodetic data for Northern and Central California and is partially supported by funding from the USGS component of the National Earthquake Hazards Reduction Program (NEHRP).

The NOW (Neogene of the Old World) database contains information about Eurasian Miocene to Pleistocene land mammal taxa and localities, with emphasis on the European Miocene and Pliocene. The NOW database is maintained and coordinated at the University of Helsinki by Mikael Fortelius in collaboration with an international advisory board.