Technology

SEDAC’s Hazards Mapper enables users to rapidly get an idea of the population, land area, dams, and nuclear power plants that could be impacted by a wide range of natural events, including floods, earthquakes, fires, and volcanic eruptions. 

SEDAC’s Map Viewer is a tool that enables visualization of all SEDAC map layers, crossing themes of agriculture, climate, conservation, hazards, health, land use, coastal environments, population, poverty and urban environments. 

SEDAC's POPGRID Viewer enables direct comparison of different population datasets based on different data sources and methodologies. The tool incorporates a four-panel display of six different data sets, including Gridded Population of the World, Landscan, WorldPop, and Human Settlements Population Grid.

SEDAC's Population Estimation Service is a web-based service that lets users of a wide variety of map clients and tools quickly obtain estimates of the number of people residing in a user-defined geographic region, without having to download and analyze large amounts of spatial data. 

A shapefile is a digital vector (non-topological) storage format for storing geometric location and associated attribute information. The shapefile format specified by Esri can be used by ArcView, ArcInfo, ArcGIS and other widely used GIS software.

Smallsats are spacecraft about the size of a large kitchen refrigerator, or smaller, with a mass less than 180 kilograms. CubeSats are a class of smallsat.

The Smallsat Data Explorer (SDX) allows NASA-funded researchers to explore and order catalogued commercial satellite data from multiple commercial vendors in one place.

NASA's Socioeconomic Data and Applications Center (SEDAC) publishes most of the data it distributes via a suite of online mapping services—Web Map Service (WMS), Web Feature Service (WFS), and Web Coverage Service (WCS). The WMS, WFS, and WCS are Open Geospatial Consortium (OGC) standards that enable a simple HTTP interface for requesting geo-referenced map images and data over the Internet from one or more distributed geospatial data sources.

The NASA Socioeconomic Data and Applications Center (SEDAC) publishes most of the data it distributes via a suite of online mapping services—Web Map Service (WMS), Web Feature Service (WFS), and Web Coverage Service (WCS). The WFS is an Open Geospatial Consortium (OGC) standard that enables a simple HTTP interface to request geo-referenced map images and data over the Internet from one or more distributed geospatial data sources.

The Soil Moisture Visualizer, developed by NASA's Oak Ridge National Laboratory DAAC (ORNL DAAC), is a tool that integrates a variety of different soil moisture datasets over North America. The visualization tool incorporates in-situ, airborne, and remote sensing data into one easy-to-use platform. 

The Spatial Data Access Tool (SDAT), developed by NASA's Oak Ridge National Laboratory DAAC (ORNL DAAC), is an Open Geospatial Consortium (OGC) standards-based web application to visualize and download spatial data in various user-selected spatial/temporal extents, file formats, and projections. Datasets including land cover, biophysical properties, elevation, and selected ORNL DAAC archived data are available through SDAT. 

A protocol defines a set of rules used by two or more parties to interact between themselves. A standard is a formalized protocol accepted by most of the parties that implement it. Not all protocols are standards (some are proprietary). Not all standards are protocols (some govern other layers than communication).

State of the Ocean (SOTO), developed by NASA's Pysical Oceanography Distributed Active Archive Center (PO.DAAC), is an interactive web-based tool that generates informative maps, animations, and plots that communicate and prove the discovery and analysis of the state of the oceans. 

The Sub-Orbital Order Tool (SOOT) was developed by the Atmospheric Science Data Center (ASDC) at NASA's Langley Research Center for handling data acquired from suborbital field campaigns that are assigned to and archived at the ASDC. 

Supercomputing refers to the processing of Big Data using the concentrated compute resources of multiple computer systems working in parallel. This combined system of systems is the supercomputer. 

The Surface Water and Ocean Topography (SWOT) Swath Visualizer provides a visualization of two instruments’ coverage of Earth's surface: the Ka-band Radar Interferometer (KaRIn) and altimeter. Users can search for places of interest to obtain swath information. 

Synthetic aperture radar, or SAR, uses the microwave region of the electromagnetic spectrum. SAR can penetrate cloud cover and “see through” darkness and weather, allowing a unique view of flood inundation, land cover changes, and modifications of Earth’s surface from landslides, earthquakes, and background tectonic motion. NASA’s home for SAR data and imagery is the Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC). 

Vertex, developed by NASA's Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC), is a graphical search interface for finding synthetic aperture radar (SAR) Data.  

Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) collected airborne measurements of atmospheric carbon dioxide, methane, and carbon monoxide and relevant land surface parameters in the Alaskan Arctic. Users can visualize he atmospheric gas concentration (left y-axis) and altitude (right y-axis) recorded over the duration of the flight with the Visualize CARVE Data tool

A web application (web app) is a software program that runs on a web server. Unlike traditional desktop applications, which are launched by an operating system, web apps must be accessed through a web browser.

A Web Coverage Service (WCS) offers multi-dimensional coverage data for access over the Internet. WCS Core specifies a core set of requirements that a WCS implementation must fulfill.

The Web Feature Service (WFS) is an interface specified by the Open Geospatial Consortium (OGC) that allows for the exchange of geographic data across the Web.

The OpenGIS Web Map Service Interface Standard (WMS) provides a simple HTTP interface for requesting geo-registered map images from one or more distributed geospatial databases.

A web service is a generic term for an interoperable machine-to-machine software function that is hosted at a network addressable location. A web service has an interface that hides the implementation details so that it can be used independently of the hardware or software platform on which it is implemented and independently of the programming language in which it is written.