NASA Home Page Goddard Space Flight Center Home Page
NASA Logo - Goddard Space Flight Center   + Visit NASA.gov
a directory of Earth science data and services Global Change Master Directory Web site
header 2 bullet Links bullet FAQ bullet Contact Us bullet Site Map
Home Data Sets Data Services Learn about GCMD_legacy's portal collaborations. Add new dataset or dataservice records to GCMD_legacy What's New Participate Calendar About GCMD_legacy
 
Thumbnail Icon [Science_Parameters: Science_Category='EARTH SCIENCE', Science_Topic='TERRESTRIAL HYDROSPHERE', Science_Term='WATER QUALITY/WATER CHEMISTRY']

Refine by Category
 
Refine by Full Text

 

 

460 Titles Match Your Query
Showing 1 through 50 of 460 Next
1. Semantic Web for Earth and Environmental Terminology [SWEET-Ontology]
SWEET ontologies are written in the OWL ontology language and are publicly available. SWEET 2.3 is highly modular with 6000 concepts in 200 separate ontologies. You can view the entire concept space ...

2. ORNL DAAC Advanced Metadata Search [ORNL_ADVANCED_SEARCH]
Mercury is a service oriented web-based distributed metadata management system for finding and retrieving biogeochemical, ecological, and other land-based data. ORNL DAAC's implementation of Mercury ...

3. BIOPLUMEIII - A 2D, Finite Diffference Model for Simulating the Natural Attenuation of Organic Contaminants in Ground-Water [USEPA_BIOPLUMEIII]
BIOPLUME III is a 2D, finite difference model for simulating the natural attenuation of organic contaminants in ground-water due to the processes of advection, dispersion, sorption, and ...

4. HDF Explorer [HDF_Explorer]
HDF Explorer is a data visualization program that reads Hierarchical Data Format files (HDF, HDF-EOS and HDF5) and also netCDF data files. HDF Explorer offers a simple yet powerful interface for the ...

5. Alkalinity Calculator [USGS_ALK]
The Alkalinity Calculator will analyze the titration curve and calculate the alkalinity or acid neutralizing capacity (ANC) of the sample using one or more of several different methods. Alkalinity ...

6. An Interactive Code For Modeling Net Geochemical Reactions Along a Flow Path [USGS_NETPATH]
NETPATH is an interactive Fortran 77 computer program used to interpret net geochemical mass-balance reactions between an initial and final water along a hydrologic flow path. Alternatively, NETPATH ...

7. BIOMOC - A Multispecies Solute-Transport Model with Biodegradation [USGS_BIOMOC]
BIOMOC is a two-dimensional model that can simulate the transport and biotransformation of multiple reacting solutes. The program is general and flexible, allowing for any combination ...

8. Chemical Modeling of Acid Waters [USGS_WATEQ4F]
WATEQ4F is a chemical speciation code for natural waters. It uses field measurements of temperature, pH, Eh, dissolved oxygen and alkalinity, and the chemical analysis of a water sample as input and ...

9. DSS Environment for Modeling of Atmospheric Nutrient Deposition [DEMAND]
DSS Environment for Modeling of Atmospheric Nutrient Deposition (DEMAND) is a NASA-funded project utilizes recent NASA Earth Science Research Results (NASA ESRR) to aid in decision making processes ...

10. KTRLine: Kendall-Theil Robust Line [USGS_KTRLine]
The Kendall-Theil Robust Line software (KTRLine?version 1.0) is a Visual Basic program that may be used with the Microsoft Windows operating system to calculate parameters for robust, nonparametric ...

11. MODOPTIM: A General Optimization Program for Ground-Water Flow Model Calibration and Ground-Water Management with MODFLOW [USGS_MODOPTIM]
MODOPTIM is a non-linear ground-water model calibration and management tool that simulates flow with MODFLOW-96 as a subroutine. A weighted sum-of-squares objective function defines optimal solutions ...

12. Nitrogen and Phosphorus Pollution Data Access Tool (NPDAT) [EPA_npdat]
The Nitrogen and Phosphorus Pollution Data Access Tool (NPDAT) enables users to view and download nitrogen and phosphorus pollution data from a variety of databases. The NPDAT utilizes shared Web ...

13. One-Dimensional Transport with Equilibrium Chemistry (OTEQ): A Reactive Transport Model for Streams and Rivers [USGS_OTEQ]
The One-Dimensional Transport with Equilibrium Chemistry (OTEQ) model is a mathematical simulation model used to characterize the fate and transport of waterborne solutes in streams and rivers. The ...

14. USGS Water Services [USGS_waterservices]
The USGS Water Services site serves USGS water data via automated means using web services and extensible markup language (XML) as well as other popular media types. Services can be invoked with the ...

15. waterData—An R Package for Retrieval, Analysis, and Anomaly Calculation of Daily Hydrologic Time Series Data [USGS_waterData]
Hydrologic time series data and associated anomalies (multiple components of the original time series representing variability at longer-term and shorter-term time scales) are useful for modeling ...

16. DataONE R Client [dataone_r]
The DataONE R Client is an R package that provides read/write access to data and metadata from the DataONE network of Member Node data repositories. Member Nodes in DataONE are independent data repositories ...

17. MIG Editor - A Geographical Metadata Editor [migeditor]
The MIG Editor is a geographical metadata editor that implements a subset of the 19115, 19119 and 19139 ISO formats. Based in the Portuguese Metadata Profile and INSPIRE requirements.

18. The GLOBE Program Archive of Environmental Data and Resources for Students and Teachers [GLOBE_Archive-00]   CHILD SERFs
GLOBE (Global Learning and Observations to Benefit the Environment) is a worldwide hands-on, primary and secondary school-based science and education program. GLOBE's vision promotes and supports ...

19. Panoply NetCDF Viewer [NASA_GISS_Panoply]
Panoply is a cross-platform application which plots geo-gridded arrays from netCDF, HDF and GRIB datasets. You can: - Slice and plot specific latitude-longitude, latitude-vertical, longitude-vertical, ...

20. Estuary Data Mapper [NOAA_EDM]
The Estuary Data Mapper is a free, stand-alone tool for searching, viewing, and downloading geospatial data for estuaries and their associated watersheds in the conterminous United States. Using a ...

21. ORNL DAAC Open Access Initiative - Protocol for Metadata Harvesting [ORNL_DAAC_OAI_PMH]
ORNL DAAC's OAI-PMH harvester allows metadata records from the DAAC repository to be exposed as items in an OAI data repository and made available to the data provider for incremental harvesting. ...

22. Socioeconomic Data and Applications Center (SEDAC) Environmental Sustainability Index Electronic Seminar (ESI E-Seminar) [CIESIN_SEDAC_ESI_E-SEMINAR]
The Environmental Sustainability Index e-Seminar (ESI_e-Seminar) is a short online course describing the many facets of environmental sustainability. The course consists of a series of video discussions ...

23. CEOS Climate Diagnostics [CEOS_CD]
The CEOS Climate Diagnostics web site was inspired by the ideas and foresight of Mitchell D. Goldberg, NOAA/NESDIS, SaTellite Applications and Research (STAR), and Chief of the Satellite Meteorology ...

24. NASA's Global Change Master Directory [Glob_Chng_Mast_Direct]
The goal of NASA's Global Change Master Directory (GCMD) is to enable users to locate and obtain access to Earth science data sets and services relevant to global change and Earth science research. ...

25. Excel to Google Earth Tool [e2g]
The Excel to Google Earth (E2G) tool is easy to install and use. All that is required is an Excel spreadsheet that has geographic identifiers (district, ward, province, etc.) included as part of the ...

26. Environmental Treaties and Resource Indicators (ENTRI) Query Service [CIESIN_SEDAC_ENTRI_QS]
The Environmental Treaties and Resource Indicators (ENTRI) Query Service is a comprehensive web-based application for accessing environmental treaty texts and treaty status data such as signatories, ...

27. Minnesota Public Health Data Access Portal [Minnesota_Public_Health_Data_Access_Portal]
The Minnesota Public Health Data Access Portal (also called the Data Access Portal) provides access to data on a variety of environmental and health topics. Minnesota Public Health Data Access (MNPH ...

28. Greek Inspire Metadata Editor [GIMED]
GIMED is a metadata editor for geospatial data. It is focused on providing compliant metadata with the ISO19139 standard and INSPIRE directive.

29. INSPIRE Geoportal Metadata Editor [EU_GEoportal_Inspire_Metadata_Editor]   PARENT SERF
The INSPIRE Geoportal Metadata Editor is a web application to create INSPIRE-compliant metadata in any of 22 European languages. It has been developed by the Joint Research Centre as part of the EuroGEOSS ...

30. GEONETCast [EUMETSAT_GEONETCast]
GEONETCast is a global network of satellite based data dissemination systems providing environmental data to a world-wide user community. The current partners within the GEONETCast initiative include ...

31. Ground Water Primer [SEAHOME_GWPRIMER]
The Ground Water Primer is a downloadable software program that discusses the nature of ground water, principles of ground water protection, and introduction to hydrogeology, information on drinking ...

32. ORNL Metadata Editor [ORNL_MERCURY_OME]
The ORNL Metadata Editor (OME) is a Web-based tool that allows users to create and maintain eXtensible Markup Language (XML) files containing key information, or metadata, about the research. Metadata ...

33. Plumb Design Visual Thesaurus [Plumb_Visual_Thesaurus]
An experiment in language and interface, Plumb Design's Visual Thesaurus is both an artistic exploration and a tool to explore, study, and analyze the structure of language. By displaying the interrelationships ...

34. Metadata Wizard [Metadata_Wizard]
The Metadata Wizard tool is designed as a resource to help geospatial data users with the creation and editing of metadata compliant with the Federal Geographic Data Committee's 'Content Standard ...

35. Geomodel - Basic Geospatial Queries in Google App Engine [geomodel]
This project aims to provide a generalized solution for performing basic indexing and querying of geospatial data in Google App Engine. At the core, this solution utilizes geohash-like objects called ...

36. Metadata Extraction Tool [met]
The Metadata Extraction Tool was developed by the National Library of New Zealand to programmatically extract preservation metadata from a range of file formats like PDF documents, image files, sound ...

37. GpsPrune - An Application for Viewing, Editing and Converting Coordinate Data from GPS Systems [GpsPrune]
GpsPrune is an application for viewing, editing and converting coordinate data from GPS systems. Basically it's a tool to let you play with your GPS data after you get home from your trip. It can ...

38. Apache Pig - A Platform for Analyzing Large Data Sets [ApachePig]
Apache Pig is a platform for analyzing large data sets that consists of a high-level language for expressing data analysis programs, coupled with infrastructure for evaluating these programs. The ...

39. Avro - A Data Serialization System [Avro]
Apache Avro is a data serialization system. Avro provides: - Rich data structures. - A compact, fast, binary data format. - A container file, to store persistent data. - Remote procedure call ...

40. DNRGarmin [DNRGPS]
DNRGPS is an update to the popular DNRGarmin application. DNRGPS and its predecessor were built to transfer data between Garmin handheld GPS receivers and GIS software. DNRGPS was released as Open ...

41. Geographic Resources Analysis Support System (GRASS) [GRASS]
The Geographic Resources Analysis Support System (GRASS) is a Geographic Information System (GIS) used for data management, image processing, graphics production, spatial modeling, and visualization ...

42. smartEditor [smartEditor]
The Metadata Management community is pleased to announce the release of the smartEditor version 1.2. The major focus of this release is to extend the support of metadata standards for different information ...

43. OPeNDAP [OPeNDAP]   CHILD SERFs
The OPeNDAP Data Access Protocol (DAP) is a protocol for requesting and transporting data across the web. DAP 2.0 uses HTTP to frame the requests and responses. OPeNDAP has developed a software ...

44. Water Data Portal - Integrated Portal for IWMI Research Data [IWMI_WATERDATA]
WaterData is an integrated portal providing a one stop access to all data stored in IWMI?s archive. It also provides access to data in IDIS (http://dw.iwmi.org) and IWMIDSP (http://www.iwmidsp.org). ...

45. Acute-to-Chronic Estimation (ACE) Model [EPA_ACE]
The Acute-to-Chronic Estimation (ACE) with Time-Concentration-Effect Models software allows prediction of chronic toxicity from acute toxicity datasets. ACE uses linear regression and accelerated ...

46. EPA Air Markets Program Data Interactive Map [EPA_Air_Markets_Program_Map]
EPA has created supplementary maps that allow the user to display geo-spatial data on an interactive 3D platform. The maps come in the form of a KMZ file (a compressed KML file) that is downloaded ...

47. Food and Gill Exchange of Toxic Substances (FGETS) FORTRAN Simulation Model [EPA_FGETS]
FGETS (Food and Gill Exchange of Toxic Substances) is a FORTRAN simulation model that predicts temporal dynamics of a fish's whole body concentration (ug chemical/(g live weight fish)) of nonionic, ...

48. Multimedia Contaminant Fate, Transport, and Exposure Model (MMSOILS) [EPA_MMSOILS]
The Multimedia Contaminant Fate, Transport, and Exposure Model (MMSOILS) estimates the human exposure and health risk associated with releases of contamination from hazardous waste sites. The methodology ...

49. Multimedia Exposure Assessment Model (MULTIMED) [EPA_MULTIMDP]
The Multimedia Exposure Assessment Model (MULTIMED) for exposure assessment simulates the movement of contaminants leaching from a waste disposal facility. The model consists of a number of modules ...

50. SERAFM - A Process-Based, Steady-State Modeling System [EPA_SERAFM]
SERAFM is a steady-state, process based mercury cycling model designed specifically to assist a risk assessor or researcher in estimating mercury concentrations in the water column, sediment, and ...

Showing 1 through 50 of 460 Next
USA dot gov - The U.S. Government's Official Web Portal NASA
Webmaster:  Monica Lyles
Responsible NASA Official:  Dr. Stephen Wharton
Last Updated:  April 2015