Airborne Gravity: NGS' Gravity Data for CS09 (2016-2018)
Data Set (DS) | National Geodetic Survey (NGS)GUID: gov.noaa.nmfs.inport:55973 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
National Geodetic Survey, 2024: Airborne Gravity: NGS' Gravity Data for CS09 (2016-2018), https://www.fisheries.noaa.gov/inport/item/55973.
Full Citation Examples
Airborne gravity data for Kansas, Oklahoma, and Texas collected from 2016-2018 over 7 surveys. This data set is part of the Gravity for the Re-definition of the American Vertical Datum (GRAV-D) project initiated by NOAA's National Geodetic Survey to collect and monitor gravity data suitable for the re-definition of the vertical datum for at least the United States and territories. The data is available at http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml in ASCII text format.
Distribution Information
-
Text (Unstructured)
Downloadable Data
None
Must read and fully comprehend the metadata prior to use, acknowledgment of the Originator when using the data set as a source, data should not be used beyond the limits of the source scale
Controlled Theme Keywords
Geodetic Control Theme, GEOID CHARACTERISTICS, GEOPOTENTIAL HEIGHT, geoscientificInformation, GRAVITY/GRAVITATIONAL FIELD, MARINE GRAVITY FIELD, National Geospatial Data Asset, NGDA
Child Items
No Child Items for this record.
Contact Information
Point of Contact
GRAV-D Project Manager
NGS.GRAVD@noaa.gov
240-533-9641
Metadata Contact
GRAV-D Project Manager
NGS.GRAVD@noaa.gov
240-533-9641
Extents
-101.95° W,
-95.85° E,
36.56° N,
33.01° S
2016-10 - 2018-11
Item Identification
Title: | Airborne Gravity: NGS' Gravity Data for CS09 (2016-2018) |
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Short Name: | GRAVD_CS09 |
Status: | Completed |
Creation Date: | 2019 |
Publication Date: | 2019-03 |
Abstract: |
Airborne gravity data for Kansas, Oklahoma, and Texas collected from 2016-2018 over 7 surveys. This data set is part of the Gravity for the Re-definition of the American Vertical Datum (GRAV-D) project initiated by NOAA's National Geodetic Survey to collect and monitor gravity data suitable for the re-definition of the vertical datum for at least the United States and territories. The data is available at http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml in ASCII text format. |
Purpose: |
These data sets were collected and processed by NOAA's National Geodetic Survey (www.ngs.noaa.gov) as part of its GRAV-D effort to modernize the U.S. vertical datum. The purpose of these data is to provide accurate gravity data for geoid modeling for the U.S. and its territories. It was designed to provide medium wavelength gravity information (around 20-400 km) to connect satellite and ground gravity measurements. |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > MARINE GEOPHYSICS > MARINE GRAVITY FIELD
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > SOLID EARTH > GEODETICS > GEOID CHARACTERISTICS
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD
|
ISO 19115 Topic Category |
geoscientificInformation
|
NGDA Portfolio Themes |
Geodetic Control Theme
|
NGDA Portfolio Themes |
National Geospatial Data Asset
|
NGDA Portfolio Themes |
NGDA
|
UNCONTROLLED | |
NASA/GCMD Data Center Keywords | Data Center > Government Agencies-U.S. Federal Agencies > DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce |
NASA/GCMD Data Center Keywords | DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce |
NASA/GCMD Platform Keywords | Platform > Aircraft > Hawker Beechcraft King Air 200T |
NASA/GCMD Platform Keywords | Platform > Aircraft > Pilatus PC-12 |
NOS Data Explorer Topic Category | Geodetic/Global Positioning |
None | airborne gravity |
None | datum |
None | ellipsoid height |
None | geodetic |
None | geoid |
None | geophysical |
None | GEOSS |
None | GGOS |
None | Global Earth Observation System of Systems |
None | Global Geodetic Observing system |
None | gravity |
None | height modernization |
None | National Spatial Reference System |
None | NAVD88 |
None | North American Vertical Datum of 1988 |
None | NSRS |
None | orthometric height |
None | spatial reference |
None | vertical |
Instrument Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Instrument Keywords |
GPS RECEIVERS > GPS RECEIVERS
|
Global Change Master Directory (GCMD) Instrument Keywords |
GRAVIMETERS
|
Global Change Master Directory (GCMD) Instrument Keywords |
IMU > INERTIAL MEASUREMENT UNIT
|
Global Change Master Directory (GCMD) Instrument Keywords |
LRGM > Lacoste-Romberg Gravity Meter
|
Platform Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Platform Keywords |
ENVISAT > Environmental Satellite
|
Global Change Master Directory (GCMD) Platform Keywords |
ERS-1 > European Remote Sensing Satellite-1
|
Global Change Master Directory (GCMD) Platform Keywords |
ERS-2 > European Remote Sensing Satellite-2
|
Global Change Master Directory (GCMD) Platform Keywords |
GOCE > Gravity Field and Steady-State Ocean Circulation Explorer
|
Global Change Master Directory (GCMD) Platform Keywords |
GPS > Global Positioning System Satellites
|
Global Change Master Directory (GCMD) Platform Keywords |
GRACE > Gravity Recovery and Climate Experiment
|
Global Change Master Directory (GCMD) Platform Keywords |
GROUND-BASED OBSERVATIONS > GROUND-BASED OBSERVATIONS
|
Global Change Master Directory (GCMD) Platform Keywords |
JASON-1
|
Global Change Master Directory (GCMD) Platform Keywords |
OSTM/JASON-2 > Joint Altimetry Satellite Oceanography Network - 2
|
Global Change Master Directory (GCMD) Platform Keywords |
TOPEX/POSEIDON > Ocean Topography Experiment
|
Physical Location
Organization: | National Geodetic Survey |
---|---|
City: | Silver Spring |
State/Province: | MD |
Data Set Information
Data Set Scope Code: | Data Set |
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Data Set Type: | Text files |
Maintenance Frequency: | As Needed |
Data Presentation Form: | Table (digital) |
Entity Attribute Overview: |
The ASCII text file provides a single processed observation per row with the following elements comma separated: year, month, day, hour, minutes, seconds, latitude (dd), longitude (dd), ellipsoid height (m), full field gravity at altitude (mGals), full field EGM08 gravity at altitude (mGal) |
Entity Attribute Detail Citation: |
http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml |
Distribution Liability: |
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. |
Data Set Credit: | GRAV-D Team |
Support Roles
Data Steward
Date Effective From: | 2017-06 |
---|---|
Date Effective To: | |
Contact (Position): | GRAV-D Project Manager |
Email Address: | NGS.GRAVD@noaa.gov |
Phone: | 240-533-9641 |
Fax: | 301-713-4327 |
Distributor
Date Effective From: | 2017-06 |
---|---|
Date Effective To: | |
Contact (Position): | GRAV-D Project Manager |
Email Address: | NGS.GRAVD@noaa.gov |
Phone: | 240-533-9641 |
Fax: | 301-713-4327 |
Metadata Contact
Date Effective From: | 2017-06 |
---|---|
Date Effective To: | |
Contact (Position): | GRAV-D Project Manager |
Email Address: | NGS.GRAVD@noaa.gov |
Phone: | 240-533-9641 |
Fax: | 301-713-4327 |
Point of Contact
Date Effective From: | 2017-06 |
---|---|
Date Effective To: | |
Contact (Position): | GRAV-D Project Manager |
Email Address: | NGS.GRAVD@noaa.gov |
Phone: | 240-533-9641 |
Fax: | 301-713-4327 |
Extents
Currentness Reference: | Ground Condition |
---|
Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -101.95 | |
---|---|---|
E° Bound: | -95.85 | |
N° Bound: | 36.56 | |
S° Bound: | 33.01 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
---|---|
Start: | 2016-10 |
End: | 2018-11 |
Access Information
Security Class: | Unclassified |
---|---|
Data Access Procedure: |
https://www.ngs.noaa.gov/grav-d/data_products.shtml |
Data Access Constraints: |
None |
Data Use Constraints: |
Must read and fully comprehend the metadata prior to use, acknowledgment of the Originator when using the data set as a source, data should not be used beyond the limits of the source scale |
Distribution Information
Distribution 1
Download URL: | http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml |
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Distributor: | |
Description: |
Downloadable Data |
File Type (Deprecated): | ASCII |
Distribution Format: | Text (Unstructured) |
Compression: | Zip |
URLs
URL 1
URL: | http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml |
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URL Type: |
Online Resource
|
URL 2
URL: | http://www.ngs.noaa.gov/GRAV-D/data_products.shtml |
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URL Type: |
Online Resource
|
URL 3
URL: | http://www.ngs.noaa.gov/ |
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URL Type: |
Online Resource
|
Data Quality
Accuracy: |
The absolute accuracy of airborne gravity is difficult to quantify. The following measures are indicators of data quality, but are not definitive measures. The cross over precision is 1.53 mGals, which is a combination of differences between cross track and data track and may not be indicative of data quality. Adjacent data lines have an average cross-correlation of 99.14%. Low correlation between adjacent lines may indicate either poor quality on one of the two lines or rapidly changing features. More detailed information can be found at http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml. |
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Completeness Report: |
Due to the altitude, speed of data collection, and track spacing of 10 kilometers the resolution of these data are limited to 20 kilometers. More detailed information can be found at http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml. |
Conceptual Consistency: |
Data processing is fully automated and output file is computer generated. All lines are checked by an analyst and any errors in production are corrected. More detailed information can be found at http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml. |
Quality Control Procedures Employed: |
Data are processed shortly after flying to ensure that all instruments are working and data quality is acceptable. Field personnel perform data checks at least once per day to ensure all GPS receivers, the gravimeter, and IMUs are working up to standard. The field personnel also process GPS and gravity data, mapping the preliminary gravity product, to check quality. Additional quality control plots are built into the GPS and gravity processing software packages for advanced data analysis in the field. After processing data are compared to an existing geoid model. In addition processed gravity is compared at common points from several flight lines crossing the survey lines to verify consistent gravity measurements in the same location.. More detailed information can be found at http://www.ngs.noaa.gov/GRAV-D/data_cs09.shtml. |
Lineage
Sources
Raw GPS Data from GRAV-D surveys TX16-2, TX16-3, TX17-1, TX18-1, OK18-1, OK18-3 and OK18-4.
Contact Role Type: | Originator |
---|---|
Contact Type: | Organization |
Contact Name: | National Geodetic Survey |
Publish Date: | 2019-03-29 |
Extent Type: | Range |
Extent Start Date/Time: | 2016-10 |
Extent End Date/Time: | 2018-11 |
Raw Gravity Data from GRAV-D surveys TX16-2, TX16-3, TX17-1, TX18-1, OK18-1, OK18-3 and OK18-4.
Contact Role Type: | Originator |
---|---|
Contact Type: | Organization |
Contact Name: | NOAA's National Geodetic Survey |
Publish Date: | 2019-03-29 |
Extent Type: | Range |
Extent Start Date/Time: | 2016-10 |
Extent End Date/Time: | 2018-11 |
Process Steps
Process Step 1
Description: |
GPS data processed using NovAtel Waypoint Inertial Explorer 8.7 from GRAV-D surveys TX16-2, TX16-3, TX17-1, TX18-1, OK18-1, OK18-3 and OK18-4. |
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Process Contact: | GRAV-D Project Manager |
Phone (Voice): | 240-533-9641 |
Email Address: | NGS.GRAVD@noaa.gov |
Source: | Raw GPS Data from GRAV-D surveys TX16-2, TX16-3, TX17-1, TX18-1, OK18-1, OK18-3 and OK18-4. |
Process Step 2
Description: |
Gravity data from GRAV-D surveys TX16-2, TX16-3, TX17-1, TX18-1, OK18-1, OK18-3 and OK18-4 processed using NGS software Newton v1.4 |
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Process Contact: | GRAV-D Project Manager |
Phone (Voice): | 240-533-9641 |
Email Address: | NGS.GRAVD@noaa.gov |
Source: | Raw Gravity Data from GRAV-D surveys TX16-2, TX16-3, TX17-1, TX18-1, OK18-1, OK18-3 and OK18-4. |
Catalog Details
Catalog Item ID: | 55973 |
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GUID: | gov.noaa.nmfs.inport:55973 |
Metadata Record Created By: | Jeff Johnson |
Metadata Record Created: | 2019-03-28 08:58+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-10-17 16:12+0000 |
Metadata Record Published: | 2019-04-09 |
Owner Org: | NGS |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2019-04-09 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2020-04-09 |