The Smithsonian Institution's National Air and Space Museum has contacted the National Geodetic Survey (NGS) regarding the loan of an early model GPS system for inclusion in a new Smithsonian Timing and Navigation exhibit...
more
The National Geodetic Survey (NGS) has updated the three-dimensional coordinates of more than 5,000 Global Navigation Satellite System (GNSS)-derived, high-accuracy survey marks published through its Online Positioning User Service Database (OPUS-DB), making them consistent with the latest definition of the National Spatial Reference System (NSRS)...
more
This week, the National Geodetic Survey (NGS) hosted researchers from the Royal Observatory of Belgium and Geoscience Australia at the NGS Corbin Training Center in Corbin, Virginia, to observe and discuss NGS's absolute antenna calibration program...
more
The National Geodetic Survey's National Height Modernization Program has developed a strategic plan to help achieve the program's goals and priorities. This plan is closely aligned with the updated NGS Ten-Year Plan, to be formally released in January 2013. We welcome you to review this draft plan and send any comments to
Renee Shields and
Christine Gallagher. Comments will be accepted thru December 14, 2012.
This week, the National Geodetic Survey's Corbin Training Center held an
Astronomic Azimuth Workshop. At the event, surveyors and subject matter experts from around the nation received hands-on instruction. Azimuth determination is a critical element of every survey...
more
In coordination with federal, state, and local officials, NOAA's National Geodetic Survey (NGS) began conducting remote sensing operations in response to Hurricane Sandy on October 31st, just hours after Hurricane Sandy made landfall. NGS worked with partners including officials from the states of New York, New Jersey, Connecticut, Rhode Island, and North Carolina, as well as with the Federal Emergency Management Agency (FEMA), the U.S. Army Corps of Engineers, the U.S. Geological Survey, the U.S. Coast Guard, the Civil Air Patrol, and the National Geospatial-Intelligence Agency...
more
NOAA's National Geodetic Survey (NGS) has been coordinating with federal, state, and local officials and conducting remote sensing efforts in response to Hurricane Sandy. Requests came in from the U.S. Coast Guard District in New York for imagery collection of waterways supporting the ports of New York and New Jersey to verify the location of navigational aids and storm debris...
more
NOAA's National Geodetic Survey (NGS) has converted one of its most popular publications, Bench Mark Reset Procedures, into an EPUB format for use with popular electronic devices, such as the Kindle and iPad!...
more
This week, NOAA released a new web application to allow users to view National Geodetic Survey (NGS) geodetic control across the United States and its territories using Google Maps...
more
Historical Topographic Sheets ("T-Sheets") produced by the U.S. Coast and Geodetic Survey are referenced to various horizontal datums in use over the two hundred years since the first Survey of the Coast in 1816. To use these maps to document coastal change, a conversion has to be made from the horizontal datum used at the time the map was published to the datum in which modern data are expressed. Upon successful completion of rigorous testing now underway, the National Geodetic Survey (NGS) will soon provide a free...
more
This week, NOAA's National Geodetic Survey (NGS) and Office of Coast Survey (OCS) participated in Know the Coast Day, an educational open house for K-12 students and the general public at the University of New Hampshire (UNH) Joint Hydrographic Center Center for Coastal and Ocean Mapping...
more
NGS is representing the United States at the International Symposium on Gravity, Geoid, and Height Systems in Venice, Italy on Oct. 9–12. The symposium will address the creation and maintenance of global vertical height systems, which are critical for many surveying, engineering, and scientific activities...
more
This week, the National Geodetic Survey's (NGS) Geodetic State Advisor for Florida is installing a survey marker at the U.S Coast Guard (USCG) station in Jacksonville, Florida. The marker will allow the Coast Guard to calibrate GPS systems used on their ships...
more
The
Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Project is about to begin an airborne gravity survey aboard an aircraft owned by the Bureau of Land Management's Alaska Fire Service. The Pilatus PC-12 aircraft allocated for the survey is primarily tasked with fire spotting in Alaska and the lower 48 states...
more
NOAA recently released version 3.2 of the Horizontal Time-Dependent Positioning (HTDP) utility, allowing users to better estimate how points on the Earth's surface move due to plate tectonics and earthquakes...
more
Within 24 hours of Hurricane Isaac departing the Gulf Coast region, the National Geodetic Survey (NGS) immediately began emergency response aerial surveys with two NOAA aircraft to ensure vital waterways, ports, and coastal infrastructure were safe for maritime commerce...
more
The National Geodetic Survey (NGS) will return to Yellowstone National Park for the fourth consecutive year to perform GPS and absolute gravity measurements in support of a research study conducted in collaboration with the University of Colorado, Boulder, and the University of Luxembourg...
more
Drought conditions have lowered water levels on the Mississippi River and are causing hazards to navigation. By request of the Louisiana Department of Transportation and Development through NOAA's Gulf Coast regional navigation manager, staff from the National Geodetic Survey recently collected
imagery from aboard NOAA's King Air aircraft...
more
The National Geodetic Survey has determined that the GEOID12 model was developed using erroneous input control points, primarily in the Gulf Coast region. Click
here for more information. NGS immediately corrected these errors and developed the GEOID12A replacement model. GEOID12A is now available for public analysis and comment on the
NGS Beta website for GEOID12A and will soon be released for production...
more
08/17/2012 -
Revision of GPS Project Adjustment and Submission Process
NOAA's National Geodetic Survey (NGS) is revising the adjustment and submission process (i.e., "Bluebooking") for GPS projects. NGS asks users to wait until the revision is complete before submitting new projects using the NAD 83(2011/PA11/MA11) epoch 2010.00 realization and geoid model GEOID12A. We estimate the revision will be finalized by September 30, 2012. Please check the NGS website for updates and additional information.
As part of a long-term cooperative agreement between NOAA's National Geodetic Survey (NGS) and Sejong University, Korea, NGS is hosting Dr. Tae-Suk Bae from August 6 to 20...
more
The National Geodetic Survey (NGS) completed a component spatial relationship survey aboard the NOAA Ship Henry B. Bigelow while it was in dry dock in Charleston, South Carolina, the week of July 23...
more
From July 23-27, National Geodetic Survey (NGS) staff presented at the International GNSS Service (IGS) Workshop, held in Olsztyn, Poland. The IGS sets world standards for high-accuracy use of Global Navigation Satellite Systems (GNSS) data and products...
more
Since the early 1800s, geographers have wrestled with various methods of mapping the U.S. shoreline. As technology has changed, new approaches have emerged. Today, extracting a shoreline from Light Detection and Ranging (LIDAR) data...
more
This week, the National Geodetic Survey (NGS) began a project with the U.S. Geological Survey (USGS) and the National Park Service to evaluate the capabilities of a next generation USGS topographic-bathymetric Light Detection and Ranging (LiDAR) system...
more
In the last week, the National Geodetic Survey has released a new height transformation model for surveyors, engineers, and the scientific community involved in water flow and the determination of heights with respect to mean sea level...
more
In the first week of July, NOAA’s National Geodetic Survey (NGS) released the results of three major improvements to the National Spatial Reference System (NSRS). The NSRS is the consistent coordinate system that defines latitude, longitude, height, scale, gravity, and orientation throughout the United States and its territories...
more
This week, the National Geodetic Survey (NGS) is assisting the University of Arizona and the U.S. Geological Survey with a study that seeks to calibrate gravity changes to changes in water table levels...
more
Representatives from the National Geodetic Survey (NGS) participated in the 13th Annual Joint Airborne LIDAR Bathymetry Technical Center of Expertise (JALBTCX) Airborne Coastal Mapping and Charting Workshop held June 20-22 in Chicago...
more
The National Geodetic Survey's (NGS) Real-time GNSS Symposium scheduled for July 2012 has unfortunately been postponed. NGS hopes to reschedule the program for the near future....
more
The National Geodetic Survey (NGS) recently released a new Web utility titled "Leveling Online Computations User Service" (LOCUS). LOCUS performs a preliminary adjustment of geodetic leveling...
more
Beginning in May, and continuing through July 7, 2012, the National Geodetic Survey's (NGS) Pacific region geodetic advisor is in Pohnpei, Federated States of Micronesia, to assist the region with creating a height modernization survey...
more
The National Geodetic Survey (NGS) contributed to Canada's Geodetic Survey meetings this week in support of harmonious standards for mapping across North America...
more
ForeSee Results of Ann Arbor, Michigan, formally recognized the National Geodetic Survey (NGS) for exceptional website customer satisfaction results. ForeSee Results uses the American Customer Satisfaction Index (ACSI) methodology to measure customer satisfaction...
more
The National Geodetic Survey (NGS) recently released the most extensive redesign of its geodetic control datasheet in the past decade. Several new data elements have been added to the datasheet...
more
From May 6-10, the National Geodetic Survey (NGS) represented the United States at the International Federation of Surveyors (FIG) Working Week 2012 conference in Rome...
more
In response to stakeholder and NGS staff concerns, NGS has developed several modifications to the format of the
NGS datasheet—the primary method for accessing the passive control network of the National Spatial Reference System (NSRS)...
more
This week the National Geodetic Survey (NGS) is providing training to staff from six National Estuarine Research Reserves (NERR) from across the country at the NGS training facility in Corbin, Virginia...
more
NOAA's National Geodetic Survey and Natural Resources Canada have agreed, in writing, to develop a common vertical reference system in North America that establishes a common definition of "zero height."...
more
Alongside the Federal Emergency Management Agency and the U.S. Army Corps of Engineers, a representative from NOAA's National Geodetic Survey co-presented a session...
more
The National Geodetic Survey's (NGS) Coastal Mapping Program, which surveys the nation's 95,000-mile coastline, provided an estimated $241 million in total benefits to the nation in 2011, according to an independent socioeconomic study...
more
The 2011 earthquake near Washington, D.C., shook the nation's capital with enough force to damage the Washington Monument. But not all effects of the earthquake are visible to the naked eye. Experts from the National Geodetic Survey (NGS) are...
more
On March 21, two National Geodetic Survey (NGS) staff,
Dr. Chris Parrish and Dr. Inseong Jeong, received awards at the American Society for Photogrammetry and Remote Sensing Conference in Sacramento, California...
more
As part of an on-going cooperative relationship with the National Park Service, the National Geodetic Survey (NGS) conducted a high-accuracy vertical control (leveling) campaign this week on the National Mall in Washington DC...
more
From March 5-9, National Geodetic Survey (NGS) staff attended the
Hawaii Pacific Geographic Information Systems (GIS) Conference 2012 held in Honolulu, HI. NGS Director, Juliana Blackwell, presented the keynote, "Positioning for the Pacific," highlighting NGS' and NOAA's geospatial activities in the Pacific region...
more
Beginning around March 1, weather and other conditions permitting, the National Geodetic Survey will aid the National Park Service by conducting geodetic leveling observations of the Washington Monument. The survey effort will help evaluate whether any displacement resulted from the August 23, 2011, earthquake...
more
The National Geodetic Survey recently represented the United States at the joint meeting of two International Association of Geodesy working groups in Vienna, Austria. The meeting focused on how absolute gravimeter comparisons are conducted...
more
The National Geodetic Survey recently released the
GPS/GNSS Bibliography for 2011 as part of its Continuously Operating Reference Stations (CORS) Web portal. The bibliography is a compilation of peer-reviewed articles published in...
more
Dr. Kathryn Sullivan, Assistant Secretary of Commerce for Environmental Observation and Prediction, toured the Joint Hydrographic Center at the University of New Hampshire (UNH) this week to discuss future hydrographic needs and research, including the Integrated Ocean and Coastal Mapping (IOCM) program...
more
The National Geodetic Survey's Continuously Operating Reference Stations (CORS) program provided more than $1 billion in direct benefits in FY2011. These benefits represent a 29 percent increase over those for FY2010...
more
NOAA's National Geodetic Survey (NGS) is in the process of developing new Geographic Information System (GIS) software tools for display and analysis of NGS survey data. The tools convert the output from NGS GPS processing, survey control network adjustment, and geodetic leveling adjustment software...
more
The Federal Geodetic Control Subcommittee (FGCS) conducted its semi-annual meeting on January 10 at NOAA Headquarters in Silver Spring, Maryland. FGCS is chaired by the National Geodetic Survey (NGS)...
more
For a second four-year term beginning on Jan. 1, NGS is leading an international effort to produce extremely accurate orbits for all satellites in the Global Positioning System (GPS). This vital endeavor ensures worldwide users can achieve accurate positions...
more
