Skip to main content

Home > News > 2016 NGS Weekly Stories

NGS Weekly Archive 2016

Website Maintenance: NGS is transitioning to �HTTPS-only� on December 27th, 2016. If you have unexpected website errors, please contact NGS.Webmaster@noaa.gov 12.19.2016

12/15/2016 - Communicating NOAA Science through Master Naturalist Program

NGS taught a Maryland Master Naturalist class on coastal geomorphology, wetlands, and habitat resiliency in the face of sea level rise to showcase the use of a high-accuracy vertical control network... more

12/08/2016 - Supporting Surveying Efforts in Alabama

At the request of Alabama's Troy University Surveying and Geomatics Sciences Department, NGS measured a new Electronic Distances Measuring Instruments Calibration Base Line (CBL) in Brundidge, Alabama. NGS provided guidance for mark setting and other preparations... more

12/01/2016 - U.S. and Cuba Collaborate on Navigation Safety Improvements

NOAA's Navigation Services programs welcomed representatives of Cuba's National Office of Hydrography and Geodesy (ONHG) to Silver Spring this week to pursue collaboration on issues outlined in the NOAA-ONHG Memorandum of Understanding. Representatives from both agencies reviewed, revised, and are poised to approve a new international chart-the first cooperative charting product between the U.S. and Cuba during the modern era... more

11/17/2016 - Chesapeake Bay Sentinel Site Cooperative Tour

NGS hosted a tour of two sites in the Chesapeake Bay Sentinel Site Cooperative- Jug Bay Wetland Sanctuary and Smithsonian Environmental Research Center- for more than a dozen NOAA scientists, managers, and educators to show high-accuracy geospatial infrastructure... more

11/10/2016 - Preparing for the International Great Lakes Datum (IGLD) 2020

Senior researchers from the National Geodetic Survey (NGS) and the Center for Operational Oceanographic Products and Services (CO-OPS) met with their Canadian counterparts at the 101st Meeting of the Coordinating Committee on Great Lakes Basic Hydraulic and Hydrologic Data in Burlington, Vermont. They discussed the draft plan... more

11/03/2016 - New Educational Video on VDatum

NGS developed a new educational video in collaboration with The COMET ® Program to add to its growing video library suite. "NOAA's VDatum: Transforming Heights between Vertical Datums,"... more

10/27/2016 - Sharing Knowledge of SET Technology at Wetland Resiliency Workshop

NGS served as a subject matter expert on wetland resiliency at a regional workshop in Cape Charles, VA. The workshop brought together scientists who use Surface Elevation Table (SET) technology to monitor wetland elevation changes in sites oughout the Chesapeake Bay... more

10/20/2016 - Geodesy's Role in the National Park Service

NGS's Alaska Regional Geodetic Advisor attended the National Park Service's (NPS) Centennial Science and Stewardship Symposium in Fairbanks, Alaska, to participate in outreach events highlighting the role of geodesy in the NPS... more

10/13/2016 - NGS Completes Transition to Regional Geodetic Advisor Program

NGS has completed the transition from a primarily state geodetic advisor program, which covered only 24 participating states, to a new regional advisor program that covers the entire United States across 14 regions... more

10/12/2016 - NGS Collects Post-Hurricane Aerial Imagery to Support Emergency Response Efforts

On October 7, NGS began collecting post-Hurricane Matthew aerial oblique imagery along the Atlantic coast from Key Largo, FL, to Cape Henry, VA. By October 12, nearly 5,200 images covering more than 1,200 square miles were collected... more

10/06/2016 - NGS Co-Hosts North American Compsrison of Absolute Gravimeters

NGS and the National Institute of Standards and Technology are co-hosting a North American Comparison of Absolute Gravimeters at NOAA's Table Mountain Gravity Observatory in Boulder, CO. Twelve Gravimeters - instruments that measure the difference in the force of gravity from one place to another... more

09/29/2016 - Regional Conference on Coastal Resilience

The National Geodetic Survey (NGS) and Center for Operational Oceanographic Products and Services (CO-OPS) of NOAA's National Ocean Service, and NOAA's National Weather Service participated in the Hampton Roads Water Symposium hosted by the U.S. Geological Survey and the Hampton Roiads Planning District Commission on September 20. The focus was... more

09/22/2016 - Pacific Geodetic Advisor Supports Republic of the Marshall Islands

NGS's Pacific Geodetic Advisor is working with the Division of Lands and Survey, Republic of the Marshall Islands (RMI), to upgrade the Geodetic control of Majuro Atoll following NGS Height Modernization guidelines. The project will help RMI develop new models to delineate locations vulnerable to seawater inundation during extreme high tide events and adaptation strategies for projected sea level rise scenarios... more

09/15/2016 - NGS Assists Naval Surface Warfare Center

NGS is assisting the Naval Surface Warfare Center in Norco, California, by performing absolute gravity measurements to calibrate the facility's manometer (a device used to measure a pressure differential). The Norco facility is one of the U.S. Navy's largest scientific and engineering research and analysis centers... more

09/08/2016 - NGS at Geocaching Hampton Roads Mega Event

At the Geocaching Hampton Roads Mega Event, September 3, in newport News, VA, NGS educated geocachers on how to help recover survey control marks and provide important documentation for NGS' positional databaase. Geocaching is a recreational activity... more

08/25/2016 - NGS Collects Great Lakes Imagery

NGS is continuing an extensive aerial oblique and nadir collection of georeferenced Great Lakes imagery, which began at the beginning of August, but was interrupted to collect emergency response imagery of the Louisiana Flood. The Great Lakes imagery will be used as a baseline to assess hazards to navigation, impacts of future coastal events, and coastal zone management... more

08/18/2016 - NGS Collects Aerial Imagery of Louisiana Floods

NGS collected and made available imagery to assist federal, state, and coastal managers in assesing damage from flooding in Louisiana. At the request of the Federal Emergency Management Agency and the National Weather Service, NGS began collecting imagery using coastal mapping and emergency response aircraft on August 14, and will continue to collect imagery, weather permitting. More than 2,000 images have been collected to date. NOAA's aerial imagery aids safe navigation and captures damage to coastal aresa caused by storms... more

08/11/2016 - Collecting Lidar Data along Florida's Outer Reef

NGS wrapped up three weeks of topo-bathy (land elevation and water depth) Lidar data collection along the outer reef of Florida. The data were acquired using the Office of Marine and Aviation Operations' Twin Otter aircraft equipped with NGS's new high-resolution, near-shore topo-bathy lidar system. Lidar data will support... more

08/04/2016 - Chief Geodesist Serves on U.N. Committee and Working Group

NGS's Chief Geodesist (acting) served as a delegate for the U.S. mission to the Sixth Session of the United Nations (U.N) Committee of Experts on Global Geospatial Information Management and as a member of the U.N. Global Geodetic Reference Frame working group in New York City August 1 through August 5... more

07/28/2016 - GRAV-D Presentation at NOAA Emerging Technologies Workshop

The NOAA Observing Systems Committee held an emerging technologies workshop designed to highlight new technologies and capabilities and to explore how they might be used to meet NOAA observation requirements and affect NOAA programs in the FY 2019-2023 time frame. NGS's GRAV-D Project made a presentation regarding Small Business Innovation Research grants awarded to... more

2016 Experimental Geoid Models xGEOID16A and xGEOID16B Now Available 07.21.2016

07/21/2016 - NOS Co-Hosts Airborne Light Detection and Ranging (LIDAR) Workshop

The NBational Geodetic Survey (NGS), the Office of Coast Survey (OCS), and the U.S. Army Corps of Engineers (USACE) co-hosted the annual Joint Airborne LIDAR Bathymetry Technical Center of Expertise(JALBTCX) workshop in Silver Spring, Maryland July 19 to 21... more

07/14/2016 - NGS and The COMET® Program Produce Educational Video

NGS and COMET® - a world leader in education and training for the environmental sciences - collaborated on a new educational video. The video explains the role of the topo-bathy lidar products (a remote sensing platform) in NGS's mapping and charting program, and how these products provide a critical dataset for coastal resilience, coastal intelligence, and place-based conservation... more

Save the date! The National Geodetic Survey will host the 2017 Geospatial Summit April 24-25, 2017 in Silver Spring, Maryland 06.30.2016

06/30/2016 - Updating Charts and Maps in the Dry Tortugas

National Geodetic Survey (NGS) | National Centers for Coastal Ocean Science (NCCOS) | Integrated Ocean Observing System (IOOS) | Office of Coast Survey (OCS)

Utilizing a coordinated Integrated Ocean and Coastal Mapping (IOCM) approach, NGS is working with OCS and NCCOS to identify gaps in Florida Keys National Marine Sanctuary (FKNMS) bathymetry maps in the Dry Tortugas, and supplying new Light Detection and Ranging (lidar) data where needed... more

06/23/2016 - NOAA Presents at Alaska Mapping Executive Committee Strategy Planning Meeting

NGS Director, Juliana Blackwell, presented at the Alaska Mapping Executive Committee Strategy Planning Meeting in Anchorage this week where she provided a NOAA update, including geospatial framework, shoreline mapping... more

06/16/2016 - NOS Navigation Services Leaders to Meet Counterparts in Cuba

National Geodetic Survey (NGS) | National Centers for Coastal Ocean Science (NCCOS) | Integrated Ocean Observing System (IOOS) | Office of Coast Survey (OCS)

Directors and subject experts from NOS navigation services offices traveled to Havana this past weekend for meetings from June 13-16. The sessions kicked off implementation of the work plan agreed to in March, in the Memorandum of Understanding (MOU) between NOS and Cuba's National Office of Hydrography and Geodesy... more

06/09/2016 - Did the Earth Move? Twelve Million NOAA Data Files Will Tell

Data from NOAA's Continuously Operating Reference Stations (CORS) are frequently used for commerical surveying, engineering, and scientific activities. The data must be periodically reprocessed to take advantage of the latest geophysical models. NGS scientists complete this reprocessing, called REPRO, to determine... more

ADJUST and UTILITIES - An updated version of ADJUST (and its utilities) has been released 06.08.2016

06/02/2016 - Height Modernization Partners' Annual Meeting

Last week, NGS and its Great Lakes partners hosted the annual Height Modernization partner meeting in La Crosse, Wisconsin. This year's meeting was held in conjunction with... more

05/26/2016 - 'Geodesy Summer School' Draws International Participants

More than 60 scientists and students from 14 countries are attending the "2016 Airborne Gravimetry for Geodesy Summer School" that NGS is hosting this week in Silver Spring, MD. The course provides technical guidance on... more

05/20/2016 - Site Survey to Improve International Terrestrial Reference Frame

An NGS team is conducting a site survey at the National Radio Astronomy Observatory in Pie Town, NM. The team is establishing, to a very high level of precision, the locations of two geodetic instruments (a Very Long Baseline Array antenna station and a Global Navigation Satellite System tracking station). The data will be used to... more

05/12/2016 - Unmanned Test Flight Data Meet Mission Requirements for GRAV-D Project

The National Geodetic Survey's Gravity for the Redefinition of the American Vertical Datum (GRAV-D) project completed preliminary processing of data from an optionally piloted aircraft test conducted a few weeks ago and concluded that the data meets mission requirements... more

04/28/2016 - GRAV-D Project Reaches Major Milestone

NGS' Gravity for the Redefinition of the American Vertical Datum (GRAV-D) project reached the 50 percent mark this month toward its goal to collect data for the United States and territories. The project measures gravity from an aircraft to support more accurate height measurements. Once complete, GRAV-D will... more

04/21/2016 - NGS Trains NASA GIS Team for Subsidence Research

NGS personnel are training members of NASA's GIS Team this week in geodetic leveling data collection and reduction procedures. The team is implementing a research plan to quantify subsidence in the area of the NASA Langley Research Center in Hampton, VA... more

04/15/2016 - GRAV-D Project Tests Unmanned Aircraft

On Thursday, April 14, NGS tested a gravity-measurement device on an unmanned aircraft out of Manassas, Virginia, as part of its Gravity for the Redefinition of the American Vertical Datum (GRAV-D) project to produce highly accurate height measurements. Test flights took place in "unmanned mode" with a safety pilot aboard... more

04/07/2016 - Record Month for Online Positioning User Service (OPUS)

NGS's OPUS helped surveyors and engineers more than 83,000 times in March 2016, reaching a new high total for the popular web tool that ties individual user surveys into the common National Spatial Reference System. March usage was buoyed by... more

03/31/2016 - Geodetic Training for U.S. Fish & Wildlife Service

In 2015, the U.S. Fish and Wildlife Service (USFWS) received funding to establish control at each of its Region 5 wildlife refuges. Each refuge now has high-quality vertical benchmarks connected via geodetic leveling to nearby existing level lines. To help the USFWS ensure that each refuge can take advantage of this investment, NGS provided instruction... more

03/24/2016 - Training to Perform Accurate Geodetic Leveling Surveys in North Carolina

The week of March 21, NGS provided on-site training in geodetic leveling river crossing data collection and processing procedures to employees of the North Carolina Geodetic Survey. NGS has recently developed new procedures for surveyors and geodesists to perform leveling surveys across rivers, valleys, or other barriers. A new chapter has been added to the NGS geodetic leveling manual to describe these updated techniques... more

03/17/2016 - Aerial Imagery Helps Assess Impacts of El niño

NGS deployed the NOAA Office of Marine and Aviation Operation's King Air aircraft to complete the collection of geo-referenced oblique imagery of the West Coast. More than 3,000 images were collected from the U.S. - Mexico border to Cape, Flattery, WA. The imagery will be used to assess impacts of the ongoing El Niño event in several NOS mission areas, including... more

03/10/2016 - Guidance Released on Surface Elevation Table (SET) Technique

The National Park Service, in collaboration with NOAA and the U.S. Geological Survey, recently published The Surface Elevation Table and Marker Horizon Technique: A Protocol for Monitoring Wetland Elevation Dynamics, building on more than 20 years of expertise using SET technology to understand processes of vertical wetland growth... more

03/03/2016 - NGS Hosts Events for 'National Week at the Labs' Initiative

As part of National Week at the Labs-a joint initiative of the White House Council on Women and Girls and My Brother's Keeper-the NGS Table Mountain Geophysical Observatory near Boulder, Colorado, hosted a group of middle and high school students with a presentation that included surveying techniques used in the past and how survey marks are recovered... more

02/25/2016 - International Lidar Mapping Forum

NGS personnel attended the annual International LIDAR Mapping Forum in Denver, Colorado, February 22 to 24. The forum is a technical conference and exhibition focused on the latest airborne, terrestrial, and underwater Light Detection and Ranging (LIDAR)technology, as well as emerging remote sensing and data collection tools and technologies... more

02/18/2016 - New Video for Surveyors and GIS Professionals

NGS, in collaboration with education partner The COMET Program, developed a new video titled "Best Practices for Minimizing Errors during GNSS Data Collection." Available via the NGS Video Library... more

02/11/2016 - Post-Blizzard Oblique Imagery Supports NOS Mission Areas

NGS collected oblique imagery along the East Coast from Cape Hatteras, North Carolina, to Montauk, New York, after the recent blizzard and heavy rain to assess impacts to several NOS mission areas, including navigation and coastal zone management... more

02/04/2016 - Forum to Strengthen the Surveying Profession's Future

NGS was one of 18 surveying-related organizations invited to participate in a forum to develop strategies to address future challenges to the surveying profession. The Future of Surveying Forum, sponsored by the National Council of Examiners for Engineering and Surveying on January 22, assembled representatives of surveying-related organizations... more

01/21/2016 - NGS Completes Emergency Response Effort following Mississippi River Flooding

NGS completed its emergency response effort following the flooding of the Mississippi, Arkansas, and Maramec Rivers. The aerial imagery data collection took place from January 1-18, covering an area from St. Louis, Missouri, to Baton Rouge, Louisiana. The Federal Emergency Management Agency is using the imagery to provide damage assessments... more

01/14/2016 - Presenting a Public Webinar on the Geoid Validation Study of 2014

In 2014, the National Geodetic Survey(NGS) undertook a significant project designed to validate the slope of a gravimetric geoid created with the aid of airborne gravity as part of its Gravity for the Redefinition of the American Vertical Datum (GRAV-D) project. The project included over 200 new survey marks spread across Iowa... more

Update to NOS NGS 3 with Alternative Method to Leveling for Crossing Rivers or Other Barriers 11.20.2015

01/14/2016 - Presenting a Public Webinar on the Geoid Validation Study of 2014

In 2014, the National Geodetic Survey(NGS) undertook a significant project designed to validate the slope of a gravimetric geoid created with the aid of airborne gravity as part of its Gravity for the Redefinition of the American Vertical Datum (GRAV-D) project. The project included over 200 new survey marks spread across Iowa... more

01/07/2016 - FEMA Relies on NGS' Images of Midwest Flooding

NGS' imagery of recent flooding in the Midwest is now online to assist the Federal Emergency Management Agency (FEMA), states, and localities with damage assessment. NGS collected aerial images around the Mississippi, Arkansas, and Meramec Rivers last week. FEMA is using NGS’s oblique imagery—images taken at an angle rather than straight down—as its primary data source... more