Tag: Technology

Natural History / Natural History - 7 years ago

What is lightering?

A lightering barge being positioned next to the freighter M/V Montrose in 2007. (image courtesy of U.S. Coast Guard) Lightering is not possible in all oil spill scenarios. It depends on many factors including the type of oil that is spilled. A...

Natural History / Natural History - 7 years ago

What is air gap?

By a margin of 2.1 feet, the USS New York clears the Huey P. Long Bridge on June 27, 2009. | Download Air gap measurements are updated every six minutes to account for changes in water level and bridge height, due to bridge traffic, air temp...

Natural History / Natural History - 7 years ago

What is VDatum?

VDatum was used to create this high-resolution Digital Elevation Model of Tampa Bay, Florida. The model merges NOAA hydrographic survey data and topographic data from the U.S. Geological Survey. VDatum stands for Vertical Datum Transformation,...

Natural History / Natural History - 7 years ago

How do we monitor tides?

This image shows the Chesapeake City tide station, an active water level gauge that is part of NOAA's National Water Level Observation Network, located in Chesapeake City, Md. The Center for Operational Oceanographic Products and Services main...

Natural History / Natural History - 8 years ago

What is marine forensic science?

A NOAA scientist uses calipers to measure sea turtle eggs. The NOAA Marine Forensics Unit is the only laboratory in the country dedicated to the forensic analysis of marine species. The group's mission began in the 1970s when Congress passed a...

Natural History / Natural History - 8 years ago

How is bathymetric data used?

A bathymetric image of Lake Huron. In the same way that topographic maps represent the three-dimensional features (or relief) of overland terrain, bathymetric maps illustrate the land that lies underwater. Bathymetric data, which includes info...

Natural History / Natural History - 8 years ago

What is bathymetry?

Bathymetry map of East Flower Garden Bank. The term "bathymetry" originally referred to the ocean's depth relative to sea level, although it has come to mean “submarine topography,” or the depths and shapes of underwater terrain. In the same w...

Natural History / Natural History - 8 years ago

How is ocean observing data used?

Coastal communities use ocean observing data to prepare for floods and other natural disasters. NOAA orchestrates the collection of ocean data through a federal, regional, and private-sector partnership called the U.S. Integrated Ocean Observi...

Natural History / Natural History - 8 years ago

How do we measure currents?

Crew from the NOAA Ship Rainier assists in a current survey of waters near Sitka, Alaska. Results from current surveys are used to improve tidal current predictions and to support new operational forecast models. An observer stands on a ship,...

Natural History / Natural History - 9 years ago

What is remote sensing?

A LIDAR (Light Detection and Ranging) image created with data collected by NOAA's National Geodetic Survey. Remote sensors collect data by detecting the energy that is reflected from Earth. These sensors can be on satellites or mounted on airc...

Natural History / Natural History - 9 years ago

Who first charted the Gulf Stream?

Alexander Agassiz, a preeminent oceanographer of the 19th century, attributed the first scientific basis for exploring the Gulf Stream to American statesman Benjamin Franklin.  Franklin published this map of the Gulf Stream in 1769, 200 years bef...

Natural History / Natural History - 9 years ago

What is IOOS?

Buoys are just one of the many tools needed to collect ocean observation data. This image shows three ten-meter hurricane buoys prior to deployment. IOOS coastal and marine data (e.g., water temperature, water level, currents, winds, and waves...