Tag: Ocean Observations

Natural History / Natural History - 3 months ago

What is a meteotsunami?

Storm clouds loom over Lake Superior. When conditions are right, meteotsunamis may occur in many bodies of water around the world, including the Great Lakes. Some meteotsunamis have been observed to reach heights of 6 feet or more. Meteotsunamis a...

Natural History / Natural History - 6 months ago

What is a current survey?

Did you know? An Operational Forecast System provides a nowcast and forecast (up to 48 hours) of water levels, currents, salinity, water temperatures, and winds for a given area. These systems are located in coastal waters and the Great Lakes in...

Natural History / Natural History - 11 months ago

What is a Rossby wave?

Rossby waves naturally occur in rotating fluids. Within the Earth's ocean and atmosphere, these planetary waves play a significant role in shaping weather. This animation from NASA's Goddard Space Flight Center shows both long and short atmosphe...

Natural History / Natural History - 1 year ago

What is a tide gauge?

The rise and fall of the tides play an important role in the natural world and can have a marked effect on maritime-related activities. The image aboves shows the NOAA San Francisco Tide Station, in operation for more than 150 years. A tide ga...

Natural History / Natural History - 1 year ago

What is a catcher beach?

A classic example of a catcher beach along the shores of Hawaii. This map shows debris concentrations from an aerial survey done in Alaska in 2012. The map points to two known catcher areas, along Kruzof Island and Gore Point. Not to be...

Natural History / Natural History - 1 year ago

What is a King Tide?

A king tide viewed from south of Pier 96 in San Francisco, California, in February, 2016. Credit: Dave Rauenbuehler A King Tide is a non-scientific term people often use to describe exceptionally high tides. Tides are long-period waves that ro...

Natural History / Natural History - 1 year ago

What is the Pineapple Express?

This animation from NOAA's Earth System Research Laboratory shows an atmospheric river event in January 2017. Atmospheric rivers are relatively narrow regions in the atmosphere that are responsible for most of the horizontal transport of water va...

Natural History / Natural History - 1 year ago

What is an oil seep?

A natural tar seep offshore of Gaviota in Santa Barbara County, California. Credit: Donna Schroeder/U.S. Geological Survey Did you know that naturally occurring oil seeps from the seafloor are the largest source of oil entering the world ocean...

Natural History / Natural History - 2 years ago

What is an oil spill trajectory?

VIDEO: Predicting where oil may go in the water is no easy task. Here's what you need to know in a minute. Transcript During the threat of an oil spill, responders need to know where that spilled oil will go in order to protect shorelines wi...