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oceanography

An illustration of the (A) pre-whaling and (B) post-whaling interactions between whales, shrimp-like krill (pink), and photosynthesizing organisms known as phytoplankton (top left of each panel) in the Southern Ocean. The decimation of whales in this ecosystem and coincident drop in krill in some former whaling grounds implies a large shift in the amount of iron available due to the loss of whales and thus micronutrients in whale poop (lower left).

Whale Poop Could Explain Ocean’s Mysterious Decline After Mass Whaling

Categories Earth, Energy & Environment, Life & Non-humans

A wave channel experiment used a zoom lens camera and a custom Python script to process imagery of four different zones: wave generation, shoaling and breaking, air detained by a plunging jet of water, and air trapped at bores where water level rises rapidly. The study provided essential insights into the physical and chemical impacts of microplastics at the air-water interface.

Microplastic pollution increases sea foam height and stability

Categories Earth, Energy & Environment

This schematic shows the difference in length between a PCFG gray whale born in 2020 vs one born prior to the year 2000. OSU researchers determined that a full-grown PCFG gray whale born in 2020 is expected to reach an adult body length that is 1.65 meters (about 5 feet, 5 inches) shorter than a gray whale born prior to 2000. For PCFG gray whales that grow to be 38-41 feet long at full maturity, that accounts for a loss of more than 13% of their total length.

Pacific coast gray whales have gotten 13% shorter in the past 20-30 years

Categories Life & Non-humans

Viruses that can help ‘dial up’ carbon capture in the sea

Categories Technology

The buoy used to collect barnacles to conduct the growth experiment for this study.

Barnacles may help reveal location of lost Malaysia Airlines flight MH370

Categories Life & Non-humans

Freshwater bodies like this braided river in New Zealand are among those that researchers measured with water-level sensors and GPS during validation efforts for the international SWOT satellite, which launched in December. Credit: Alyssa LaFaro, UNC Research

Crews Head Down River, Out to Sea to Prep New SWOT Water Satellite

Categories Earth, Energy & Environment, Space, Technology

A new study has assessed whether long-term global changes in waves and storm surges have impacted global coastlines.

Long-term changes in waves and storm surges have not impacted global coastlines

Categories Earth, Energy & Environment

Glacier

Sea level rise could be double previous estimates, NASA/UCI study finds

Categories Earth, Energy & Environment

Blue button jellies, known by their scientific name Porpita, float on the ocean’s surface using a round disc, and drift where the current takes them.

Converging ocean currents bring floating life and garbage together

Categories Earth, Energy & Environment

Map of depth-integrated anthropogenic carbon Credit: Laura Cimoli/GLODAP

Giant underwater waves affect the ocean’s ability to store carbon

Categories Earth, Energy & Environment, Physics & Mathematics

Sailfish

Watch the fastest fish in the world hunt its prey – for the first time

Categories Life & Non-humans

Oxygen starved Pacific Ocean chart

Pacific Ocean’s oxygen-starved ‘OMZ’ is growing, new Princeton research finds

Categories Earth, Energy & Environment

Deep-sea Soot

Categories Bloggers

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