Sea ice over the Arctic Ocean likely reached its maximum extent for the year, at 14.48 million square kilometers (5.59 million square miles) March 17, the second lowest in the 39-year satellite record, falling just behind 2017. This year’s maximum extent is 1.16 million square kilometers (448,000 square miles) below the 1981 to 2010 average maximum of 15.64 million square kilometers (6.04 million square miles).
Arctic Sea Ice Maximum Second Lowest in Satellite Record
Detecting Methane from Miles Away
A new field instrument developed by a collaborative team of researchers can quantify methane leaks as tiny as 1/4 of a human exhalation from nearly a mile away. CIRES, NOAA, CU Boulder, and NIST scientists revamped and “ruggedized” Nobel Prize laser technology—turning a complex, room-sized collection of instruments into a sleek, 19-inch portable unit to tote into the field near oil and gas operations. The instrument collects precise, nonstop data, providing game-changing information critical for safe industry operations and controlling harmful greenhouse gas emissions.
Mapping Our Planet, One Ocean at a Time
It could be said that Earth’s oceans are the final frontier in exploration. More than 80 percent of the world's oceans remain unexplored and unmapped. Human activities in our oceans continue to increase, and scientists from around the globe have come together to make mapping the entire ocean a reality by 2030. To aid in this endeavor, scientists from NCEI and other institutions have developed an algorithm that will play a significant role in cultivating a seabed mapping strategy for the North Atlantic Ocean and beyond.