oceanlove

   The land beneath the New York City area, including the borough of Queens, pictured here, is moving by fractions of inches each year. The motions are a legacy of the ice age and also due to human land usage. NASA/JPL-Caltech Scientists using space-based radar found that land in New York City is sinking at varying rates from human and natural factors. A few spots are rising.   Parts of the New York City metropolitan area are sinking and rising at different rates due to factors ranging from land-use practices to long-lost glaciers, scientists have found. While the elevation changes seem small – fractions of inches per year – they can enhance or diminish local flood risk linked to sea level rise.   The new study was published Wednesday in Science Advances by a team of researchers from NASA’s Jet Propulsion Laboratory in Southern California and Rutgers University in New Jersey. The team analyzed upward and downward vertical land motion – also known as uplift an...

International Sea Level Satellite Spots Early Signs of El Niño  센티넬-6 위성의 국제 해수면 관측에서 엘니뇨 초기 징후 발견 This animation shows a series of waves, called Kelvin waves, moving warm water across the equatorial Pacific Ocean from west to east during March and April. The signals can be an early sign of a developing El Niño, and were detected by the Sentinel-6 Michael Freilich sea level satellite. Credits: NASA/JPL-Caltech Kelvin waves, a potential precursor of El Niño conditions in the ocean, are rolling across the equatorial Pacific toward the coast of South America. The most recent sea level data from the U.S.-European satellite  Sentinel-6 Michael Freilich  indicates early signs of a developing El Niño across the equatorial Pacific Ocean. The data shows Kelvin waves – which are roughly 2 to 4 inches (5 to 10 centimeters) high at the ocean surface and hundreds of miles wide – moving from west to east along the equator toward the west coast of South America. When they form at the eq...