NASA launches two new satellites this year to track the Earth’s oceans


NASA is preparing to launch two new satellites this year to track the Earth’s oceans, and the new satellites will provide more detailed information about sea level rise and other changes in the ocean on Earth, and Jason-CS will be the longest Earth observation mission devoted to the study of emerging oceans, where The spacecraft will provide the most sensitive water level measurements, as it reveals details about the height of the oceans, helping to build nearly 40 years of sea level records.

According to the American “space” website, the NASA mission will use two identical satellites (Sentinel-6A and Sentinel-6B) to continue this work by studying changes in ocean circulation, climate variability such as El Nino and La Nina, and weather patterns, including hurricanes. And storms, plus the height of the oceans.

“Global sea level is the best measure of how humans change climate,” Josh Willis, the mission’s scientist at the NASA’s Jet Propulsion Laboratory in Pasadena, California, said in a statement.

Willis added: “If you think about it, the rise in the global sea level means that 70% of the earth’s surface changes its shape and grows, so the entire planet changes.”

Since the Industrial Revolution, the widespread use of fossil fuels has dumped large quantities of carbon dioxide and other greenhouse gases in the Earth’s atmosphere.

As the water warms, the atmosphere also heats up with ice and glaciers, which contributes to rising sea levels. Over the past 25 years, the rate of ocean level rise has continued to increase.

Sentinel-6 / Jason-CS consists of two spacecraft, Sentinel-6A and Sentinel-6B, and next year Sentinel-6A will launch from Vandenberg Air Force Base in California aboard the SpaceX Falcon 9 missile, where its sister will be launched in 2025.

At an altitude of 800 miles above the planet, the spacecraft will send pulses to the Earth’s surface, and measure the time it takes to return to the satellite, a process that measures the amount of water vapor present along the spacecraft’s path.


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