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Alaska has nearly 1 million miles of rivers, but only 10% of them are gauged, or measured.

By #TrackingWorldWater, SWOT will measure the height of surface water from space and help groups like the Alaska Department of Fish and Game better manage salmon spawning and survival.
#NASAEarth


SWOT will allow us to see Alaska’s waters in ways we haven’t before, which is important, because Alaska, being in the Arctic, is also where the U.S. is experiencing the most climate change right now.

More: https://go.nasa.gov/3BtKWmG
#NASAEarth


Earth has about 370,000,000,000,000,000,000 (quintillion) gallons of water, with some sources easier to access and use than others. The water budget tells us where that water is – key information that helps better plan for the future.
#NASAEarth


SWOT, launching Dec. 15, will survey nearly all water on Earth’s surface for the first time. It will measure the height of the world’s ocean, rivers, and lakes, helping scientists track how fresh and saltwater bodies change over time. 5 things to know: https://swot.jpl.nasa.gov/news/74/5-things-to-know-about-how-swot-will-look-at-the-worlds-water/
#NASAEarth


Today at 11am ET (1600 UTC), @nasa Administrator @SenBillNelson and agency leaders will discuss @NASAClimate research and our role as a global leader in understanding how the planet is changing.

How to watch: http://go.nasa.gov/3P92hHi
#NASAEarth


Earth has lost 561 square miles (1,453 square kilometers) of salt marshes in the past 20 years, a new @nasa study using #Landsat data shows.

Degrading marsh habitats releases carbon dioxide – a greenhouse gas – into the atmosphere. https://go.nasa.gov/3UEtIdg
#NASAEarth


Tune into the launch coverage for SWOT ⤵️
#NASAEarth


50 years after Apollo 17, other cameras in space have captured stunning, distant views of our home. Take a look: https://earthobservatory.nasa.gov/collection/1658/earth-from-afar
#NASAEarth


Almost all marine life depends on phytoplankton, tiny plant-like organisms that use chlorophyll to photosynthesize. Scientists track phytoplankton by measuring the concentration of chlorophyll in the water, which @nasa satellites can detect from space.

https://go.nasa.gov/3Y1sfk4
#NASAEarth


Lots of chlorophyll in the water can indicate a phytoplankton bloom, swirls of blue and green in the ocean that satellites can see from space.

The color of the swirls tells scientists about the plankton in the bloom and nutrient cycling in the ocean.
#NASAEarth


However, NASA’s existing satellites have some limitations to what they can see. The @nasaocean PACE satellite, slated to launch in January 2024, is hyperspectral, meaning it will see the ocean in even more hues.

More on PACE: https://go.nasa.gov/3VRcfzc
#NASAEarth


The world’s largest active volcano, Mauna Loa, is still erupting.

The @nasa/@USGS Landsat 9 satellite captured this image on Dec. 2. Infrared data from #Landsat’s OLI-2, which detects heat, is overlaid in red, indicating the presence of lava.

🌋: https://go.nasa.gov/3iEuU2Y
#NASAEarth


We are all connected by water. As we get closer to launching SWOT, we’re focusing on #TrackingWorldWater and want to hear from you! 🌊

Share a photo, video, or questions about the mission and we might share it on the launch broadcast. Submit today ➡️ https://go.nasa.gov/3usJ368
#NASAEarth


An aurora recently dipped south of the Arctic Circle and put on a show over mainland Nunavut and Hudson Bay.

The nighttime light of the aurora was detected by the @noaa @nasa Suomi NPP satellite. https://go.nasa.gov/3OTHEik
#NASAEarth


Under the sea (ice) 🌊 🧊

Floating plant-like organisms called phytoplankton may be abundant underneath Antarctic sea ice, according to a new study using underwater instruments and the @NASA_Ice ICESat-2 satellite. 🛰️

Full story: https://go.nasa.gov/3OWnkwH
#NASAEarth


The team used data from Argo floats, underwater instruments that drift and bob with ocean currents.

These devices measure chlorophyll-a and particulate carbon in the water – both factors that indicate phytoplankton are present.
#NASAEarth


Ice height data from @nasa’s ICESat-2 satellite and ice-cover models allowed the team to map where and how much light was penetrating through thin spots and openings in Antarctic sea ice, and how the ice moved over time.

Learn more: https://go.nasa.gov/3OWnkwH
#NASAEarth


Mauna Loa is erupting for the first time in 4 decades, with lava flows reaching 100-200 feet in some cases.

As the volcano began erupting Nov. 27, the @nasa/@NOAA Suomi NPP satellite captured nighttime imagery of the lava’s intensely glowing light & heat. http://go.nasa.gov/3XDS6hX
#NASAEarth


As the volcano erupts, Mauna Loa is emitting sulfur dioxide (SO2), a pungent gas that reacts with oxygen and water to form a gray volcanic haze called vog.

This map shows where the @esa Sentinel-5P satellite detected sulfur dioxide with its TROPOMI sensor.
#NASAEarth


Yesterday, NASA’s uncrewed Orion spacecraft reached its max distance from Earth — 268,563 miles from Earth!

Orion will continue in its distant retrograde orbit for a few more days before swinging by the Moon again on its way back to Earth. 🌏👋🛰🌒
http://blogs.nasa.gov/artemis/
#NASAEarth


Orion has many cameras that it uses to capture gorgeous imagery of itself as well as Earth and the Moon at different phases and distances.

Images from its optical navigation camera help establish Orion’s position in space, a method that could be useful for future missions.
#NASAEarth


NASA is canceling development of its GeoCarb mission to pursue other options to measure & observe greenhouse gases that were not previously available, like the EMIT instrument on the @Space_Station & the upcoming Earth System Observatory. https://go.nasa.gov/3immX2r
#NASAEarth


The southeastern shore of the Hudson Bay forms a near perfectly curved shoreline.

Called the Nastapoka Arc, this curved shoreline has prompted an ongoing debate over its formation.

Read more about this geologic puzzle: https://go.nasa.gov/3XS8DPx 🪨 🧩
#NASAEarth


The wetlands of Adair Bay mark the transition between the Great Altar Desert in northwestern Mexico and the Gulf of California.

In this @Space_Station astronaut photo, mangroves and other salt-tolerant plants appear green and blue waterways snake through gray mudflats.
#NASAEarth


We’re only 14 days away from launching SWOT – a new satellite that will track water on nearly 90% of Earth’s surface! 🛰️ 💧

Tag your questions with #TrackingWorldWater by Dec. 5, and they might be answered during our live launch broadcast. https://go.nasa.gov/3gI3lVP
#NASAEarth


NASA precipitation data reporting for duty 🫡

The @usairforce meteorology unit is now using precipitation data from @nasa's IMERG algorithm in its operational weather forecasts and advisories. https://go.nasa.gov/3ubC2WU
#NASAEarth


Farms in Turkey's district of Elmalı (which means "apple") grow 12% of the country's apples! 🍎

This photo of the region was taken by the @nasa @usgs #Landsat 8 satellite. 📸 🛰
http://earthobservatory.nasa.gov/images/147125/farming-in-turkeys-mountains
#NASAEarth


Since the best way to enjoy #Thanksgiving pie is a slice of BOTH apple and pumpkin... 👇

Illinois grows the most pumpkins of any U.S. state by acreage and weight of its harvest. This @nasa/@usgs #Landsat 8 image shows a major hub of pumpkin growing and processing. 🎃
#NASAEarth


From space, cranberry bogs look like large red splotches in the surrounding green and brown landscape near Plymouth, Massachusetts. #Landsat
http://earthobservatory.nasa.gov/images/150643/cranberry-bogs-in-plymouth-county
#NASAEarth


Astronauts on the @Space_Station grow vegetables to make space salad. 🧑‍🚀🥗

The ISS also has an instrument called ECOSTRESS that collects thermal data to understand plant stress on Earth! http://www.youtube.com/watch?v=WUEFocgIWoU
#NASAEarth


Almost one third of American potatoes are grown in the Snake River Plain in southern Idaho – aka Idaho’s Potato Belt – shown in this @nasa satellite image.
🥔 http://go.nasa.gov/3EXjLTK
#NASAEarth


What does @nasa have to do with cheese? Corn, soy, alfalfa and other foods for dairy cows all need water to grow.🐄

Some @NASAEarth satellites measure soil moisture or groundwater, helping farmers understand how much water is available for their plants. https://www.youtube.com/watch?v=ujOrbk9mJCY
#NASAEarth


Over millions of years, the Colorado River carved through ancient sedimentary rocks even as tectonic forces caused the entire landmass to rise. https://go.nasa.gov/3Ev4LLf

An astronaut on the @Space_Station took this photograph of the river. 🧑‍🚀 📸
#NASAEarth


It was a bright and dusty day when the Aqua satellite acquired this image of sediment swirling in the Gulf of Alaska. https://go.nasa.gov/3tSAyAQ 🛰️
#NASAEarth


Peek-a-boo, that’s us! 🫣 🌏
#NASAEarth


A month at sea 🛥️ 🌊

Scientists with @nasa's S-MODE mission set sail to study how ocean whirlpools drive the transfer of nutrients and energy between the ocean and atmosphere and, ultimately, help shape Earth’s climate.

Dive deeper on the blog: https://go.nasa.gov/3EMuy2R
#NASAEarth


Before the Strait of Tartary began its seasonal freeze-up, #Landsat 9 acquired this image of the strait’s colorful, dynamic waters. https://go.nasa.gov/3grY8Bg
#NASAEarth

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