Skip to main content

Christmas to Come Early for Meteorologists

It can be expensive to shop for meteorologists during the holiday season. New instruments and techniques to provide a more accurate forecast are always on the top of our list. Those items carry a pretty hefty price tag. This year Christmas will come early for meteorologists with the launch of a new polar-orbiting satellite, JPSS-1.

Credit: NOAA
You may recall seeing satellite imagery during our forecasts on LEX 18. But did you know data from these satellite are also helping meteorologists provide earlier warnings and more accurate forecasts? Polar-orbiting satellite help us do both.

You may be familiar with the term "geostationary weather satellite." Last year the GOES-16 satellite, a geostationary satellite, was launched and it was a game-changer for monitoring hurricanes, wildfires, lightning, and tornadic thunderstorms. These geostationary weather satellites move with the Earth during it's orbit around the sun and look at one location on Earth.

Meanwhile, polar-orbiting satellites orbit at a lower altitude and don't continuously monitor the same location. These types of satellites orbit from pole to pole, monitoring current weather conditions around the globe. Measurements of the Earth's atmosphere, land, and ocean are taken plus data used in weather forecast is collected.

Credit: UCAR/NASA/NOAA

The Joint Polar Satellite System (JPSS) was developed through a partnership between NASA and NOAA. JPSS-1 is the first in a series of four next-generation, polar-orbiting satellites. NASA said in a press release,

         "the satellite will pass over the equator about 14 times each day, covering the globe twice every 24 hours. As it works, JPSS-1 will gather measurements at atmospheric, terrestrial and oceanic conditions, including sea and land surface temperatures, vegetation, clouds, rainfall, snow and ice cover, fire locations, atmospheric temperature, water vapor and ozone...With these varied observations, JPSS will give environmental experts more accurate warnings in advance of hurricanes, tornadoes and blizzards. During its planned 10-years in orbit, JPSS-1 also will aid in assessing hazards such as droughts, forest fires, poor air quality and harmful coastal waters."

Five advanced instruments will help the JPSS suite monitor the Earth's atmosphere, land and ocean. The Advanced Technology Microwave Sounder (ATMS) and Cross-Track Infrared sound (CrIS) will collect the atmospheric temperature and moisture for operational weather and climate applications. The Clouds and the Earth's Radiant Energy System (CERES) along with the Radiation Budget Instrument will monitor reflected sunlight and thermal radiation emitted by the Earth. The health of the ozone layer and the concentration of ozone in the atmosphere will be monitored by the Ozone Mapping and Profiles Suite (OMPS). And finally, Visible Infrared Imaging Radiometer Suite (VIIRS) will provide visible and infrared imagery.

Credit: NOAA
The launch of JPSS-1 from Vandenberg Air Force Base in California has been delayed due to weather conditions. The team is currently assessing a new launch date. Once JPSS-1 reaches orbit, it will be known as NOAA-20. Three more next-generation, polar-orbiting satellites are set to be launched in the future.

- Meteorologist Jill Szwed


Popular posts from this blog

EF-1 Tornado Confirmed in Taylor County

Saturday's severe weather was nothing to play around with. Strong winds outside of the line of thunderstorms were already causing damage to property, well before the line arrived. When the line arrived, thunderstorm wind gusts, combined with surface wind made for dangerous conditions. The NWS has several confirmed tornadoes across the state. An EF-1 was confirmed in Ohio County, in Beaver Dam. A second was confirmed in Meade County, west of Ekron. Both resulted in one injury each. A third EF-1 tornado was confirmed today in Taylor County . The funnel dropped down for about a minute a few miles north of Campbellsville around 6:00pm Saturday. Estimated winds reach 90-95 mph during the event and left a path 1.4 miles long and 50 yards wide. Damage was primarily to roofs and tree branches in it's path. No injuries were reported. Information on the other touchdowns...

Mountains & Valleys

" What Goes Up, Must Come Down " Whether or not you believe in gravity, the concept of the rise and fall is still the same. In every aspect of life we can apply that there are "ups" and "downs" and they wouldn't be possible without each other. This ties into our forecast in many ways. We're currently in a weather pattern that is known as "meridional." The polar jet stream  which separates the cold, arctic air of the polar latitudes and the warmer, subtropical air in the lower latitudes takes on a high amplitude wave formation. When the jet stream meanders like a snake, the movement of different air masses becomes more apparent and therefore you start getting active weather. Warm air tends to want to move towards the poles, which in turn dislodges cold air to move south. It can do this as the jet stream exhibits troughs and ridges. The clash of these air masses are what causes the "activity." As you've seen wit...

Windy with Possible Strong Storms Saturday

This week's weather is about to get a little more active. We have seen a series of cold fronts track through already, but none have been as strong as the one we are tracking to cross on Saturday. Before the first drop of rain falls or the first gust of wind arrives, we are tracking a warming trend. Temperatures are heading for the upper 50s to near 60 degrees on Friday. We will also get to enjoy some late week sunshine. The bigger changes will hold off until Friday night. Fall, like spring (the other transitional season), is not without it's chances for active weather. It's not unusual for a strong November cold front to carry to potential for gusty or strong storms. Saturday's cold front will be no exception. Like other typical  late-season cold fronts, Saturday's front will not have a bunch of instability, or energy, to build tall clouds and intense storms. However, there will be a decent amount of shear and a strong wind field. That being said - wind wil...