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Hurricane Bud, 12 June 2018 Tropical Storm Aletta, 7 June 2018 Guatemala Fuego Volcano, 5 June 2018 Guatemala Fuego Volcano, 5 June 2018 Rivers of Ice, 18 May 2018 Cyclone Mekunu, 25 May 2018 Kilauea Volcano, 5 June 2018 Kilauea Volcano, 6 June 2018 Nor Nor MiRS NOAA-20/ATMS Temperature at 700mb, 16 January 2018 NOAA-20 OMPS NM First Light Image, 5 January 2018 NOAA-20 OMPS NP First Light Image, 5 January 2018 NOAA-20 CrIS First Light Image, 5 January 2018 NOAA-20 VIIRS TEB First Light Image, 5 January 2018 NOAA-20 VIIRS First Light Image, 13 December 2017 NOAA-20 ATMS First Light Image, 29 November 2017

Hurricane Bud in VIIRS (SNPP and N20)
William Straka (CIMSS)

12-Jun-18 - As of the 3:00am MDT advisory, Hurricane Bud was a Category 4 storm with max sustained winds of 130mph and a central pressure of 948mbar.
Both SNPP and NOAA-20 observed Hurricane Bud from two separate passes at ~2:26am and ~3:16am MDT. The slide show of DNB & I05 imagery from the two passes shows that Bud was moving slightly eastward.

NOAA-20 observes Tropical Storm Aletta
William Straka (CIMSS)

7-Jun-18 - Tropical Storm Aletta is still churning in the eastern Pacific off the coast of Mexico is expected to be a hurricane later today or tomorrow. This morning's 3:10am MDT (0910Z) NOAA-20 pass was off nadir, but provided some excellent shots of the developing storm. This was the first really good shot of NOAA-20's first eastern Pacific storm as well.
As can be seen in the high res IR (375m) I05 BT imagery, one can continue to see the intense convection which is now completely surrounding the circulation. These features could clearly be seen in the Day Night Band imagery (top-left), illuminated by the waning crescent (43% illumination) moon, which was on the eastern horizon. Off the edge of the image there was some moonglint present as well.

SO2 over Guatemala Fuego Volcano
Lawrence E Flynn; Jianguo Niu; OMPS EDR team

5-Jun-18 - Measurements from instruments on both the NOAA-20 and S-NPP satellites can be used to estimate the S02 released into the atmosphere during volcanic events. The slide show of four map images provides estimates of SO2 in the lower troposphere from the Suomi NPP Linear Fit SO2 retrieval algorithm over Central America region covering the Guatemala Fuego volcano from June 2nd to 5th. The first map is the day on June 2 before Fuego eruption. The second (June 3) shows the high SO2 cloud covers the Fuego volcano near north 14 degree latitude, -88 degree longitude. The third (June 4) shows a long distance transportation of SO2 plume, but at the volcano site, no high SO2 cloud can be found. The fourth map shows no more SO2 plumes over the Guatemala Fuego volcano. Regions in the map with red coloring have estimates of over 3 Dobson Units of SO2.

SO2 over Guatemala Fuego Volcano
Lawrence E Flynn; Jianguo Niu; OMPS EDR team

5-Jun-18 - Measurements from instruments on both the NOAA-20 and S-NPP satellites can be used to estimate the S02 released into the atmosphere during volcanic events. The slide show of five map images provides estimates of SO2 in the lower troposphere from the NOAA-20 Linear Fit SO2 retrieval algorithm over Central America region covering the Guatemala Fuego volcano from June 2nd to 5th. The first map is the day on June 2 before Fuego eruption. The second (June 3) shows the high SO2 cloud covers the Fuego volcano near north 14 degree latitude, -88 degree longitude. The third and the fourth are on June 4, coming from two consecutive orbit. The third is previous than the fourth one. This two together consistent with the SNPP same day's map. We could see a long distance transportation SO2 plume on the maps. The fifth map also shows no more SO2 plumes where erupted into the atmosphere. Regions in the map with red coloring have estimates of over 3 Dobson Units of SO2.

Rivers of Ice
Don Hillger; Curtis Seaman

18-May-18 - Yakutsk, the Coldest City on Earth. Rivers near Yakutsk freeze during the winter, ice break-up in spring, and ice-up in fall. It is important to monitor the spring break-up of the ice, since the break up period is often associated with ice jams and flooding.
This animation image of VIIRS Natural Color RGB composite of channels I-1, I-2 and I-3 shows a snake-like section of ice flowing from the Aldan river into the Lena river. The 'ice snake' moved about 59 pixels (22.3 km at 375 m resolution) during the 3 hour, 21 minute duration of the animation.
See VIIRS Imagery blogs for more details.

Cyclone Mekunu
William Straka (CIMSS)

25-May-18 - Mekunu has now been classified as a Extremely Severe Cyclonic Storm. It has intensified with sustained winds of 160‐170 KPH, with gusts to 190 KPH. In addition, the central pressure was ~964hPa. This now puts it as a strong Category 2 storm impacting the Gulf of Aden.
NOAA‐20 made a near nadir overpass at 2205Z on 24 May 2018, with a Waxing Gibbous (75% illumination) providing an excellent view of the convection and closed eye of Extremely Severe Cyclonic Storm Mekunu. The usual features of tropospheric gravity waves, intense convection were seen in the imagery. In addition, the storms hitting the Omani coast as well as the Gulf of Aden can be seen as well.

S-NPP SO2 over Kilauea Hawaii
Lawrence E Flynn; Jianguo Niu; OMPS EDR team

5-Jun-18 - Measurements from instruments on both the NOAA-20 and S-NPP satellites can be used to estimate the S02 released into the atmosphere during the Kilauea Volcanic event. The slide show of images provides estimates of SO2 in the lower troposphere from the Suomi NPP Linear Fit SO2 retrieval algorithm over Kilauea Hawaii from May 1st to June 5th. On the May 3rd, there were two overpasses, one at UTC time 00:10 and the other at 23:51. Regions in the map with red coloring have estimates of over 3 Dobson Units of SO2.

NOAA-20 SO2 over Kilauea Hawaii
Lawrence E Flynn; Jianguo Niu; OMPS EDR team

6-Jun-18 - Measurements from instruments on both the NOAA-20 and S-NPP satellites can be used to estimate the S02 released into the atmosphere during the Kilauea Volcanic event. The slide show of images provides estimates of SO2 in the lower troposphere from the NOAA-20 Linear Fit SO2 retrieval algorithm over Kilauea Hawaii from May 1st to June 6th. On the May 6th, there were two overpasses, one at 00:03UTC and the other at 23:44UTC. Also there were two overpasses on May 11th, one at 00:08UTC, the other 23:50 UTC. Regions in the map with red coloring have estimates of over 3 Dobson Units of SO2.

Nor'easter from NOAA-20
William Straka (CIMSS)

21-Mar-18 - The 4th Nor'easter in 3 weeks is currently impacting the east coast of the US, with a forecast amount of 3-5 inch of snow to fall in DC, causing federal offices in the area to be shut down. As the system is developing off the coast, NOAA-20 (preliminary and non-operational data), provided a near-nadir overpass at about 2:45am EDT this morning. The IR imagery caught the convection out over the Atlantic as well as some tropospheric waves along with some mountain waves flowing over the Catskills as well as the southern part of the Appalachians in eastern Tennessee.

Nor'easter from NOAA-20
William Straka (CIMSS)

21-Mar-18 - The 4th Nor'easter in 3 weeks is currently impacting the east coast of the US, with a forecast amount of 3-5 inch of snow to fall in DC, causing federal offices in the area to be shut down. As the system is developing off the coast, NOAA-20 (preliminary and non-operational data), provided a near-nadir overpass at about 2:45am EDT this morning. From the DNB imagery, some faint mesospheric gravity waves can be seen over the Atlantic propagating roughly to the north. In addition, lightning streaks can be seen near the convection associated with this storm system.

MiRS N20/ATMS Temperature at 700mb
STAR MiRS EDR team

16-Jan-18 - The top image shown is a map of atmospheric temperature at 700 millibars, approximately 3000 meters (10,000 feet), over the globe on January 16, 2018. The bottom two images shown side by side are the 700 mb temperature over North America on both January 16 (left) and January 11 (right), 2018. The most notable feature on January 16 over North America is the contrast between the extremely warm temperatures in northwestern Canada with the extreme cold, associated with a sharp dip in the jet stream over the US Midwest. The difference in temperature between the two features is more than 30 degrees Celsius (54 degrees Fahrenheit). Surface temperature observations confirm this extreme contrast: in Calgary, Alberta, the afternoon high temperature was 45°F on January 16th, whereas just five days earlier the afternoon high was only -15°F. In Nashville, Tennessee the opposite fluctuation occurred: on January 11th the high was a mere 17°F but five days later had reached 69°F. This pattern reversal is indicated in the NOAA-20 imagery, which shows the warmth focused in the eastern US, and sharply colder arctic air moving south into west-central Canada.

NOAA-20 OMPS NM First Light Image
STAR OMPS SDR team

5-Jan-18 - The Ozone Mapping Profiler Suite (OMPS) instrument on the NOAA-20 satellite acquired its first data on January 5, 2018.
This first-light image shows the radiance values for the cloud reflectivity channel on the OMPS Nadir Mapper. The highest radiances are associated with bright cloud tops. The cloud reflectivity channel is one of the five primary channels used to estimate total ozone concentration. The striping pattern is created from the slight differences in the angle of the satellite relative to the incoming energy from the sun.

NOAA-20 OMPS NP First Light Image
STAR OMPS SDR team

5-Jan-18 - The Ozone Mapping Profiler Suite (OMPS) instrument on the NOAA-20 satellite acquired its first data on January 5, 2018.
This first-light image shows the radiance at 307.5nm from the OMPS Nadir Profiler. This measurement is one of the 12 primary channels used to estimate the ozone at various levels in the atmosphere - closer to and farther from Earth's surface. The OMPS Nadir Profiler only makes measurements directly under the satellite's path.

NOAA-20 CrIS First Light Image
STAR CrIS SDR team

5-Jan-18 - Forty-eight days after JPSS-1 (NOAA-20) was launched into Earth orbit, it sent back its first Cross-track Infrared Sounder (CrIS) science data.
This image shows the global brightness temperature distribution at day time in one of the CrIS water vapor channels at 1598.75 cm-1. This channel is sensitive to water vapor amount around 500 hPa, and to mid- to high-level clouds. Dark blue colors in the image represent liquid water and ice clouds. Yellows indicate that the radiation is from the warm Earth's surface, or a dry layer in the middle troposphere. The image captured the blizzard striking the northeast coast of the United State on January 5, 2018.

NOAA-20 VIIRS TEB First Light Image
-- Captured Detailed Thermal Imagery of Bomb Cyclone

5-Jan-18 - Forty-seven days after it was first launched, the NOAA-20 polar-orbiting satellite sent back its first thermal infrared images on January 4, 2018. This VIIRS thermal infrared image shows stunning detail of the powerful 'bomb cyclone' that struck the East Coast of North America on Jan. 2-3, 2018. The powerful winter nor'easter delivered snow and ice, 50 to 80 mph wind gusts, and strong surf from northern Florida to Nova Scotia, Canada. Due to its rapid intensification (the barometric pressure at the center of the storm dropped 59 millibars in 24 hours), the storm ranks among the strongest ever observed along the East Coast.

NOAA-20 VIIRS First Light Image
-- Captured Thomas Fire
STAR VIIRS SDR team

13-Dec-17 - Twenty-five days after JPSS-1 (NOAA-20) was launched into Earth orbit, NOAA-20 sent back its first Visible Infrared Imaging Radiometer Suite (VIIRS) science data on December 13, 2017.
This VIIRS true color image captured the aggressive wildfires across the Southern California region which forced thousands to flee their homes. The fire spanned more than 370 square miles and remains the strongest blaze for firefighters to battle in Ventura and Santa Barbara counties.

NOAA-20 ATMS First Light Image
STAR ATMS SDR team

29-Nov-17 - Eleven days after JPSS-1 (NOAA-20) launched into Earth orbit, the satellite sent back its first Advanced Technology Microwave Sounder (ATMS) science data on November 29, 2017.
This image uses ATMS data to depict the location and abundance of water vapor (as associated with antenna temperatures) in the lower atmosphere, from the surface of the Earth to 5 kilometers altitude. Grey colors depict areas with less water vapor, blue-green and purple colors represent abundant water in all phases in low and middle latitudes. In the polar regions, purple depicts surface snow and ice.

Latest JSTAR Updates

N-20/SNPP Equator Crossing, Credit: VIIRS SDR science team. Detail data available at STAR.

02/19/2018: NOAA-20 VIIRS SDR reached Provisional!
02/19/2018: NOAA-20 VIIRS Imagery EDR reached Provisional!
02/16/2018: NOAA-20 CrIS SDR reached Provisional!
02/01/2018: NOAA-20 VIIRS SDR reached Beta!
02/01/2018: NOAA-20 VIIRS Imagery EDR reached Beta!
01/23/2018: NOAA-20 ATMS SDR reached Provisional!
01/17/2018: NOAA-20 CrIS SDR reached Beta!
01/05/2018: NOAA-20 OMPS SDR (NM & NP) reached Beta!
12/08/2017: NOAA-20 ATMS SDR reached Beta!

NOAA-20 First Light Images :

STAR JPSS 2017 Annual Science Team Meeting. 14-18 August 2017, STAR JPSS successfully held its fourth Annual Science Team Meeting at NCWCP. Scientists from NOAA, NASA, Universities, and industries attended the meeting. (slides to be posted soon)

VIIRS Global Surface Type (GST) annual update The GST-2016 products (spatial resolution: 1km) can be downloaded from following FTP links:

GST-2016: sinusoidal projection
GST-2016: lat/lon projection

For more information please contact Rui Zhang or Xiwu Zhan.

2017 NOAA Satellite Aerosol Product Workshop

STAR JPSS 2016 Annual Science Team Meeting

NOAA-JPSS CPO Technical Interchange Meetings (TIM)

JPSS Life-Cycle Data Reprocessing Workshop

JPSS Enterprise Algorithms Workshop

STAR JPSS Monthly Reports

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