GCOM-W1,Kompsat-3,SDS-4,Houryuu-2=H-2A 202-17.05.12 20:39ЛМВ

Автор Salo, 19.01.2012 23:00:02

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June 6, 2012 Updated

SDS-4 received Alarm Indication Signals (AIS) from ships
ЦитироватьThe AIS receiver aboard the Small Demonstration Satellite-4 (SDS-4) launched by the H-IIA Launch Vehicle on May 18 was confirmed to receive alarm indication signals (AIS) from ships cruising around Japan. The SDS-4 was launched as a secondary payload with the main payload, the Global Change Observation Mission 1st- Water "SHIZUKU".
We will continue our engineering verification of the satellite AIS receiver by receiving AIS not only from Japan's adjoining seas but also in other waters. In addition, we will cooperate with the Japan Coast Guard, the Kanto Regional Development Bureau, and the National Institute for Land and Infrastructure Management to study satellite AIS data applications.

Image: AIS signal acquisition image by Space-based AIS Experiment (SPAISE)

http://www.jaxa.jp/countdown/f21/index_e.html
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Salo

#61
http://www.jaxa.jp/press/2012/07/20120702_shizuku_e.html
ЦитироватьGlobal Change Observation Mission 1st - Water 'SHIZUKU' (GCOM-W1) Ins erted in to A-Train Orbit

July 2, 2012 (JST)

Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) confirmed that the Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1) was ins erted in to a planned position on the A-Train orbit as a result of orbit control performed on June 29, 2012. The SHIZUKU was launched from the Tanegashima Space Center at 1:39 a.m. on May 18, 2012 (Japan Standard Time).
The SHIZUKU is flying in front of the Aqua satellite, thus it takes the most front position in the A-Train until another National Aeronautics and Space Administration (NASA) satellite, OCO-2 (USA) joins the constellation.
We have received a welcome message from Dr. Michael Freilich, Earth Science Division Director, of the NASA, as follows: "We are pleased to welcome JAXA and SHIZUKU as a member of the international A-Train constellation. The merging and sharing of data from multiple A-Train satellites has already led to significant advances in atmospheric science, and the addition of the Advanced Microwave Scanning Radiometer 2 (AMSR2) dataset will be an important extension of the A-Train's scientific capabilities."
JAXA will increase the rotation speed of the AMSR2 aboard the SHIZUKU from the lower rotation mode (11 rpm) to the regular observation mode of 40 rpm to verify its observation performance.


(C)NASA

Outline of A-Train (The Afternoon Constellation)
The Afternoon Constellation, or the "A-Train", is an Earth observation satellite constellation run by NASA, and consists of multiple satellites orbiting the Earth in close proximity at an altitude of about 700km, crossing the equator at around 1:30 p.m. local mean solar time. This system allows satellites from various countries to cooperate in earth observations. Currently, with the A-train, the following satellites are participating: Aqua (NASA, U.S.A.), CloudSat (NASA, U.S.A), CALIPSO (NASA, U.S.A./ CNES, France), Aura (NASA, U.S.A.) and Japan has participated in the system for the first time with the SHIZUKU.

Special Features of the A-Train
For Earth observation, it is very efficient to perform observations by measuring the same one location with various sensors at the same time. With various satellites lining up on the almost same orbit, the A-Train enables us to observe the same location on the Earth by multiple satellites around the same time (approximately within 10 minutes.) The position of each satellite is strictly controlled; therefore, a new comer has to be injected into a pre-determined location that does not interfere with other already-flying members. The SHIZUKU entered the A-Train orbit successfully by utilizing JAXA's rendezvous technology. It is the first experience for JAXA to operate a satellite in the constellation flying on the almost same orbit.
"Были когда-то и мы рысаками!!!"

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http://www.jaxa.jp/countdown/f21/live/missionphoto_e.html

July 4, 2012 Updated
SHIZUKU onboard sensor (AMSR2) acquired observation data!
ЦитироватьSHIZUKU onboard sensor (AMSR2) acquired observation data! JAXA acquired observation data on the Earth from the Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1). The SHIZUKU was launched on May 18, 2012 (Japan Standard Time) from the Tanegashima Space Center and started regular observations by the onboard sensor, Advanced Microwave Scanning Radiometer 2 (AMSR2,) on July 3 after entering into the A-train orbit on June 29. The data was acquired by the AMSR2. We will continue the initial functional verification, then confirm data accuracy and perform initial calibration and inspection operations including data correction.
We would like to thank all of you who support the launch of the SHIZUKU through this special site. Updated information will be posted on the SHIZUKU project page.
http://www.jaxa.jp/countdown/f21/index_e.html

SHIZUKU Observation Data Acquired by AMSR2

July 4, 2012 (JST)

Japan Aerospace Exploration Agency (JAXA)

ЦитироватьThe Japan Aerospace Exploration Agency (JAXA) has released some observation images on the Earth acquired by the Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1). The SHIZUKU was launched from the Tanegashima Space Center at 1:39 a.m. on May 18, 2012 (Japan Standard Time) and entered into the A-train orbit on June 29, then has started regular observations since July 3, after increasing the antenna rotation of the onboard Advanced Microwave Scanning Radiometer 2 (AMSR2) to 40 rpm.

Figure 1 is a one-full-day observation image of the Earth by the AMSR2 aboard the SHIZUKU from 9:00 a.m. on July 3 (JST) to July 4. In this image, whitish-yellow color parts indicate areas with heavy rain or sea ice, light blue color areas are with little water vapor in the atmosphere or thin clouds, the dark blue color sections are areas with more water vapor in the atmosphere or thicker clouds, and the black color parts are areas that were not observed.



[Figure 1]

Figure 2 is a close-up view around Japan cut out from Figure 1. The SHIZUKU flew over Japan around 1:00 p.m. on July 3 (JST). At that time, a rain front remained over Japan, and the image shows whitish-yellow color parts, which indicate areas with heavy rain, over wide areas of the eastern part of Shikoku Island, and the Kinki and Tokai regions. Also, there was a low pressure system over the sea on the east of Japan, and the whirly pattern in light to dark blue colors corresponds to the distribution of water vapor and clouds in the atmosphere.



[Figure 2]

Figure 3 shows the distribution of sea ice concentration during July 3-4, 2012 (JST). Since the SHIZUKU flies over the Polar Regions many times (every 100 minutes) in a day, the entire area of the Arctic Ocean can be observed daily. In the image, white indicates areas covered by ocean ice, blue is sea areas, gray is land, and black areas were not observed. The Arctic sea routes are drawing a lot of attention in recent years. Through our observations we can see that we have already lost some sea ice in the ocean on both the Northeast Passage along the Russian Arctic coast and the Northwest Passage on the Canadian and Alaskan coasts.



Please click the following URL for high resolution images.
http://www.jaxa.jp/countdown/f21/live/missionphoto_e.html


We will continue the initial functional verification (for about three months after launch,) then confirm data accuracy by comparing it with observation data acquired on land, and perform initial calibration and inspection operations including data correction.
http://www.jaxa.jp/press/2012/07/20120704_shizuku_e.html
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Global Change Observation Mission 1st – Water
"SHIZUKU" (GCOM-W1)
Regular Observation Operations

August 10, 2012 (JST)

Japan Aerospace Exploration Agency (JAXA)

ЦитироватьThe Japan Aerospace Exploration Agency (JAXA) completed the initial functional verification of the Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1) and has moved to the regular observation operation today as scheduled. The SHIZUKU was launched from the Tanegashima Space Center on May 18, 2012.
We will first perform the initial calibration and checkout during which acquired data will be compared with observation data on the ground for confirming data accuracy and make some data correction. Our observation results will be released through press releases and our website.

Typhoon No.11 "HAIKUI" observed by SHIZUKU



Figure is rainfall image of the Typhoon No.11 "HAIKUI" approaching the east coast of China, observed by the SHIZUKU when it flew over Japan around 2:30 a.m. on August 7, 2012 (JST). Blue to green color indicates weak rainfall, and yellow to red color indicates heavy rainfall.
Background grey scale color is cloud image observed by the geostationary satellite MTSAT. Existence of the eye of the typhoon is well captured by the microwave radiometer aboard the SHIZUKU, which is not clearly seen by cloud image.

*Please click the following URL for high resolution images.
http://www.satnavi.jaxa.jp/e/news/gcomw1-120810_e.html
http://www.jaxa.jp/press/2012/08/20120810_shizuku_e.html
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Анализ данных по наблюдению льдов в Арктике - льда меньше всего (за всю историю наблюдения)

Arctic Sea Ice Observation Data Analysis Results
- Ice extent became smallest in observation history -

August 25, 2012 (JST)

Japan Aerospace Exploration Agency (JAXA)

ЦитироватьThe Japan Aerospace Exploration Agency (JAXA) has been observing the Earth by the Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1) since July 3, 2012 (Japan Standard Time.) As a result of our analysis on sea ice data measured by the onboard microwave scanning radiometer, we found that the sea ice extent in the Arctic Ocean has become the smallest in observation history. The extent on August 24 (JST) was 4.21 million square kilometers, and that fell below the smallest record of 4.25 million square kilometers marked in 2007 in satellite observation history.
According to our observations, the sea ice extent shrunk to the second smallest in September 2011, and, after that, satellite observation images confirmed that some parts of multi-year ice (which had survived one or several summer and become thick) had flowed into the Atlantic Ocean during winter to spring. In the spring of 2012, we confirmed through satellite image analysis that about a half of the Arctic Ocean was broadly covered by a thin layer of one-year-old ice (which was formed in or after the last summer) thus we estimate that sea ice is getting thinner due to recent temperature increase in the Arctic Ocean.
Arctic sea ice usually becomes smallest in mid to late September; therefore, melting will continue till then. JAXA keeps monitoring the sea ice in the Arctic Ocean by the SHIZUKU to report the latest status via press releases and on our website.


Sea ice concentration distribution



Sep. 24, 2007
Aqua/AMSR-E




Aug. 24, 2012
SHIZUKU/AMSR2 (Under verification)




красная линия устремилась вниз

For images of the Arctic sea ice, please refer to the following website
Earth Observation Research Center(Seen from Space)
http://www.eorc.jaxa.jp/en/imgdata/topics/2012/tp120825.html
*Downloading images published on the website is free. To use the images, please place a credit following the conditions stipulated on the "Using JAXA images" page. Please indicate "(C) Japan Aerospace Exploration Agency (JAXA)", "(C) JAXA" or "Courtesy of JAXA" unless otherwise noted.

[Reference URLs]
Arctic Sea-ice Monitor
Distribution images of Arctic sea ice concentration and sea ice area information are updated everyday and provided to the public on the Arctic Sea-Ice Monitor website using the IARC-JAXA information system (IJIS) set up at the International Arctic Research Center (IARC), University of Alaska, by JAXA.
http://www.ijis.iarc.uaf.edu/cgi-bin/seaice-monitor.cgi?lang=e

Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1)
http://www.satnavi.jaxa.jp/project/gcom_w1/index.html
http://www.jaxa.jp/press/2012/08/20120825_arctic_sea_e.html
Go MSL!

Salo

"Были когда-то и мы рысаками!!!"

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GCOM W1 (38337 / 12025A) до сих пор живой