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6/02/2012

被災地の上空写真を一刻も早く人々の手に(1) – 東日本大震災と情報、インターネット、Google

東日本大震災と情報、インターネット、Google

被災地の上空写真を一刻も早く人々の手に(1)


震災直後、被災地に家族や知人のいる人々は、焦燥に駆られた。津波はどこまで及んだのか? 家は流されていないか? Google は、人工衛星からの写真を提供することで人々の不安を少しでも和らげようとした。
2012 年 6 月 1 日掲載

衛星写真に記録された仙台空港の復興


Google Earth を起動し、時計のマークをクリックすると時間を巻き戻せるスライダが現れる。


Google Earth で最新状況を伝える

Picasa ウェブアルバム上で公開された衛星写真。



Google マップのマイマップから衛星写真を呼び出す

河合は Google マップのマイマップ機能を使って地図から該当する衛星写真を呼び出せるようにした。



Read More 続きを読む >> 被災地の上空写真を一刻も早く人々の手に(1) – 東日本大震災と情報、インターネット、Google


11/24/2011

福布斯-土壤 Phobos Grunt (Фобос-Грунт) - Real Time Tracking

Click image or URL to see Phobos Grunt current predictions - position : 

Google Sat Track (GST)
Visual SAT-Flare Tracker Online



Phobos-Grunt probe reentry scheduled for January 15





via: GoogleSatTrack (GST)Visual SAT-Flare Tracker OnlinePhobos-Grunt probe reentry scheduled for January 15俄羅斯失敗之火星任務Phobos-Grunt太空船預定於1月16日重返地球大氣

11/07/2011

Google地圖-即時衛星影像(預測版) / Google Maps Real-Time Satellite View

Gidi Vigo 利用Flash做了一個有趣的預測版 Google 地圖-即時衛星影像(如果會上線的話),請點擊以下圖片來體驗一下。

Gidi Vigo has created a fun little Flash movie that previews what Google Maps live satellite view will look like. Click on the picture to view animation.


Moving Maps



Google Earth live?





via: Google Maps Real-Time Satellite ViewMoving MapsGoogle Earth live?

10/26/2011

土耳其7.2級強震 / Powerful earthquake strikes Turkey

土耳其東南部與伊朗接壤的凡城省23日發生黎克特制7.2級強震此次地震為土耳其12年來最強,震源深度僅10公里,屬淺層地震。土耳其位於歐亞板塊震帶,此地震帶近年地殼運動甚為活躍。地震發生於當地時間23日13時41分,震央位於塔班里村(Tabanli),靠近伊朗邊境。
美國地質調查局稱,地震震級為7.3級。當天晚些時候,土耳其方面將震級更正為7.2級。
除了與時間賽跑,營救受困人員外,當局目前最大的隱憂是,由於凡城位於土耳其第一大湖「凡湖」東岸,一旦大地震導致凡湖移位,大量湖水恐將灌入鄰近區域,使災情更加一發不可收拾。
土耳其位於歐亞板塊地震帶,是全球三大地震帶之一。地震主因是印度洋在印尼地區隱沒,印度半島向北與亞洲大陸發生碰撞,以及非洲大陸與歐亞大陸碰撞所造成。


The U.S. Geological Survey initially reported the quake had a magnitude of 7.3, then revised it down to 7.2.
Turkey is a tectonically active country that experiences frequent destructive earthquakes. On a broad scale, the seismtectonics of the region near the October 23, 2011 earthquake are controlled by the collision of the Arabian Plate and Eurasian plates; at the latitude of this event, the Arabian plate converges with Eurasia in a northerly direction at a rate of approximately 24 mm/yr. West of the October 23, 2011, earthquake tectonics are dominated by strike-slip faulting on the East (in southern Turkey) and North (in northern Turkey) Anatolian fault zones. These large, translational fault systems extend across much of central and western Turkey and accommodate the western motion of the Anatolian block as it is being squeezed by the converging Arabian and Eurasian plates.

Read alsoUnderstanding the 7.2 magnitude earthquake in East Turkey (October 23, 2011)

Read also New Insights into the October 2011 Van (Turkey) Earthquake – detailed analysis by the CEDIM Forensic Earthquake Analysis Group


Google Crisis Response : 2011 Turkey Eathquake, include Person Finder, Resources, Important Telephone Numbers, Maps and satellite imagery, News and Updates.

社群媒體地圖 / ESRI Social Media Map

Turkey Quake Map: Click to see animation

Click to see more Photos: Powerful earthquake strikes Turkey
7.2 Earthquake In Eastern Turkey 10-23-2011

CCTV shows moment when earthquake

Aerial of earthquake-hit Turkey shows full extent of damage

via: Earthquake-report, 星島日報

10/20/2011

德國衛星ROSAT將墜落地球 / German scientists say 3-tonne satellite will fall to Earth 'from Friday this week'


上月底失控墜入地球的美國「高層大氣研究衛星」(UARS)引起一場虛驚,現在又有德國「侖琴衛星」(ROSAT)將於本月廿一日到廿五日之間,在失控狀態中重返大氣層,最有可能是廿二或廿三日墜落,但確切的時間和落點目前仍無法判定。
     總重二.四公噸的侖琴是X射線太空觀測衛星,預料會在重返地球大氣層時解體,約一.七公噸的殘骸可能通過高熱的考驗墜落地表,包括近卅個耐高熱的觀測鏡片和陶瓷組件。
     德國太空總署指出,侖琴衛星殘骸造成傷害的機率大約是二千分之一,略高於UARS的三千二百分之一,但地球人口約七十億,所以任何人「中獎」的機率為十四兆分之一。UARS在九月廿四日墜入南太平洋杳無人跡的海域。
     侖琴衛星的軌道從北緯五十三度延伸到南緯五十三度,這意味殘骸可能墜落在加拿大到南美洲之間的任何地點,確切時間和落點大約要到殘骸衝擊地表前兩小時才能判定。

點擊圖片可即時看到 ROSAT 衛星目前預測軌道位置。
German scientists say 3-tonne satellite will fall to Earth 'from Friday this week'
  • Fragments 'could hit in 50-mile-wide track' along path
  • Could hit anywhere from 53 degrees north and 53 south - including U.S. and UK
  • 1 in 2000 chance it will hit someone
  • Satellite will hit between October 21st and 24th

From Friday this week a three-tonne satellite is set to fall to Earth, the German Aerospace Agency DLR warned today.

The ROSAT satellite will re-enter between October 21st and 24th, scientists predict, and could strike anywhere on Earth between 53 degrees north and 53 degrees south - an area stretching from as far north as the UK to as far south as the Falkland Islands.

The agency calculates that there is a 1 in 2000 chance it will hit someone. 

Fragments - including pieces of a heat-resistant mirror weighing 880lb - could hit anywhere within an 50 mile-wide path along the satellite's track.

10/18/2011

日本輻射地圖 / Japanese Radiation Levels on Google Maps

Safecast 於日本311強震後一週即建立起靜態及移動式監測網,目前已自政府及其他來源收集超過75萬點位監測資料並呈現在Google 地圖上,提供局部均值方塊圖(點擊Explore these readings 可看到詳細點位資料)及監測收集路線上所有點位輻射值並以顏色來區分不同強度。

Safecast was created one week after this year's Japanese earthquake in order to build a radiation sensor network of static and mobile sensors around Japan. So far Safecast has collected over 750,000 data points which they have made accessible through a number of useful Google Maps. The Safecast Map depicts a heat map of the radiation readings. It is possible to select individual squares on the map and view the average readings. Safecast have been driving across Japan in order to take radiation level readings. The data form each trip can be viewed on its own Google Map. The Safecast trips maps can be searched by location. In addition Safecast are aggregating radiation data from government and other sources. This data can be viewed on the Aggregate Map From All Sources.





Satellite Photos of Japan, Before and After the Quake and Tsunami by New York Times

Japan Earthquake: before and after by ABC News


2011年日本地震分佈圖  Japan earthquakes 2011 Visualization map



放射線モニタリング情報
Monitoring information of environmental radioactivity level

リアルタイム線量測定システム




via: Japanese Radiation Levels on Google MapsSafecastSatellite Photos of Japan, Before and After the Quake and TsunamiJapan Earthquake: before and after日本各縣輻射量地圖 日本災前後衛星對比圖2011年の日本の地震 分布図

10/17/2011

泰國洪水災害地圖 / Google Crisis Response - Thailand Floods 2011


Thailand Floods 2011

泰國遭遇50年來最大洪水災害。超過三分之二的國土都被淹沒,淹沒了稻田及關閉上百家工廠,而超過90萬家庭和企業都受到影響,並已有數百人不幸喪生。泰國救災工作目前集中在提供流離失所者必要的食品、清潔水和棲身之所和恢復受損的基礎設施。Google Crisis Response 設立泰國洪災地圖網站,提供緊急聯絡資訊並於地圖上顯示相關災害範圍、地點及避難所、捐助等資訊以利防救災。

Thailand is currently facing its worst flooding in 50 years. Flood waters have swamped more than two-thirds of the country, submerging rice fields and shutting down hundreds of factories while over 900,000 families and businesses have been impacted and hundreds of lives have been tragically lost. National relief efforts are now focused on providing essential food, clean water and shelter to displaced people and restoring damaged infrastructure to the Kingdom of Smiles.


圖層 Layers:
Severely affected area: Urgent help needed
Flooding Extents
Satellite imagery
Bangkok risk areas and water barriers
Shelters
Parking Areas
Donations
Flood affected areas across Thailand
Flooded Highways Map
more ......

GeoEye Satellite imagery - Google Crisis Response
GeoEye Satellite imagery - Google Crisis Response
Flood affected areas+Risk areas+Flood Extents
Thailand Floods 2011 - Google Crisis Response


Thailand Flood Map by ESRI






USEFUL LINKS:


10/15/2011

佔領華爾街社交(群)媒體地圖 / Occupy Wall Street Social Media Map

ESRI 公司推出一個互動式地圖: Occupy Wall Street Social Media Map ,可即時展現 Youtube, Twitter, Flickr 等社群訊息於地圖上。

View the conversations related to the recent demonstrations in New York and other cities in the US. Use the search and zoom tools to change the map area focus.

 

9/01/2011

GPS new Technology


Trimble® Floodlight™ Satellite Shadow Reduction Technology

August 31st, 2011 by Sanjay Gangal, Article source: Trimble


衛星陰影是在GNSS困難的條件下數據采集團隊想獲得高精度數據所面臨的最大問題。
Tr i m b l e®Floodlight™衛星陰影消除技術就是專門為解決這個問題而開發的方案。當您在城區低地或濃密樹篷下實施測量時,該技術可使您對精度和位置的可用性給出意想不到的改善。

什么是衛星陰影消除?
當在 GNSS 衛星與接收機之間存在障礙物時,會出現衛星陰影,使接收機無法有效地跟蹤衛星。
隨著視線范圍內多顆衛星受到阻擋,使接收機計算精確的位置變得更加困難。在極端條件下,視線范圍內幾乎沒有什么衛星能夠用來計算位置。

FLOODLIGHT技術如何能消減衛星陰影?

Trimble Floodlight 技術能以如下三種方法消減衛星陰影效果:
1. 把 GPS 跟蹤和 GLONASS 跟蹤組合在一起:可使衛星的可用性比單純的GPS方式提高到
60% – 僅對定位而言。
2. 高級跟蹤算法:可提高捕獲信號的速度,并確保穩定地跟蹤信號弱的衛星。較穩定的跟
蹤可給出較平滑的定位數據,減小由于衛星跟蹤不穩定所導致的數據波動。
3. Floodlight 技術用高度限值定位方式減小弱信號或受阻信號的影響:該技術能夠限制弱
信號的影響,允許用較少的衛星進行 3D 定位,并且改善水平和垂直精度。
Floodlight 技術與實時和后處理工作流程兼容。您不需要額外的配置,也不需要返回辦公室
處理或進行質量控制 – 您只需要采集數據。

詳: Floodlight Technology Brief



© 2011,  Trimble Navigation Limited。版權所有。Trimble、地球與三角形組合圖標和Geoexplorer、GPS Pathfinder 是Trimble Navigation Limited在美國和其他國家注冊的商標。Floodlight、GeoXH、GeoXT、TerraSync 和 VRS 是Trimble Navigation Limited 的商標。 所有其他商標都是各擁有者的財產。PN 022501-264A-CHi (04/11)