NTU-國土監測中心

09/11/2023

Google地球網路版加入「台灣百年歷史地圖」圖層方式

Google地球網路版近期針對UI介面有重大改版，同時新增支援「圖塊疊加層」功能，使用者可以自行加入外部的XYZ圖磚（XYZ Tiles）網路服務；中央研究院「台灣百年歷史地圖」系統有提供單一圖層「圖塊疊加層」KML下載，就可以直接匯入Google地球網路版，系統便會加入該圖層，只需網頁瀏覽器便能以3D模式來套疊查看歷史圖資，不需安裝單機版QGIS或Google Earth Pro軟體，使用上相當方便。

https://gis.rchss.sinica.edu.tw/mapclub_20231108/

18/08/2023

地球資源觀測衛星就如同人類的第三隻眼睛，監視著地球變化的一舉一動，隨著科技進步及市場需求，新太空時代的衛星會朝著何種趨勢發展？這又可以幫助人類達到什麼不可能的任務呢？

01/02/2023

NASA's Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC) developed the OpenSARLab service to remove common obstacles that data users may...

13/01/2023

Are you excited to get started with NASA's Surface Water and Ocean Topography (SWOT) data? Get started with SWOT sample data using command line tutorials and other data recipes at NASA's Physical Oceanography Distributed Active Archive Center ( ).

NASA's SWOT mission aims to provide valuable data and information about the world’s oceans and its terrestrial surface water such as lakes, rivers, and wetlands. SWOT was developed jointly by NASA and Centre National D’Etudes Spatiales (CNES), with contributions from the Canadian Space Agency (CSA) and United Kingdom Space Agency (UKSA).

The satellite launched on December 16, 2022 and data is expected to be released to the public no earlier than Fall 2023. PO.DAAC is the NASA archive for the SWOT mission and will be making data available via the NASA Earthdata Cloud (hosted in AWS) with direct download capabilities available.

Check out their SWOT Data Cookbook: https://podaac.github.io/tutorials/quarto_text/SWOT.html

Discover physical oceanography datasets, services, and tools at PO.DAAC: https://podaac.jpl.nasa.gov

10/12/2022

災害是大自然現象的衍生影響，也一直是人與環境共存的重要議題。藉由科技的應用、測量與觀測技術及感測器網路的整合，將能觀察與紀錄地表、水、空氣等數據。如同醫學上追蹤人體脈搏用以輔助診斷，這些災害監測提供了...

01/12/2022

31/05/2022

The Strait of Gibraltar separates the Iberian Peninsula from

On 28 May, 🇪🇺🛰️captured solitons🌊, or gravity waves, moving in an easterly direction 〰️ in its waters

For more information on solitons: 🔗 https://www.eumetsat.int/internal-waves-eastern-strait-gibraltar

30/05/2022

【航空照片VS 正射影像】🛩
【您好!請問有什麼能為您服務的嗎?】🙂
【哩賀!OOO單位欲哇來買航照圖，毋過哇毋知欲都擠款?(翻譯器:您好!OOO單位要我來買航照圖，但是我不知道要哪一種?)】🤔
以上是小編常常與長輩們來電洽詢購圖的對話!☎
簡單來說，只是要觀察地貌或其變化，那航空照片就夠啦；如果需要進一步利用，如坐標定位及面積計算，就必須要正射影像才行。🎞
這樣解釋，您懂了嗎?下次千萬別再買錯囉!😎
本所5月份新增上架了517幅正射影像，拍攝時間為民國110年1月份至110年12月份，分布區域如附圖。🎊
有需要的朋友們，歡迎利用本所「航遙測圖資供應平台」(https://gis.afasi.gov.tw/)進行查詢、瀏覽及申購服務。👏

27/05/2022

In this webinar, we provide an introduction to Harmonized Landsat Sentinel-2 (HLS) data, services, and tools. You will learn how to find resources to work wi...

12/05/2022

NASA EOSDIS webinar to be held on May 19, 2022 to provide an introduction to Harmonized Landsat Sentinel-2 data, services, and tools.

22/04/2022

Google 公司最新發布(2021年04月15日)
Google Earth 網頁專業版最大改版
http://goo.gle/timelapse
https://www.google.com/intl/zh-TW/earth

直接整合了過去37年(1984-2020)來的2400萬幅衛星影像，結合時間軸成為4D的體驗，讓我們直接見證近四十年來地球的變化。

[感想] 如果你仔細看完影片與應用地圖變遷，我們的星球，正在邁向枯竭：大規模砍伐森林資源、建設擴張都市面積、氣候變遷正在發生，而且是緊急事件，沒有任何作為，將會導致濱海大城市沉沒。直接透過這37年衛星影像，你走入了過去到現在的變化，我們想要什麼未來？

內文附有影片介紹：
1)整體介紹影片、2)都市應用、3)生態應用、4)氣候應用

Time flies in Google Earth’s biggest update in years
https://blog.google/products/earth/timelapse-in-google-earth?fbclid=IwAR3rhw-TYf9Ukgn-gq6AVlWcFLILG7zSsqeGl1eavKPOG1fZw_RlMK_wi2s

整體介紹影片：Exploring Timelapse in Google Earth
https://www.youtube.com/watch?v=5W-zPqrGQWA

應用： #都市變遷
Our Cities
https://www.youtube.com/watch?v=v74_mf2usc0

In the last 35 years, the urban population has grown by 2.3billion people. Every week, an estimated three million people are moving to cities. By 2050, 68% of the world’s population is projected to live in urban areas. Cities are responsible for more than 70% of global carbon dioxide emissions. “Our struggle for global sustainability will be won or lost in cities.” Explore our changing world with Timelapse in Google Earth.

Dubai, UAE
Pearl River Delta, China
Las Vegas, USA
Shanghai, China
Singapore

應用： #雨林砍伐
Our Forests
https://www.youtube.com/watch?v=b4eLTYUcj7k

Nearly half of the world’s forests have already been cleared or degraded for human use. Every minute, an area of tropical tree cover the size of 40 football fields is lost. At the current rate, 60% of the Amazon rainforest is projected to disappear by 2050. Explore our changing world with Timelapse in Google Earth.

Nuflo De Chavez, Bolivia
Enright, Oregon, USA
Atsimo-Andrefana, Madagascar
Sara, Bolivia
Mato Grosso, Brazil

應用： #冰河消失
Our Ocean
https://www.youtube.com/watch?v=NHf-xSvpF-Y

The Arctic is warming at twice the rate of the rest of the globe. Today, Greenland is losing ice seven times faster than it was in the 1990s. Sea levels are rising 3.6mm per year, the fastest rate this century. If the current rate of warming continues, sea level rise will put more than 800 million people at risk by 2050. “Sea-level rise may by inevitable, but this should not lead us to inaction.” “The sooner emissions are cut, the greater the reduction of future sea level rise.” Explore our changing world with Timelapse in Google Earth.

Newfoundiand and Labrador, Canada
Columbia Glacier, Alaska, USA
Mylius-Erichsen Land, Greenland
London, United Kingdom
New York, USA
Tokyo, Japan

巫師地理整理

08/03/2022

New research uses 3D lidar profiles of Earth's surface from NASA's Global Ecosystem Dynamics Investigation (GEDI) mission to map where corn is being grown. The research team combined GEDI and ESA (European Space Agency) Sentinel-2 data to map corn-producing farms in the U.S., China, and France with an 83% accuracy. Using this method, researchers can better understand annual harvest prospects in major corn-producing regions.

Read about this work: https://go.nasa.gov/3HEshFd

Image: NASA Earth Observatory images by Lauren Dauphin using data from Di Tommaso, et al.

03/03/2022

日本國土地理院的Web地圖「地理院地図」（ https://maps.gsi.go.jp ）新增各時期航照影像快速切換顯示功能

https://www.gsi.go.jp/johofukyu/johofukyu210322.html