Remotely Sensed Data EMP 580 Fall 2015 Dr.

Remotely Sensed Data EMP 580 Fall 2015 Dr.

Remotely Sensed Data EMP 580 Fall 2015 Dr. Jim Graham Materials from Sara Hanna Remotely Sensed Data Remotely Sensed data is: Acquired remotely from the observer This makes it different from field surveys

Acquired by: Satellites Airplanes UAVs/UAS/Drones Automated Stations? Active vs. Passive

Sensors can be active or passive Active sensors send out a signal and measure the returned signal: LiDAR Radar Passive sensors measure energy emitted by another source, usually the sun Most of the data we use (except DEMs) are from passive sensors so well be talking about them from now on

For more information, see GSP 216 Earth Observing Satellites Landsat 8 King Fire True Color Landsat 8 - King Fire False Color (Red Shortwave Infrared, Green NIR, Blue

Visible) Landsat 8 - King Fire False Color (Red Shortwave Infrared, Green Shortwave Infrared, Blue NIR) Landsat 8 King Fire October 5, 2014 Landsat Timeline

Landsat Orbit http://www.youtube.com/watch?v=P-lbujsV a2M Landsat The Landsat satellites have carried six different sensor types Return Beam Vidicon (RBV) Multispectral Scanner (MSS) Thematic Mapper (TM) Enhanced Thematic Mapper (ETM)

Enhanced Thematic Mapper Plus (ETM+) Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) Enhanced Thematic Mapper Plus (ETM+) Enhanced Thematic Mapper Plus (ETM+)

Landsat 7 Band 1 Band 2 Band 3 Band 4 Band 5 Band 6 Band 7 Wavelength

(micrometers) 0.45-0.52 0.52-0.60 0.63-0.69 0.77-0.90 1.55-1.75 10.40-12.50 2.09-2.35 Resolution (meters) 30

30 30 30 30 60 30 Band 8 .52-.90 15

Where to obtain data? USGS EarthExplorer http://earthexplorer.usgs.gov/ USGS Global Visualization Viewer - GLOVIS http://glovis.usgs.gov/ USDA Geospatial Data Gateway http://datagateway.nrcs.usda.gov/ What data products are

available? Landsat Archive MODIS Aerial photos Historical NHAP/NAAP/NAIP

Digital Elevation Models Climate Data Watershed Land Use/ Land Cover Soils File Sizes MODIS Image -11,127,225 pixels (7 bands, 500m resolution) Landsat Panchromatic - 234,404,221 pixels (1 band,15 m resolution)

Landsat Multispectral - 58,532,901 pixels (7 bands, 30m resolution) NAIP Image - 261,532,200 pixels (4 bands, 1 m resolution) What format ? Most data is downloaded in a compressed format Large file sizes Level 1 Data Corrected for radiometric and geometric accuracy GeoTIFF data format Separate file for each band

Commercial SPOT 1986-2014 (1.5 20m) IKONOS 1999 (1 -4 m) Quickbird 2001 (0.60 - 2.4 m) World-View-2 2009 (0.46 1.84m)

WorldView-3 2014 (0.31 3.7 m) Disaster Monitoring Constellation (DMC) 2002-Present Five satellites, 30-40 m in 3-4 bands Electromagnetic Radiation Most remotely sensed data is derived from Electromagnetic Radiation (EMR). This includes:

Visible light Infrared light (heat) X-Rays Radar Etc. To use RS data we need to review some information on EM

Recently Viewed Presentations

  • Vocabulary Unit 10

    Vocabulary Unit 10

    Describe a situation in which the sounds are discordant.What is a synonym for discordant? equivocal. Doubtful. ambiguous. If I say that your paper is due, unequivocally, on Thursday, am I likely to change my mind?Why or why not? ... What...
  • Corporate PPT Template

    Corporate PPT Template

    "I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones …." Linus Torvalds Usenet posting, 1991 Only Linux is Growing Business Landscape Customers require more ROI than their existing investments...
  • 2013 Outlook - CompTIA

    2013 Outlook - CompTIA

    Use a good quality connection. Use a wired Internet connection, rather than wireless. Close any applications you do not need on your computer. Use a PC headset if you have one. Poor connection? Use telephone options instead.
  • Ochrana před úrazem el. proudem v odběrných zařízeních ...

    Ochrana před úrazem el. proudem v odběrných zařízeních ...

    Proč je důležité používat sítě TN-S?. Aby se minimalizovaly elektromagnetické účinky. Podle ČSN 33 2000-4-444 (Ochrana před napěťovým a elektromagnetickým rušením) se sítě TN-C se nesmějí používat v novostavbách, které obsahují nebo u nichž je pravděpodobné, že v budoucnu budou...
  • A

    A

    Polluter Pays Principle. จากปัญหาการผลักภาระการจัดการมลพิษสู่สังคม การกำหนดหลักการนี้ขึ้น เพื่อกำหนดความรับผิด เพื่ออุดช่องว่างของกฎหมายละเมิด
  • Experience with H2 testbeam daq sandro ventura INFN

    Experience with H2 testbeam daq sandro ventura INFN

    Experience with H2 testbeam daq sandro ventura INFN padova
  • Introduction - Maryland

    Introduction - Maryland

    Be familiar with the most appropriate application of ATM, SONET, TDM, ISDN, and other telecommunications technologies. Be able to identify the life-cycle costs associated with ITS telecommunications. Be familiar with the cost analysis tools and techniques used to evaluate ITS...
  • Aging and Disability Services Pressures and Priorities

    Aging and Disability Services Pressures and Priorities

    Establishes a new non-therapy RUG classification and Medicare payment rate (Item Z0150A), which begins the day after the last day of therapy treatment regardless of day selected for ARD. In cases where a resident is discharged from the SNF ....