Remote Sensing in Vegetation Applications Agriculture...
Transcript of Remote Sensing in Vegetation Applications Agriculture...
![Page 1: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/1.jpg)
1
Remote Sensing in Vegetation ApplicationsAgriculture, Forestry, and Ecology
NASA Online Tutorial - Section 3 (http://rst.gsfc.nasa.gov/Front/tofc.html)
• Recognizing Vegetation• The SPOT Satellite; Kenya & Rift Valley of Africa• South West Kansas, U.S.A. and Morocco• The Vegetation Index: Africa and other Scenes• Forest Applications; Amazon Rain Forests; Deforestation• Ecological Damage: Natural and Manmade: Non-
geological Events• Ecological Damage: Natural Geological Events
![Page 2: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/2.jpg)
2
Recognizing Vegetation in RS Imagery
• solar radiation• climate factors• availability of chemical nutrients and
water within the host medium
Interactions with Solar Radiation
• Chlorophyll• Spongy mesophyll• Water content• Leaf maturity• Leaf structure
– Broad/needle leaf• Canopy structure (LAI)• Stress
![Page 3: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/3.jpg)
3
CIR
![Page 4: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/4.jpg)
4
Soil Background
Phenology
![Page 5: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/5.jpg)
5
What are the major advantages and disadvantages of Landsat compared with SPOT?
Which is more important, spatial or spectral resolution?
SPOT TM
AVIRIS
![Page 6: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/6.jpg)
6
Ghard plains in western Morocco
March, 1986 May, 1986
Band Ratioing
• Use the same band from different dates• Use different bands from the same date
![Page 7: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/7.jpg)
7
Multi-band, multi-date classification
TM
AAHIS Hyperspectral
Vegetation Index
![Page 8: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/8.jpg)
8
Change Detection
TM Images of Port Renfro on Vancouver Island in BC
MODIS
![Page 9: Remote Sensing in Vegetation Applications Agriculture ...web.pdx.edu/~jduh/courses/geog482s09/Week2.pdfRecognizing Vegetation in RS Imagery • solar radiation • climate factors](https://reader034.fdocuments.us/reader034/viewer/2022042216/5ebf9bb3bcd87b2ee62c79a7/html5/thumbnails/9.jpg)
9
What were the drivers of land cover change?
• Developing of cotton farming owing to abundance of water from damming in southern Turkey
Applications
• Environmental monitoring– Forest fires– Hurricane/tornado/flood damage– Volcano eruption/tectonic movement– Land-use/cover change