Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” -...
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Transcript of Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” -...
![Page 1: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/1.jpg)
Ch 13: Deserts & WindsCh 13: Deserts & WindsToday:Today:
![Page 2: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/2.jpg)
““We don’t survive the desert,We don’t survive the desert, we we live live here”here” - Pima Indian- Pima Indian
““We don’t survive the desert,We don’t survive the desert, we we live live here”here” - Pima Indian- Pima Indian
![Page 3: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/3.jpg)
![Page 4: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/4.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
Earth’s dry regionsEarth’s dry regions: 30% of all land
2 climate types of dry regions:
desert desert (arid)
steppe steppe (semi-arid, surrounds deserts)
Question: how much rain do we get in Tempe every year?
![Page 5: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/5.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
What causes deserts?What causes deserts?
air pressureair pressure windwind
Important factors:
Global distribution ofGlobal distribution of
rainfallrainfall evaporationevaporation
Relationship betweenRelationship between
www.weatherchannel.com
![Page 6: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/6.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
![Page 7: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/7.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
Low-latitude desertsLow-latitude deserts
Tropic of Cancer
Tropic of Capricorn
(recall: “latitude” = east-west line on the globe)
Equator: hot air rises to 15-20 km low pressure belt
In contrast….
![Page 8: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/8.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
![Page 9: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/9.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
![Page 10: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/10.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
![Page 11: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/11.jpg)
1) Deserts: where & why1) Deserts: where & whyDeserts & windsDeserts & winds
Middle-latitude desertsMiddle-latitude deserts
exist in rain shadows.
![Page 12: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/12.jpg)
2) Basin and range2) Basin and rangeDeserts & windsDeserts & winds
Basin and rangeBasin and range
mountainous desert landscape
![Page 13: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/13.jpg)
2) Basin and range2) Basin and rangeDeserts & windsDeserts & winds
Basin and rangeBasin and range
mountainous desert landscape
![Page 14: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/14.jpg)
3) Wind erosion/ deposits3) Wind erosion/ depositsDeserts & windsDeserts & winds
Wind erosion: Important in arid environments
Example: Types of sand dunes:
Sand dune shape depends on:
Flat or hilly?How much sand?Winds steady or intermittent?Wind direction constant?Vegetation present?
![Page 15: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/15.jpg)
![Page 16: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/16.jpg)
3) Wind erosion/ deposits3) Wind erosion/ depositsDeserts & windsDeserts & winds
Sand dune formation
![Page 17: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/17.jpg)
3) Wind erosion/ deposits3) Wind erosion/ depositsDeserts & windsDeserts & winds
Desert pavement
![Page 18: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/18.jpg)
3) Wind erosion/ deposits3) Wind erosion/ depositsDeserts & windsDeserts & winds
![Page 19: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/19.jpg)
![Page 20: Ch 13: Deserts & Winds Today:. “We don’t survive the desert, we live here” we live here” - Pima Indian - Pima Indian “We don’t survive the desert, we.](https://reader030.fdocuments.us/reader030/viewer/2022032707/56649e0c5503460f94af4ace/html5/thumbnails/20.jpg)
3) Wind erosion/ deposits3) Wind erosion/ depositsDeserts & windsDeserts & winds
Graded beds
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