Chapter 26 cover Drought: Reading Ch. 26 OSC Website and/or N-G’s Blog for 2011 Drought Summary as...
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Kepler, Galileo and the International Year of Astronomy Pamela Harman, SETI Institute Edna DeVore, Co-I; Alan Gould, Co-I; David Koch, Dept PI. Jan, 2009
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Transcript of Chapter 26 cover Drought: Reading Ch. 26 OSC Website and/or N-G’s Blog for 2011 Drought Summary as...
Chapter 26 cover
Drought: Reading Ch. 26OSC Website and/or N-G’sBlog for 2011 Drought Summary as of October 2011
Most hazardous weather!
Drought is in context of the climatalogical normal.
Different Types:Meteorological, Hydrological, Agricultural, Socio-economic
Figure 26.1Palmer Index
mrryan13777
Texas State Climatologist (Dr. N-G!)http://climatexas.tamu.edu/
Climate Prediction Centerhttp://www.cpc.ncep.noaa.gov/products/MD_index.shtml
Drought Links
Figure 26.2
Normal
Figure 26.3
Normal, Not!
Figure 26.4
Drought Feedbacks:
•Surface Low Suppression•Block of Moisture•Build Pressure Aloft•Radiation Balance Change
The Boundary Layer Depth Feedback Problem(like drought of 2011)
Figure 26.5
Historical Droughts:
On your own reading…
Figure 26.6
Figure 26.7
Figure 26.8
Figure 26.9
Figure 26.10
Figure 26.11
Figure 26.12
Figure 26.13
Figure 26.14
Figure 26.15
Figure 26A
Figure 26B
Table 26.1
TABLE 26.1Categories of Palmer Drought Severity Index
PDSI Range Drought Severity
-4.0 or less extreme drought
-3.9 to -3.0 severe drought
-2.9 to -2.0 moderate drought
-1.9 to +1.9 near normal
+2.0 to +2.9 unusually moist
+3.0 to +3.9 very moist
+4.0 and above extremely moist
