The FORE-SCE model: Land Use Modeling ... - Farm Foundation

More documents

Recommendations

Info

Old Method New (improved?) Method USGS EROS Data Center Generating Change Polygons and FORE-SCE run time Once seed size is determined, a change patch centered on that seed is placed Old method – Region grow function into adjacent pixels of similar (or higher) probability Patches more “organic”, dependent upon probability surface characteristics Problem – Model Run times were 2-3 real days per yearly model iteration New method – Pre-established patch “library” of a limited number of patch configurations Assigned patch size for a seed determines pool of potential patch configurations Underlying probability surface still controls individual pixel placement “Canned” patches with less variability, but: 1992 to 2050 model run (58 iterations) now takes just over 24 hours
Controlling “Clumpiness” of LULC change USGS EROS Data Center Probability surface guides placement of seed pixels for change Some land cover transitions are spread evenly across the landscape, some are more clumped Histogram breakpoints used to control “clumpiness” Ecoregion-by-ecoregion parameterization Highly dependent upon characteristics of individual probability surface Quantitatively determined from Trends data….???
Page 1 and 2: The FORE-SCE model: Land Use Modeli
Page 3 and 4: USGS EROS Data Center Land Cover Tr
Page 5 and 6: Monthly Minimum Temperature Anomaly
Page 7 and 8: Total C Change (Mg C/ha/yr) 2.5 2 1
Page 9 and 10: “The Influence of Historical and
Page 11 and 12: Technical Components Land cover da
Page 13 and 14: Historical Land Cover Reconstructio
Page 15 and 16: Biophysical Parameter Construction
Page 17 and 18: FORE-SCE: Model structure Issues o
Page 19 and 20: 1992 NLCD Climate (DAYMET) NED and
Page 21 and 22: Ancillary Data - Used in Logistic R
Page 23 and 24: Tracking Change through Time - HIST
Page 25 and 26: Controlling Transition Probabilitie
Page 27: Generating Change Polygons TRANSITI
Page 31 and 32: RAMS/LEAF2/GEMTM Modeling RAMS/LEA
Page 33 and 34: 1992 to 2050 Projected Change: Flor
Page 35 and 36: 1992 to 2050 Projected LULC Change:
Page 37 and 38: 1992 Conifer - Percent changed by 2
Page 39 and 40: Red-cockaded Woodpecker - Conifer S
Page 41 and 42: Scenario Comparison -- SW Kansas US
Page 43 and 44: FY2008 development: Northern Great
Page 45 and 46: FY2008 development: Scenarios Corn
Page 47 and 48: FY2008 development: Parcel (field)
Page 49: FY2010 and Beyond USGS plans for n

The FORE-SCE model: Land Use Modeling ... - Farm Foundation

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?