Vegetation Classification and Mapping Project Report - the USGS

More documents

Recommendations

Info

Figure 5. Tree tops were used as pass points in overlapping images in the heavily forested GRSM. 3546789 351 353 GCP 355.3 355 360 485367 Figure 6. The elevations of ground control points (GCPs) were determined from the 30-m digital elevation model (DEM) using a bilinear interpolation algorithm. 16
Figure 7. A mosaic of orthorectified 1:12,000-scale photographs was created for quality assurance and checking. Terrain features that are well aligned between individual photographs indicate a good overall solution. This is necessary for the rectified vegetation linework of individual photographs to edgematch correctly. Photointerpretation Operations The steps of the photointerpretation process listed in Figure 4 proceeded in parallel with the photogrammetric operations. Overstory vegetation was interpreted from the 1:12,000-scale leafon color infrared aerial photographs. On the other hand, the understory vegetation was interpreted from the 1:40,000-scale (leaf-off) transparencies. Although it might appear desirable to scan the color infrared transparencies at high resolution and undertake the vegetation classification as an on-screen interpretation and digitizing procedure, this has proved to be exceedingly time consuming, cumbersome and expensive compared to more traditional approaches (Welch et al. 1995 and 1999; Rutchey and Vilchek 1999). Moreover, photointerpreters must view the vegetation in stereo and in color within the context of a relatively large area of terrain in order to identify the vegetation communities. This is most easily done using a stereoscope to view the analog air photos so that the vegetation 17
Page 1 and 2: Digital Vegetation Maps for the Gre
Page 3 and 4: Table of Contents Page List of Figu
Page 5 and 6: List of Figures (Continued) Figure
Page 7 and 8: List of Attachments Attachment Atta
Page 9 and 10: and animals in the world. It has be
Page 11 and 12: logged or burned (Walker, 1991). Th
Page 13 and 14: The understory vegetation was mappe
Page 15: Photogrammetric Operations The main
Page 19 and 20: The term “overstory vegetation”
Page 21 and 22: provided in Attachment D, and furth
Page 23 and 24: Figure 11. Hardcopy vegetation maps
Page 25 and 26: to the terrain. Applications of the
Page 27 and 28: Figure 13. Total area (hectares) of
Page 29 and 30: Modeling Applications In addition t
Page 31 and 32: Fuel Class 1 Short Grass Fuel Class
Page 33 and 34: understory type and density, was th
Page 35 and 36: Figure 17. A sample of the fire fue
Page 37 and 38: The fuel class and percent canopy d
Page 39 and 40: interfaced to auxiliary data system
Page 41 and 42: References Albini, F. A., 1976. Est
Page 43 and 44: Moore, H.L.A., 1988. A Roadside Gui
Page 45 and 46: Control Extension and Orthorectific
Page 47 and 48: Figure 2. The vegetation map produc
Page 49 and 50: Table 2. Results of different image
Page 51 and 52: Attachment B Attachment B Vegetatio
Page 53 and 54: Attachment B Sub-Alpine Woodland 6.
Page 55 and 56: Attachment B c. S. Appalachian Cove
Page 57 and 58: Attachment B 10. White Oak-Red Mapl
Page 59 and 60: Attachment B E. Southern Blue Ridge
Page 61 and 62: Attachment B :G Graminoid spp. :Ht
Page 63 and 64: Attachment C Photointerpreters from
Page 65 and 66: Attachment C Our ecologically based
Page 67 and 68:
Attachment C Mesic Oak-Hardwoods (l
Page 69 and 70:
Attachment C Mixed (Virginia-Pitch-
Page 71 and 72:
Attachment C prints for greatest di
Page 73 and 74:
Attachment C the inhospitable smila
Page 75 and 76:
Attachment C An NVCS association (a
Page 77 and 78:
Attachment C only in protected cove
Page 79 and 80:
Attachment C MOr/R-K (CEGL 7299) an
Page 81 and 82:
Attachment C everything”: Fraser
Page 83 and 84:
Attachment C 30. NHx:Bol, Southern
Page 85 and 86:
Attachment C elevation, the hemlock
Page 87 and 88:
Attachment C the surrounding tree c
Page 89 and 90:
Attachment C Tom Govus should be al
Page 91 and 92:
Attachment C Madden, M., 2003. Visu
Page 93 and 94:
Attachment D species and it is beli
Page 95 and 96:
Attachment D Hemlock understory wit
Page 97 and 98:
Attachment D Spruce with heath bald
Page 99 and 100:
Attachment E Attachment E Notes on
Page 101 and 102:
Attachment E Springs, Wear Cove and
Page 103 and 104:
Attachment E number of leaves are n
Page 105 and 106:
Attachment F HxL 1403 4.9 0.0 141.1
Page 107 and 108:
Attachment F R/T 26 2.4 0.4 6.8 62.
Page 109 and 110:
Attachment G Attachment G Summary o
Page 111 and 112:
Attachment G PIsu/Rm 1 11.0 11.0 11
Page 113 and 114:
Attachment G T/PIs/Ri 53 6.6 0.7 31
Page 115 and 116:
Attachment H Vegetation Modeling, A
Page 117 and 118:
Attachment H Department of Agricult
Page 119 and 120:
Attachment H isolated from the over
Page 121:
Attachment H 8
show all

Vegetation Classification and Mapping Project Report - the USGS

Create successful ePaper yourself

Delete template?

Save as template?