Emerge 2004 Orthophotos Comprehensive Index

Comprehensive tile index for the Emerge 2004 orthophoto acquisition. In early August of 2004 Emerge acquired orthophotos in support of the Baltimore Ecosystem Study for four main areas in the vicinity of Baltimore: Baltimore City, Gwynns Falls Watershed, Baisman Run Watershed, and the Jennifer Branch Watershed (including the Cub Hill Watershed and the research tower). The imagery is 3-band color-infrared, and is best viewed by assigning band 1-2-3 to R-G-B. Band radiometry(nm): Band 1 (blue) 510 - 600nm, Band 2 (green) 600-700, Band 3 (NIR) 800 - 900 nm. Pixel size for the imagery is 0.6m. During orthorectification the imagery was resampled using bilinear interpolation. The imagery meets or exceeds National Mapping Accuracy Standards for 1:3,000 scale mapping (3-meter accuracy with 90% confidence...Emerge concludes that the accuracy is probably closer to 2-meter). The following prefixes are used in the naming of the image tiles: 25954 = Baisman Run 25955 = Jennifer Branch 25956 = Baltimore City 25957 = Gwynns Falls Acquisition dates: 25954 = 09 Aug 2004 25955 = 08 Aug 2004 25956 = 08 Aug 2004 25957 = 09 Aug 2004. The following prefixes are used in the naming of the image tiles: 25954 = Baisman Run 25955 = Jennifer Branch 25956 = Baltimore City 25957 = Gwynns Falls Acquisition dates: 25954 = 09 Aug 2004 25955 = 08 Aug 2004 25956 = 08 Aug 2004 25957 = 09 Aug 2004 This is part of a collection of 221 Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase is available online and is considerably large. Upon request, and under certain arrangements, it can be shipped on media, such as a usb hard drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful. This is part of a collection of 221 Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase is available online and is considerably large. Upon request, and under certain arrangements, it can be shipped on media, such as a usb hard drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful.