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Showing 1 to 8 of 8 for “"Historical aerial photography"”.
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A Vegetation Analysis on Horn Island, Mississippi, ca. 1940 Using Characteristic Dimensions Derived from Historical Aerial Photography
… habitat change over a seventy year period using historical black and white photography from 1940. Using present NAIP imagery from the USDA, habitat structure was estimated by using geo-statistics, and second order statistics, from a co-occurrence matrix, to characterize texture for habitat …
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Textural Analysis of Historical Aerial Photography to Determine Change In Coastal Marsh Extent: Site of the Present-Day Grand Bay National Estuarine Research Reserve (GBNERR), Mississippi, 1955-2014
… loss or gain in marsh area is through the use of aerial image data, which offers synoptic views of the landscape at decadal-scale sampling frequencies. However, a potential problem with older panchromatic, or black-and-white, imagery is the absence of multispectral information that might be used …
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Spatial Patterns on Virginia's Second Highest Peak: Land Cover Dynamics and Tree Mortality in Two Rare Ecosystems
… grass bald across 68 years through analysis of historical aerial photography. In the red spruce-dominated forest, we used a consumer grade unmanned aerial vehicle (UAV) to survey the health of all trees within a 46 ha sample plot. We assessed (dead, dying, healthy) over 9,000 individual trees …
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EFFECTS OF FOREST SUCCESSION ON RAM'S HEAD LADY'S SLIPPER (CYPRIPEDIUM ARIETINUM) POPULATIONS IN THE GRAND SABLE DUNES, MI
… I mapped forest cover expansion at GSD using historical aerial photography (1939-2022) to analyze the effects of forest age on ram’s head densities and distribution. Orchid densities declined the most in the oldest and largest forest islands that established pre-1964 and pre-1939. In contrast, …
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HABITAT USE BY SPRUCE GROUSE IN A FRAGMENTED SYSTEM
… df=2, <em>P</em><0.001)</p> <p>I analyzed historical aerial photography of the Yellow Dog Plains in Marquette County, Michigan, from 1937 to 2011 to determine how land cover change influenced spruce grouse habitat. To predict the likely effect of these changes, I created an index to habitat …
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Towards a Polyalgorithm for Land Use and Land Cover Change Detection
… of Landsat time series in concert with historical aerial photography, is used for validation. The polyalgorithm yields more accurate results than EWMACD and LandTrendR alone, but counterintuitively not better than BFAST alone. This nascent work will be directly useful in land use and …
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Changes in Geomorphic Equilibrium on Furnace Run, Summit County, Ohio
… was to examine and interpret present-day and historical geomorphic conditions on Lower Furnace Run in order to explain changes in stream equilibrium conditions. Equilibrium conditions can be altered by changes in land use and precipitation, and this study hypothesizes that climatically-induced …