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Classification And Mapping Of Arctic Vegetation
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Book Synopsis Classification and Mapping of Arctic Vegetation by : Fred J. A. Daniels
Download or read book Classification and Mapping of Arctic Vegetation written by Fred J. A. Daniels and published by . This book was released on 2005 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Classification and Mapping of Arctic Vegetation by :
Download or read book Classification and Mapping of Arctic Vegetation written by and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Classification and Mapping of Arctic Vegetation by : Fred J. A. Daniëls
Download or read book Classification and Mapping of Arctic Vegetation written by Fred J. A. Daniëls and published by . This book was released on 2005 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hybrid Image Classification Technique for Land-cover Mapping in the Arctic Tundra, North Slope, Alaska by : Debasish Chaudhuri
Download or read book Hybrid Image Classification Technique for Land-cover Mapping in the Arctic Tundra, North Slope, Alaska written by Debasish Chaudhuri and published by . This book was released on 2008 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Remotely sensed image classification techniques are very useful to understand vegetation patterns and species combination in the vast and mostly inaccessible arctic region. Previous researches that were done for mapping of land cover and vegetation in the remote areas of northern Alaska have considerably low accuracies compared to other biomes. The unique arctic tundra environment with short growing season length, cloud cover, low sun angles, snow and ice cover hinders the effectiveness of remote sensing studies. The majority of image classification research done in this area as reported in the literature used traditional unsupervised clustering technique with Landsat MSS data. It was also emphasized by previous researchers that SPOT/HRV-XS data lacked the spectral resolution to identify the small arctic tundra vegetation parcels. Thus, there is a motivation and research need to apply a new classification technique to develop an updated, detailed and accurate vegetation map at a higher spatial resolution i.e. SPOT-5 data. Traditional classification techniques in remotely sensed image interpretation are based on spectral reflectance values with an assumption of the training data being normally distributed. Hence it is difficult to add ancillary data in classification procedures to improve accuracy. The purpose of this dissertation was to develop a hybrid image classification approach that effectively integrates ancillary information into the classification process and combines ISODATA clustering, rule-based classifier and the Multilayer Perceptron (MLP) classifier which uses artificial neural network (ANN). The main goal was to find out the best possible combination or sequence of classifiers for typically classifying tundra type vegetation that yields higher accuracy than the existing classified vegetation map from SPOT data. Unsupervised ISODATA clustering and rule-based classification techniques were combined to produce an intermediate classified map which was used as an input to a Multilayer Perceptron (MLP) classifier. The result from the MLP classifier was compared to the previous classified map and for the pixels where there was a disagreement for the class allocations, the class having a higher kappa value was assigned to the pixel in the final classified map. The results were compared to standard classification techniques: simple unsupervised clustering technique and supervised classification with Feature Analyst. The results indicated higher classification accuracy (75.6%, with kappa value of .6840) for the proposed hybrid classification method than the standard classification techniques: unsupervised clustering technique (68.3%, with kappa value of 0.5904) and supervised classification with Feature Analyst (62.44%, with kappa value of 0.5418). The results were statistically significant at 95% confidence level."--Abstract from author supplied metadata.
Book Synopsis The Vegetation and a Landsat Assisted Land Cover Map of the Barrow Region, Northern Alaska by : Brian Michael Noyle
Download or read book The Vegetation and a Landsat Assisted Land Cover Map of the Barrow Region, Northern Alaska written by Brian Michael Noyle and published by . This book was released on 1999 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Landsat Thematic Mapper (TM) and Multispectral Scanner (MSS) imagery at two different spatial scales were employed during this research effort to provide two medium scale (1:63,360) vegetation maps of the Barrow Region on Alaska's North Slope. Detailed field sampling facilitated a site specific accuracy assessment of the digital classification to provide clues as to the reliability of each map. A comparison of the resultant map products was conducted to assess the effect of the resolution of satellite data on the investigator's ability to accurately interpret vegetation pattern in Arctic tundra. Accuracy assessment of the TM and MSS derived map products indicates that both types of remotely sensed imagery are limited in their ability to accurately represent specific vegetation types at the chosen map scale. The TM instrument, with its improvements in spatial, radiometric, and spectral resolution over the MSS sensor, produced a significantly more accurate vegetation map than that derived from the MSS data. It is concluded that the Landsat derived land cover maps prepared during this investigation provide information on the distribution of general vegetation types across the Barrow Region, but do not provide accurate site-specific vegetation data"--Leaf ii
Book Synopsis classification and mapping of vegetation on a world scale as sponsered by unesco by :
Download or read book classification and mapping of vegetation on a world scale as sponsered by unesco written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vegetation Mapping of the National Petroleum Reserve in Alaska Using Landsat Digital Data by : L. A. Morrissey
Download or read book Vegetation Mapping of the National Petroleum Reserve in Alaska Using Landsat Digital Data written by L. A. Morrissey and published by . This book was released on 1981 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Cover Mapping in the Arctic Through Satellite Remote Sensing by : Julia M. Harvie
Download or read book Surface Cover Mapping in the Arctic Through Satellite Remote Sensing written by Julia M. Harvie and published by . This book was released on 1982 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual which presents a review of satellite data analysis techniques that provide most accurate and cost-effective results in mapping arctic terrain in Canada. Techniques based on visual and digital analysis of remotely sensed data are discussed in 3 sections entitled land cover mapping, vegetation mapping and ecological mapping.
Book Synopsis Vegetation Mapping by : August William Küchler
Download or read book Vegetation Mapping written by August William Küchler and published by . This book was released on 1967 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Second Circumpolar Arctic Vegetation Mapping Workshop, Arendal, Norway, 19-24 May 1996 and the CAVM-North America Workshop, Anchorage, Alaska, US, 14-16 January 1997 by : Donald A. Walker
Download or read book Proceedings of the Second Circumpolar Arctic Vegetation Mapping Workshop, Arendal, Norway, 19-24 May 1996 and the CAVM-North America Workshop, Anchorage, Alaska, US, 14-16 January 1997 written by Donald A. Walker and published by . This book was released on 1997 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecogeographical Classification of Arctic Vegetation by : Tyge Wittrock Boecher
Download or read book Ecogeographical Classification of Arctic Vegetation written by Tyge Wittrock Boecher and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecogeographical classification of arctic vegetation by :
Download or read book Ecogeographical classification of arctic vegetation written by and published by . This book was released on 1977 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecogeographical Classification of Arctic Vegetation Based on Shoots Density Determinations by : Denmark. Kommissionen for videnskabelige undersøgelser i Grønland
Download or read book Ecogeographical Classification of Arctic Vegetation Based on Shoots Density Determinations written by Denmark. Kommissionen for videnskabelige undersøgelser i Grønland and published by . This book was released on 1919 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Existing vegetation classification and mapping technical guide by : David Tart
Download or read book Existing vegetation classification and mapping technical guide written by David Tart and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Existing Vegetation Classification and Mapping Technical Guide by :
Download or read book Existing Vegetation Classification and Mapping Technical Guide written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Decadal Scale Vegetation Maps for the Boreal Forest Surrounding Fairbanks, Alaska by : Hannah E. Huhman
Download or read book Decadal Scale Vegetation Maps for the Boreal Forest Surrounding Fairbanks, Alaska written by Hannah E. Huhman and published by . This book was released on 2018 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vegetation maps of a selected area within the boreal forest surrounding Fairbanks, Alaska, have been generated for the nominal years of 1985, 1995, 2005, and 2015 using Landsat 4 and 5 Thematic Mapper and Landsat 8 Operational Land Imager surface reflectance products at 30 meter spatial resolution using a decision tree classification. The maps include 9 U.S. Geological Survey (USGS) vegetation classes, as well as barren land, open water, and ice/snow classes that are consistent with the classes identified in the 2001 National Land Cover Database (NLCD) map of Alaska generated by the USGS. Classification steps are based on USGS methodology, with refinements for the boreal forest, to ensure further comparison to the 2001 USGS NLCD map for Alaska. The overall weighted accuracies of first order estimates of data quality using cross validation are 93.2%, 88.4%, 93.3%, and 86.9% for the nominal years of 1985, 1995, 2005, and 2015 maps, respectively, compared to 81.8% accuracy for the USGS NLCD 2001 product. This study demonstrates that the spatial and spectral resolution of Landsat data is the best available for mapping the vegetation of Alaska’s boreal forest at 1:50,000 scale. It also shows that the boreal forests surrounding Fairbanks, Alaska have witnessed a decrease in the growth of evergreen forests, an expansion of shrub and an increase in wetland distribution, all of which have been reported as impacts of a warming climate in the Arctic and Sub-arctic.
Book Synopsis International Classification and Mapping of Vegetation by :
Download or read book International Classification and Mapping of Vegetation written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: