Use of Landsat Imagery for Evaluating Land Cover

Use of Landsat Imagery for Evaluating Land Cover
Author: Mark Emil Seidelmann
Publisher:
Total Pages: 258
Release: 2007
Genre: Land use
ISBN:

Abstract: Current and historical land cover / land use information is an important contribution to many urban and watershed planning activities. This information is invaluable for those investigating the relationship between changes in human activity and changes in water quality. Understanding past activities will assist in the planning of future land development. The main objective of this study was to use medium resolution (Landsat) satellite imagery to produce an accurate historical land use / land cover map along the Lake Erie coastline, focusing on areas located in the rural / urban fringe. This is traditionally a difficult task due to the heterogeneous nature of developed areas. A test area was chosen in the Cleveland, Ohio area because this was a good representation of the rural / urban fringe. The satellite imagery was geometrically and radiometrically corrected to minimize errors created by seasonal and atmospheric variations between images. When initial attempts using traditional pixel-based classification techniques failed to create satisfactory land use / land cover results, an object -- based mapping technique was used. To further improve the quality of the resulting land cover maps, an extra layer -- NDVI difference layers of a leaf on and leaf off image -- was used in the classification process. Also, standard deviation values of Landsat image bands for image objects were added to the classification process to increase separation between land cover classes. The final land cover / land use classification map was produced with an 89.8% overall accuracy. Once land cover maps were created for the study area for each time period a change detection analysis was performed. It was found that the total area of high density urban, forest, industrial, water and exurban or rural land cover type stays relatively constant. The suburban and low density urban areas increase from 1974 to 1994. The suburban land area decreases between 1994 and 2004. Between 1974 and 1994 the predominant land cover change in the study area was from agriculture to suburban and low density urban, which explains both the increase in area for low density urban and suburban and the decrease in area for agriculture. Then between 1994 and 2004 a major land cover change was seen from suburban land cover to low density urban. This would explain the decrease in total area for suburban land cover for this time period.

Remote Sensing of Land Use and Land Cover

Remote Sensing of Land Use and Land Cover
Author: Chandra P. Giri
Publisher: CRC Press
Total Pages: 477
Release: 2016-04-19
Genre: Nature
ISBN: 1420070754

Filling the need for a comprehensive book that covers both theory and application, Remote Sensing of Land Use and Land Cover: Principles and Applications provides a synopsis of how remote sensing can be used for land-cover characterization, mapping, and monitoring from the local to the global scale. With contributions by leading scientists from aro

Evaluating Land Cover Types From Landsat TM Using SAGA GIS for Vegetation Mapping Based on ISODATA and K-Means Clustering

Evaluating Land Cover Types From Landsat TM Using SAGA GIS for Vegetation Mapping Based on ISODATA and K-Means Clustering
Author: Polina Lemenkova
Publisher:
Total Pages: 0
Release: 2022
Genre:
ISBN:

The paper presents the cartographic processing of the Landsat TM image by the two unsupervised classification methods of SAGA GIS: ISODATA and K-means clustering. The approaches were tested and compared for land cover type mapping. Vegetation areas were detected and separated from other land cover types in the study area of southwestern Iceland. The number of clusters was set to ten classes. The processing of the satellite image by SAGA GIS was achieved using Imagery Classification tools in the Geoprocessing menu of SAGA GIS. Unsupervised classification performed effectively in the unlabeled pixels for the land cover types using machine learning in GIS. Following an iterative approach of clustering, the pixels were grouped in each step of the algorithm and the clusters were reassigned as centroids. The paper contributes to the technical development of the application of machine learning in cartography by demonstrating the effectiveness of SAGA GIS in remote sensing data processing applied for vegetation and environmental mapping.

Evaluation of Landsat Three Return Beam Vidicon Imagery for Land Cover Mapping and Change Detection

Evaluation of Landsat Three Return Beam Vidicon Imagery for Land Cover Mapping and Change Detection
Author: Valerie A. Milazzo
Publisher:
Total Pages: 25
Release: 1984
Genre: Land use
ISBN:

"A 1972 land use and land cover map derived from aerial photographs was compared with a 1978 Landsat RBV image to delineate areas of change. These changes were then evaluated against a control set of change data, derived from aerial photographs. Findings indicate that RBV imagery is useful in establishing the fact of change and in identifying gross category changes. However, a limited role is seen for Lansat 3 RBV imagery in the overall land use and land cover map inspection process."--Page [1].

Introductory Digital Image Processing

Introductory Digital Image Processing
Author: John R. Jensen
Publisher:
Total Pages: 584
Release: 2005
Genre: Computers
ISBN:

For junior/graduate-level courses in Remote Sensing in Geography, Geology, Forestry, and Biology. This revision of Introductory Digital Image Processing: A Remote Sensing Perspective continues to focus on digital image processing of aircraft- and satellite-derived, remotely sensed data for Earth resource management applications. Extensively illustrated, it explains how to extract biophysical information from remote sensor data for almost all multidisciplinary land-based environmental projects. Part of the Prentice Hall Series Geographic Information Science.

Key Methods in Geography

Key Methods in Geography
Author: Nicholas Clifford
Publisher: SAGE Publications
Total Pages: 569
Release: 2010-05-30
Genre: Science
ISBN: 1412935091

"Its range is far broader than the majority of methods texts, being concerned with both human and physical geography... Given the seriousness with which Key Methods in Geography approaches all aspects of research, it will continue to find wide favour among undergraduate geographers." - Times Higher Education Textbook Guide "All geographers, whatever their interest, need to do research. This book will help them get started in the best possible way, with thoughtful advice on everything from project design, through choice of methods, to data analysis and presentation. The editors have assembled an impressive array of authors, all experts in their chosen field." - Tim Burt, University of Durham "Excellent book. Valuable teaching aid. Well written and covers a wide range of methods thoroughly." - Sue Rodway-Dyer, Exeter University "This is an excellent book and deals with a number of topics (which I teach) outside of the tutorial module where it is a recommended text for geographers. A very useful textbook throughout a 3 year Geography programme." - Ian Harris, Bangor University Key Methods in Geography is an introduction to the principal methodological issues involved in the collection, analysis and presentation of geographical information. It is unique in the reference literature for providing an overview of qualitative and quantitative methods for human and physical geography. An accessible primer, it will be used by students as a reference throughout their degree, on all issues from research design to presentation. This second edition has been fully revised and updated and includes new chapters on internet mediated research, diaries as a research method, making observations and measurements in the field, and the analysis of natural systems. Organized into four sections: Getting Started in Geographical Research; Generating and Working with Data in Human Geography; Generating and Working with Data in Physical Geography; Representing and Interpreting Geographical Data; each chapter comprises: A short definition A summary of the principal arguments A substantive 5,000-word discussion Use of real-life examples Annotated notes for further reading. The teaching of research methods is integral to all geography courses: Key Methods in Geography, 2nd Edition explains all of the key methods with which geography undergraduates must be conversant.