Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003
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Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003
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Author :
language : en
Publisher:
Release Date : 2006
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Forest surveys categories.
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003
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Author : James E. Pollard
language : en
Publisher:
Release Date : 2006
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003 written by James E. Pollard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Forest surveys categories.
The Forest Inventory and Analysis program (FIA) is the key USDA Forest Service (USFS) program that provides the information needed to assess the status and trends in the environmental quality of the Nation's forests. The goal of the FIA Quality Assurance (QA) program is to provide a framework to assure the production of complete, accurate and unbiased forest information of known quality. Specific Measurement Quality Objectives (MQO) for precision are designed to provide a window of performance that we are striving to achieve for every field measurement. These data quality goals were developed from knowledge of measurement processes in forestry and forest ecology, as well as the program needs of FIA. This report is a national summary and compilation of MQO analyses by regional personnel and the National QA Advisor. The efficacy of the MQO, as well as the measurement uncertainty associated with a given field measurement, can be tested by comparing data from blind check plots where, in addition to the field measurements of the standard FIA crew, a second QA measurement of the plot was taken by a crew without knowledge of the first crew's results. These QA data were collected between 2000 and 2003 and analyzed for measurement precision between FIA crews. The charge of this task team was to use the blind-check data to assess the FIA program's ability to meet data quality goals as stated by the MQO. The results presented indicate that the repeatability was within project goals for a wide range of measurements across a variety of forest and nonforest environments. However, there were some variables that displayed noncompliance with MQO goals. In general, there were two types of noncompliance: the first is where all the regions were below the MQO standard, and the second is where a subset of the regions was below the MQO standards or was substantially different from the other remaining regions. Results for each regional analysis are presented in appendix tables. In the course of the study, the task team discovered that there were difficulties in analyzing seedling species and seedling count variables for MQO compliance, and recommends further study of the issue. Also the task team addresses the issue of trees missed or added and recommends additional study of this issue. Lastly, the team points out that traditional MQO analysis of the disturbance and treatment variables may not be adequate. Some attributes where regional compliance rates are dissimilar suggest that regional characteristics (environmental variables such as forest type, physiographic class, and forest fragmentation) may have an impact on the ability to obtain consistent measurements. Additionally, differences in data collection protocols may cause differences in compliance rates. For example, a particular variable may be measured with a calibrated instrument in one region, while ocularly estimated in another region.
Fia National Assessment Of Data Quality For Forest Health Indicators
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Author :
language : en
Publisher:
Release Date : 2009
Fia National Assessment Of Data Quality For Forest Health Indicators written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Forest health categories.
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003
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Author : United States Department of Agriculture
language : en
Publisher: CreateSpace
Release Date : 2015-06-25
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003 written by United States Department of Agriculture and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-25 with categories.
The Forest Inventory and Analysis program (FIA) is the key USDA Forest Service (USFS) program that provides the information needed to assess the status and trends in the environmental quality of the Nation's forests. The goal of the FIA Quality Assurance (QA) program is to provide a framework to assure the production of complete, accurate and unbiased forest information of known quality. Specific Measurement Quality Objectives (MQO) for precision are designed to provide a window of performance that we are striving to achieve for every field measurement. These data quality goals were developed from knowledge of measurement processes in forestry and forest ecology, as well as the program needs of FIA. This report is a national summary and compilation of MQO analyses by regional personnel and the National QA Advisor.
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003
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Author : James E. Pollard
language : en
Publisher:
Release Date : 2006
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003 written by James E. Pollard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Forest surveys categories.
The Forest Inventory and Analysis program (FIA) is the key USDA Forest Service (USFS) program that provides the information needed to assess the status and trends in the environmental quality of the Nation's forests. The goal of the FIA Quality Assurance (QA) program is to provide a framework to assure the production of complete, accurate and unbiased forest information of known quality. Specific Measurement Quality Objectives (MQO) for precision are designed to provide a window of performance that we are striving to achieve for every field measurement. These data quality goals were developed from knowledge of measurement processes in forestry and forest ecology, as well as the program needs of FIA. This report is a national summary and compilation of MQO analyses by regional personnel and the National QA Advisor. The efficacy of the MQO, as well as the measurement uncertainty associated with a given field measurement, can be tested by comparing data from blind check plots where, in addition to the field measurements of the standard FIA crew, a second QA measurement of the plot was taken by a crew without knowledge of the first crew's results. These QA data were collected between 2000 and 2003 and analyzed for measurement precision between FIA crews. The charge of this task team was to use the blind-check data to assess the FIA program's ability to meet data quality goals as stated by the MQO. The results presented indicate that the repeatability was within project goals for a wide range of measurements across a variety of forest and nonforest environments. However, there were some variables that displayed noncompliance with MQO goals. In general, there were two types of noncompliance: the first is where all the regions were below the MQO standard, and the second is where a subset of the regions was below the MQO standards or was substantially different from the other remaining regions. Results for each regional analysis are presented in appendix tables. In the course of the study, the task team discovered that there were difficulties in analyzing seedling species and seedling count variables for MQO compliance, and recommends further study of the issue. Also the task team addresses the issue of trees missed or added and recommends additional study of this issue. Lastly, the team points out that traditional MQO analysis of the disturbance and treatment variables may not be adequate. Some attributes where regional compliance rates are dissimilar suggest that regional characteristics (environmental variables such as forest type, physiographic class, and forest fragmentation) may have an impact on the ability to obtain consistent measurements. Additionally, differences in data collection protocols may cause differences in compliance rates. For example, a particular variable may be measured with a calibrated instrument in one region, while ocularly estimated in another region.
General Technical Report Rmrs
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Author :
language : en
Publisher:
Release Date : 1998
General Technical Report Rmrs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.
Swiss National Forest Inventory Methods And Models Of The Fourth Assessment
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Author : Christoph Fischer
language : en
Publisher: Springer Nature
Release Date : 2019-09-24
Swiss National Forest Inventory Methods And Models Of The Fourth Assessment written by Christoph Fischer and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-24 with Technology & Engineering categories.
The Swiss National Forest Inventory (NFI) is a forest survey on national level which started in 1982 and has already reached its 5th survey cycle (NFI5). It can be characterized as a multisource and multipurpose inventory where information is mainly collected from terrestrial field surveys using permanent sample plots. In addition, data from aerial photography, GIS and forest service questionnaires are also included. The NFI's main objective is to provide statistically reliable and sound figures to stakeholders such as politicians, researchers, ecologists, forest service, timber industry, national and international organizations as well as to international projects such as the Forest Resources Assessment of the United Nations. For Switzerland, NFI results are typically reported on national and regional level. State of the art methods are applied in all fields of data collection which have been proven to be of international interest and have even served as a basis for other European NFIs. The presented methods are applicable to any sample based forest inventory around the globe. In 2001 the Swiss NFI published its methods for the first time. Since then, many methodological changes and improvements have been introduced. This book describes the complete set of methods and revisions since NFI2. It covers various topics ranging from inventory design and statistics to remote sensing, field survey methods and modelling. It also describes data quality concepts and the software framework used for data storage, statistical analysis and result presentation.
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003
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Author :
language : en
Publisher:
Release Date : 2006
Forest Inventory And Analysis National Data Quality Assessment Report For 2000 To 2003 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Forest surveys categories.
New Publications
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Author :
language : en
Publisher:
Release Date : 2006
New Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Forests and forestry categories.
General Technical Report Nrs
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Author :
language : en
Publisher:
Release Date : 2007
General Technical Report Nrs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Electronic journals categories.