Alaska Wetlands & Hydrography

Alaska Wetlands & Hydrography
Author:
Publisher:
Total Pages: 46
Release: 1997
Genre: Ecological mapping
ISBN:

"This report presents information and conclusions on the Alaska Wetlands GATF Pilot Project. This report was a collaborative effort of several agencies and was made possible by the Intelligence Community's Environmental Program, Government Applications Task Force (EP/GATF) and the Civil Applications Committee (CAC). The report focuses on procedures used by the Fish and Wildlife Service (FWS) and the Bureau of Land Management (BLM) to employ Intelligence Community (IC) National Systems imagery for inventorying wetlands, documenting wetland trends (losses and gains), and identifying boundaries of hydrographic features.

Alaska Wetlands & Hydrography

Alaska Wetlands & Hydrography
Author: Jonathan V. Hall
Publisher:
Total Pages: 39
Release: 1996
Genre: Ecological mapping
ISBN:

"This report presents information and conclusions on the Alaska Wetlands GATF Pilot Project. This report was a collaborative effort of several agencies and was made possible by the Intelligence Community's Environmental Program, Government Applications Task Force (EP/GATF) and the Civil Applications Committee (CAC). The report focuses on procedures used by the Fish and Wildlife Service (FWS) and the Bureau of Land Management (BLM) to employ Intelligence Community (IC) National Systems imagery for inventorying wetlands, documenting wetland trends (losses and gains), and identifying boundaries of hydrographic features.

Current Issues in Alaska Wetland Management

Current Issues in Alaska Wetland Management
Author: Charles H. Racine
Publisher:
Total Pages: 32
Release: 1994
Genre: Wetland conservation
ISBN:

Although wetlands cover over half of Alaska, the status, management and regulation of these areas is problematic. The technical literature on Alaskan wetland vegetation, soils and hydrology is abundant, but the application of the literature to wetland management is poorly developed. This report identifies problems, issues and information gaps in the management of Alaskan wetlands. There are numerous arguments and debates on the designation, function and values, and disturbance of certain wetlands in Alaska. Permafrost, fire cycles and unique hydrologic regimes complicate the designation and delineation of Alaskan wetlands. The functions and values of most Alaskan wetlands clearly lie in their importance as habitat, particularly for migrating waterbirds, but an understanding of their role in flood water storage, water quality improvement, subsistence and other functions remains controversial and in need of study. Disturbance and other impacts on Alaskan wetlands is small relative to the large area that wetlands cover and in comparison with the loss of wetlands in the lower 48 states. However, several development projects in Alaska have affected large wetland areas and methods to restore these wetlands are being developed. Cumulative impacts are unknown, as are techniques for restoring permafrost wetlands containing gravel fill.

Hydrography

Hydrography
Author: U.S. Coast and Geodetic Survey
Publisher:
Total Pages: 46
Release: 1916
Genre: Drags (Hydrography).
ISBN:

Status of Alaska Wetlands (Classic Reprint)

Status of Alaska Wetlands (Classic Reprint)
Author: Jonathan V. Hall
Publisher: Forgotten Books
Total Pages: 38
Release: 2018-09-07
Genre:
ISBN: 9781390548471

Excerpt from Status of Alaska Wetlands The United States Fish and Wildlife Service has major responsibility for the protection and man agement of migratory and endangered fish and wildlife and their habitats. Of particular concern are wetlands and associated deepwater habitats. Since 1974 the Fish and Wildlife Service, through its National Wetlands Inventory Project, has inventoried the nation's wetlands. The purpose is to develop and disseminate comprehensive data concerning the characteristics and extent of wet lands. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Correlating Enhanced National Wetlands Inventory Data with Wetland Functions for Watershed Assessments

Correlating Enhanced National Wetlands Inventory Data with Wetland Functions for Watershed Assessments
Author: U. S. Fish U.S. Fish and Wildlife Service
Publisher: CreateSpace
Total Pages: 30
Release: 2015-02-14
Genre:
ISBN: 9781507771761

The U.S. Fish and Wildlife Service has been conducting the National Wetlands Inventory for over 25 years. The NWI Program has produced wetland maps for 91% (78% final) of the lower 48 states, all of Hawaii, and 35% of Alaska. Wetlands are classified according to the Service's official wetland classification system (Cowardin et al. 1979). This classification describes wetlands by ecological system (Marine, Estuarine, Lacustrine, Riverine, and Palustrine), by subsystem (e.g., water depth, exposure to tides), class (vegetative life form or substrate type), subclass, water regimes (hydrology), water chemistry (pH and salinity), and special modifiers (e.g., alterations by humans). The maps have been converted to digital data for 47% of the lower 48 states and 18% of Alaska. The availability of digital data and geographic information system (GIS) technology make it possible to use NWI data for various geospatial analyses.