Attribute_Accuracy:
Attribute_Accuracy_Report:
A multi-stage error checking process is used to verify both attribute accuracy and logical consistency throughout data production. The process includes a standardized data entry methodology, data review by in-house and external resource experts, a final Quality Assurance/Quality Control (QA/QC) process, and multiple automated logical consistency checks. Quantitative data (such as densities, counts, abundances, or concentrations) provided by resource experts for inclusion in the data set may vary widely in attribute accuracy, depending upon the methodology used to collect and compile such data. For a more detailed evaluation of source data attribute accuracy, contact the sources listed in the Lineage section.
Logical_Consistency_Report:
A multi-stage error checking process, described in the above Attribute_Accuracy_Report, is used to verify both attribute accuracy and logical consistency throughout data production. This process includes multiple automated logical consistency checks that test the files for missing or duplicate data, rules for proper coding, GIS topological consistencies, and SQL SERVER(R) to ArcGIS(R) consistencies. A final review is made by the ESI manager, where the data are written to CD-ROM and the metadata are written. In the process of checking for topological and database consistencies, new ID's and RARNUM's are also generated, while retaining the original RARNUM stored as MAPRAR. The new ID's are a combination of atlas number, element number, and record number. In addition, the value used to represent the element is modified to reflect the type of feature being mapped. In the case of an element that is normally represented by a point or polygon, a value of 20 is added to the standard element value for mapping of linear features. In the case where an element usually mapped as a polygon is represented by a point, a value of 30 is added to the regular element value. The RARNUM's are also modified to include the atlas number, so multiple atlases can be combined and RARNUM's remain unique. RARNUM's are redefined on an element basis, so "resources at risk" groupings will contain only a single element.
Completeness_Report:
These data represent a synthesis of expert knowledge, available hardcopy documents, survey data, maps, and digital data on migratory staging, rafting, concentration areas, and general distribution for birds. These data do not necessarily represent all bird occurrences in BSEE Arctic Alaska. The following species are included in this data set: (Species_ID, Common Name, Scientific Name [n/a if not applicable]): 3, Red-throated loon, Gavia stellata; 17, Northern pintail, Anas acuta; 22, Greater scaup, Aythya marila; 27, Long-tailed duck, Clangula hyemalis; 29, White-winged scoter, Melanitta fusca; 30, Surf scoter, Melanitta perspicillata; 31, Pacific loon, Gavia pacifica; 33, Red-breasted merganser, Mergus serrator; 35, Parasitic jaeger, Stercorarius parasiticus; 36, Glaucous-winged gull, Larus glaucescens; 46, Common murre, Uria aalge; 51, Tufted puffin, Fratercula cirrhata; 53, Red-necked phalarope, Phalaropus lobatus; 80, Arctic tern, Sterna paradisaea; 81, Horned puffin, Fratercula corniculata; 82, Glaucous gull, Larus hyperboreus; 84, Parakeet auklet, Aethia psittacula; 100, Black-legged kittiwake, Rissa tridactyla; 103, Common eider, Somateria mollissima; 105, Thick-billed murre, Uria lomvia; 106, Ancient murrelet, Synthliboramphus antiquus; 108, Kittlitz's murrelet, Brachyramphus brevirostris; 109, Crested auklet, Aethia cristatella; 111, Least auklet, Aethia pusilla; 112, Black guillemot, Cepphus grylle; 114, Sabine's gull, Xema sabini; 129, Northern fulmar, Fulmarus glacialis; 158, King eider, Somateria spectabilis; 159, Steller's eider, Polysticta stelleri; 160, Red phalarope, Phalaropus fulicarius; 197, Black scoter, Melanitta americana; 199, Pomarine jaeger, Stercorarius pomarinus; 201, Short-tailed shearwater, Puffinus tenuirostris; 343, Long-tailed jaeger, Stercorarius longicaudus; 409, Ross's gull, Rhodostethia rosea; 410, Ivory gull, Pagophila eburnea; 415, Spectacled eider, Somateria fischeri; 462, Loons, Gavia spp.; 1009, Shearwaters, n/a.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Spatial components for the biological data layers can come from expert interviews, hardcopy, or digital sources. Some of the spatial components of the biological data layers may have been developed using regional experts who estimate concentration areas. It is difficult to estimate the positional accuracy of such data, except to state that they are compiled on hardcopy base maps with a scale of 1:1,000,000. Some of the spatial components of the biological data sets are developed from pre-existing digital or hardcopy sources and reflect the positional accuracy of these original data. Note that biological resource data by their very nature are considered "fuzzy", and this should be understood when considering the positional accuracy of vector digital objects representing these resources. See the Lineage and Process_Description sections for more information on the original source data and how these data were integrated or manipulated to create the final data set.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: AUDUBON ALASKA
Publication_Date: 2007
Title: ALASKA IMPORTANT BIRD AREAS
Geospatial_Data_Presentation_Form: VECTOR DIGITAL DATA
Other_Citation_Details:
AUDUBON ALASKA; SOUTHEAST ALASKA GIS LIBRARY; UNIVERSITY OF ALASKA SOUTHEAST
Type_of_Source_Media: ONLINE
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2007
Source_Currentness_Reference: DATE OF PUBLICATION
Source_Citation_Abbreviation: NONE
Source_Contribution: BIRDS INFORMATION
Source_Information:
Source_Citation:
Citation_Information:
Originator: SEA DUCK JOINT VENTURE
Publication_Date: 2022
Title: ATLAS OF SEA DUCK KEY HABITAT SITES IN NORTH AMERICA
Geospatial_Data_Presentation_Form: VECTOR DIGITAL DATA
Other_Citation_Details: SEA DUCK JOINT VENTURE
Online_Linkage:
Type_of_Source_Media: EMAIL
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2022
Source_Currentness_Reference: DATE OF PUBLICATION
Source_Citation_Abbreviation: NONE
Source_Contribution: BIRDS INFORMATION
Source_Information:
Source_Citation:
Citation_Information:
Originator: USGS ALASKA SCIENCE CENTER
Publication_Date: 2023
Title: NORTH PACIFIC PELAGIC SEABIRD DATABASE (NPPSD)
Geospatial_Data_Presentation_Form: VECTOR DIGITAL DATA
Publication_Information:
Publication_Place: ANCHORAGE, AK
Publisher: U.S. GEOLOGICAL SURVEY, ALASKA SCIENCE CENTER
Other_Citation_Details:
Drew, G.S., Schoen, S.K., Hood, M.D., Arimitsu, M.L., Piatt, J.F., 2005, North Pacific Pelagic Seabird Database (NPPSD) (ver 4.1, May 2023): U.S. Geological Survey data release,
https://doi.org/10.5066/F7WQ01T3
Online_Linkage: https://doi.org/10.5066/F7WQ01T3
Type_of_Source_Media: EMAIL
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2023
Source_Currentness_Reference: DATE OF PUBLICATION
Source_Citation_Abbreviation: NONE
Source_Contribution: BIRDS INFORMATION
Process_Step:
Process_Description:
Three main sources of data were used to depict bird distribution and seasonality for this data layer: 1) vector digital datasets provided by Audubon Alaska, Sea Duck Joint Venture, and USGS; 2) numerous published and unpublished reports; 3) personal interviews with resource experts from USGS and USFWS.
The above digital and/or hardcopy sources were compiled by the project biologist to create the BIRDS data layer. Depending on the type of source data, three general approaches are used for compiling the data layer: 1) information gathered during initial interviews and from hardcopy sources are compiled onto U.S. Geological Survey 1:1,000,000 topographic quadrangles and digitized; 2) hardcopy maps are digitized at their source scale; 3) digital data layers are evaluated and used "as is" or integrated with the hardcopy data sources. See the Lineage section for additional information on the type of source data for this data layer. The ESI, biology, and human-use data are compiled into the standard ESI digital data format. A second set of interviews with participating resource experts are conducted to review the compiled data. If necessary, edits to the BIRDS data layer are made based on the recommendations of the resource experts, and final hardcopy maps and digital data are created.
Process_Date: 20231215
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Bureau of Safety and Environmental Enforcement (BSEE), U.S. Department of the Interior
Contact_Person:
Bureau of Safety and Environmental Enforcement (BSEE), U.S. Department of the Interior Alaska OCS Region Program Manager
Contact_Address:
Address_Type: Physical address
Address: 3801 Centerpoint Dr Ste 500
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99503-5820
Contact_Voice_Telephone: (907) 334-5300
Contact_Electronic_Mail_Address: Guy.Hayes@bsee.gov