Spatial Data Download

Cartographic

Juneau Area Tics

These registration tics are for ArcInfo users only. Files "tic_dd" and "tic_utm" are ArcInfo coverages that contain only tics. The tics are associated with the corners and internal tic marks of the USGS topographic maps in the Juneau, Alaska area. Extensive hydrology and glaciology research in the Mendenhall Valley has increased the density of tics in that area. The downloadable files are available in either Arc interchange format (*.e00) or Arc generate format (*.gen). There are two versions, one in geograhic coordinates (lat/long, NAD27), the second in UTM coordinates (Zone 8N, NAD27).

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Area Tics - UTM	Juneau, Alaska	1:63,360	UTM	View Graphic	View Metadata	Arc interchange format Arc generate format	UAS
Juneau Area Tics - GEO	Juneau, Alaska	1:63,360	Geographic	View Graphic	View Metadata	Arc interchange format Arc generate format	UAS

Basemaps

Alaska Coastline

Dataset includes the Alaska coastline in 1:250,000 with some areas at 1:63,360 scale, originally available through Alaska Dept. of Natual Resoources. Metadata is currently under revision.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Alaska Coastline	Statewide	1:250,000 / 1:63,360	Albers	View Graphic	View Metadata	Arc interchange format ArcView Shapefile	UAS, DNR

Juneau DEM

jun_dem is a mosaic of nine USGS 1:63360 DEMS. They are Juneau A-1, A-2, A-3, B-1, B-2, B-3, C-1, C-2, andC-3. Information about the original DEMS is available at http://mac.usgs.gov/mac/isb/pubs/factsheets/fs04000.html. The user is cautioned that the original data are old, and that the resolution is low. The approximately 48 meter pixels have been resampled to their present size. Flaws exist, especilly around quad boundaries. The mosaic is available as an ESRI grid in .e00 format or as a Winzip archive.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau DEM	Juneau	1:63,360	UTM	View Graphic	View Metadata	GRID in Arc interchange format GRID in WinZipped Workspace	UAS

Historic Glacier Bay Topographic Quadrangles (1948) NEW!

These .tif raster data are images of several historic Glacier Bay and Taku Area topographic quadrangles (including collar information) issued by the U.S. Geologic Survey in the 1950's. These rasters were scanned from paper maps currently held by the UAF Rasmuson Library in Fairbanks, Alaska. Aerial photography of these areas was conducted in 1948, though actual map publication dates vary. Some of these maps contain minor revisions. As snapshots in time, these rasters give the user an opportunity to chart geomorphological changes in the Southeastern Alaska area. These maps also provide historical glacier terminus positions and elevations. WARNING: These zipped workspaces are relatively large files containing a raster (.tif), world file (.tfw), georeferencing tics (shapefile), and metadata files (.xml, .sgml, .html); these files may take some time to download.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau (B-1), Alaska	Juneau: Taku and Hole in the Wall Glaciers	1:63:360	UTM	View Graphic	View SGML Metadata View HTML Metadata	WinZipped Workspace (39,664 KB)	UAS
Juneau (D-6), Alaska	Glacier Bay: Casement and White Glaciers	1:63:360	UTM	View Graphic	View SGML Metadata View HTML Metadata	WinZipped Workspace (52,290 KB)	UAS
Mt. Fairweather (D-1), Alaska	Glacier Bay: Muir Glacier to Sebree Island	1:63:360	UTM	View Graphic	View SGML Metadata View HTML Metadata	WinZipped Workspace (50,451 KB)	UAS
Mt. Fairweather (D-2), Alaska	Glacier Bay: Carroll and Hugh Miller Glaciers	1:63:360	UTM	View Graphic	View SGML Metadata View HTML Metadata	WinZipped Workspace (50,650 KB)	UAS
Skagway (A-3), Alaska	Glacier Bay: Takhin River to McBride and Casement Glaciers	1:63:360	UTM	View Graphic	View SGML Metadata View HTML Metadata	WinZipped Workspace (31,528 KB)	UAS
Skagway (A-4), Alaska	Glacier Bay: Takhin Glacier to Burroughs Glacier and Muir Inlet	1:63:360	UTM	View Graphic	View SGML Metadata View HTML Metadata	WinZipped Workspace (28,186 KB)	UAS

Alaska Boundary Tribunal Maps (1903) NEW!

These .tif raster data are images of the Alaska Boundary Tribunal Map Series held at the Alaska State Historical Library. Surveys of these areas were conducted in the early 1900's and the map series was orinigally published in 1903. As snapshots in time, these rasters give the user an opportunity to chart geomorphological changes in the Southeastern Alaska area. These maps also provide historical glacier terminus positions and elevations. This first series of 13 maps include elevations and are 1:250,000 scale. They were georeferenced with the ADNR Albers tics available through ASGDC (link to metadata and download for tics).

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
01_dixonentrance	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
02_portlandinlet	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
03_behm_portlandcanal	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
04_clarencestrait	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
05_stikineriver_bradfieldcanal	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
06_tracyarm_fredericksound	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
07_juneau_endicottarm	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
08_juneauicefield	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
09_nglacierbay_skagway	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
10_glacierbay_icystrait	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
11_lituyabay_mtfairweather	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
12_alsekriver_drybay	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
13_yakutatbay_malaspinaglacier	AK Panhandle	1:250,000	Albers	View Graphic	View SGML Metadata View HTML Metadata	Raster (.tif) WinZipped Text (.tfw) World File	UAS
Map Index Image	AK Panhandle					Raster (.tif) WinZipped	UAS

Juneau Elevation Contours

Datasets include 200 and 100 meter elevation countours for the Juneau, Alaska area. The contours were derived from a mosaic of USGS DEMs. Orgingal DEMs: Juneau A-1, A-2, A-3, B-1, B-2, B-3, C-1, C-2, and C-3. The contours were produced for general cartographic use. Because of the potential errors, the data may be inappropriate for analysis. See metadata for more information.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Elevation Contours - 100m	Juneau, Alaska	1:63,360	UTM	View Graphic	View Metadata	Arc interchange format ArcView Shapefile	UAS
Juneau Elevation Contours - 200m	Juneau, Alaska	1:63,360	UTM	View Graphic	View Metadata	Arc interchange format ArcView Shapefile	UAS

Hydrologic

Juneau Streams

This data set contains all the USGS DLG hydrography for the Juneau area that is available at the scale of 1:25,000.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Area Streams - DLG - UTM	Juneau, Alaska	1:25,000	UTM	View Graphic	View Metadata	ArcView Shapefile Arc interchange format	USGS

Juneau Watersheds

The coverage delineates watershed boundaries for the Mendenhall River, Duck, Jordan, Nugget, Montana, Lemon, and McGinnis Creeks located in Juneau Alaska. Watersheds are defined for streams that are second order at a scale of 1:63360, or one inch to one mile. Surface water movements in some areas of low gradient were mapped with differential GPS. Elsewhere surface water divides were interpreted from USGS topographic maps.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Area Watersheds	Juneau, Alaska	1:63,360	UTM	View Graphic	View Metadata	ArcView Shapefile Arc interchange format	UAS

Juneau Area Water-Sampling Sites

Point data describing water-sampling and discharge sites specific to UAS "319" Clean Water Act grants funded by the U.S. EPA through the Alaska Dept. of Environmental Conservation and other, related studies.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Area Water Smapling Sites	Juneau, Alaska	1:63,360	UTM	View Graphic	View Metadata	ArcView Shapefile Arc interchange format	UAS

Juneau Area "qpt" Data

The "qpt" files contain the simulaneous daily records of discharge, precipitation, and temperature at stations in and around Mendenhall Valley, Juneau Alaska. The period of record for most components of the file is around five years. Included are Mendenhall River, Jordan Creek, Montana and Duck Creek Dischage and temperature and precipiation at the Juneau airport and Backloop Road National Weather Service stations. The graphic file is a .jpg showing the period of record for each site.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Area "qpt" data	Juneau, Alaska	N/A	N/A	View Data Timeline	View Metadata	Tab-Delimited Dataset	UAS

Mendenhall Glacier Terminus Positions 1997-2004 NEW!

These files include both the GPS point positions and resulting terminus position arcs from walking GPS surveys of the Mendenhall Glacier Terminus conducted by UAS and UAF staff, students, and faculty from Sept. 1997 to Aug. 2004 for glacier research under the direction of Roman Motyka, Reserach Associate Professor of Geology and Geophysics, Geophysical Institute/UAF. The purpose of this dataset is to demonstrate changes in Mendenhall Glacier terminus position from the late 1990's to early 2000's. No vertical measurements were recorded for these positions. Horizontal accuracy varies.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Mendenhall Glacier Terminus GPS Positions - Points	Mendenhall Glacier Terminus	1:25,000	UTM	View Graphic	View Metadata XML Metadata SGML	Arc View Shapefile Arc interchange format	UAS, UAF
Mendenhall Glacier Terminus GPS Positions - Arcs	Mendenhall Glacier Terminus	1:25,000	UTM	View Graphic	View Metadata XML Metadata SGML	ArcView Shapefile Arc interchange format	UAS,UAF

Mendenhall Lake Bathymetry

Mendenhall Lake bathymetry was obtained using an acoustic depth sounder (transducer: 600 W, 200kHz and either 15 degree or 5 degree beamwidths) from a small inflatable boat. The accuracy of the soundings is estimated to be about 2%, and GPS sounder positions were accurate to about 1m. About 11,500 soundings were compiled by UAS in the summer of 2000 and these were combined with roughly 1,100 soundings collected by J. Fleisher (shapefile: "00pts"). A sub-sample of these soundings (shapefile: "ss00pts") was selected at random to reduce redundancy and smooth data for production of a detailed year 2000 2 meter contour bathymetric chart of the lake (shapefile: "2mctour00").

Historic bathymetric data collected by Alaska Department of Fish and Game was imported into ArcGIS (shapefile: "72pts") and used to create a similar, though less accurate, 2 meter contour bathymetric chart representative of lake bottom contours for the year 1972 (shapefile: "2mctour72"). Three GRID rasters are available: 1972 bathymetry ("mbath72"), 2000 bathymetry ("ssbath1"), and a raster visually displaying the absolute value of the difference between the 1972 and 2000 datasets ("calc4"), where high cell values indicate an area with more change and low cell values indicate an area of less change. Point and line data are available as WinZipped shapefiles. GRIDs are available in ESRI Arc Interhchange (.e00) format.

Name Extent Scale Projection Graphic Metadata Download Contributor

2000 Mendenhall Lake Bathymetry
Complete Sample Point Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata ArcView Shapefile UAS

2000 Mendenhall Lake Bathymetry
Sub-Sample Point Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata ArcView Shapefile UAS

2000 Mendenhall Lake Bathymetry
2-meter Contour Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata ArcView Shapefile UAS

2000 Mendenhall Lake Bathymetry
GRID Raster Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata Arc interchange format UAS

1972 Mendenhall Lake Bathymetry
Sample Point Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata ArcView Shapefile UAS, ADFG

1972 Mendenhall Lake Bathymetry
2-meter Contour Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata ArcView Shapefile UAS, ADFG

1972 Mendenhall Lake Bathymetry
GRID Raster Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata Arc interchange format UAS, ADFG

1972-2000 Change in Mendenhall
Lake Bathymetry, GRID Raster Dataset Juneau, Alaska 1:25,000 UTM View Graphic View Metadata
XML Metadata Arc interchange format UAS, ADFG

Transportation

Juneau Area Roads

This coverage contains a complete set of road arcs for the Juneau area road system, based upon appended arcs found in the 1:25,000 scale transportation DLGs for the Juneau, Alaska area. The original coverages are available fromthe USGS at http://agdc.usgs/to_geo.html. In addition to appending the original coverages, several other edits were made: map boundaries were deleted, missing or incomplete arcs were digitized using USFS DOQ and CBJ CENTERARC datasets as references, streetnames were added using the CBJ STNAMES annotation layer as a reference, tic numbers were updated to match those in use locally (at the University of Alaska, Southeast), features at map boundaries were nodesnapped, and unpopulated items in the attribute tables were deleted.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Area Roads	Juneau, Alaska	1:25,000	UTM	View Graphic	View HTML Metadata SGML Metadata	ArcView Shapefile Arc interchange format	UAS

Large Cruise Ship Discharge

This coverage is intended to graphically show where cruise ships discharged gray and black water in Alaska. Cruise ship discharge logs, prepared by crew members, were used to create a GIS for discharge events on Alaska cruises. Ships that discharge within the waters of Alaska (within three miles of the shore) are required by law to prepare these logs. A number of large ships do not discharge within Alaskan waters and are not included in this record. This coverage only contains information from large (> 500 passengers) ships. The period of record is the summer of 2001 (Most large ships have installed advanced treatment systems that discharge continuously and are no longer holding and dumping in specific areas). Logs were submitted in written form to and subsequently automated by the State of Alaska, Department of Environmental Conservation (DEC). ArcInfo coverages were prepared from the automated files by Environmental Science, University of Alaska, Southeast.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Large Cruise Ship Discharge	Southeastern Alaska	1:63,360	Albers	View Graphic	View Metadata	ArcView Shapefile Arc interchange format	UAS, ADEC

Development

Juneau Avalanche Hazard

This dataset represents avalanche paths that affect developed areas in Juneau, Alaska. The delineation of the avalanche paths is based on historic records and contemporary observations of disturbed terrain and vegetation. Not all paths are included. Many other areas in and around Juneau are affected by avalanches and can be quite dangerous. These data are not intended to provide a forecast or to define the probability of any single avalanche event; rather, where avalanches have typically occurred in the past.
The upper extents of the paths were determined by following the 45-degree slope contour, a slope angle often associated with the limits of slab formation. The lower extents conform with the run-outs of larger events.

Name	Extent	Scale	Projection	Graphic	Metadata	Download	Contributor
Juneau Avalanche Hazard	Downtown Juneau, Alaska	1:63,360	UTM	View Graphic	View Metadata	ArcView Shapefile Arc interchange format	UAS, Southeast Alaska Avalanche Center

Download Tools

Gunzip

File Download	Description	Purpose
gunzip.exe	GUNZIP utility	Extracts files with '.gzip' extension

Tar

File Download	Description	Purpose
tar.exe	TAR utility	Extract files with '.tar' extension

SDTS2COV

File Download	Description	Purpose
sdts2cov.aml	Arc Macro Language (AML) tool for converting SDTS files to coverages	This AML is used to convert SDTS 1:24K, 1:100K, and 1:2M DLG-3 data into ARC coverages. It joins all of the attribute modules to the coverage's feature attribute tables.

Spatial Data at UAS - Last Updated: February 13, 2005 - The University of Alaska Southeast
The URL of this site is http://www.uas.alaska.edu/spatialdata