Tile Packages

Introduction

Tile packages are a proprietary image format that incorporates raster data at different levels and provides the base imagery layer for the SeaLog program. They are created using ArcMap or ArcGIS Pro by setting up an MXD or Project with a web mercator (3857) projection, adding raster and vector layers, setting the display extent to your area of interest, and using the “Data Management Tools”, “Package”, “Create Map Tile Package” toolbox.

All content on this page is licensed for non-commercial use with the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 license.

Current tile packages

• Anchorage, level 18 (1.7 GB)
• Fairbanks, level 20 (2.2 GB)
• Juneau, level 17 (163 MB)
• Prince William Sound, level 15 (1.1 GB)
• Resurrection Bay/KEFJ (64 MB)
• Seattle, level 18 (1.2 GB)
• Seward, level 17 (341 MB)
• East Coast, level 15 (14 GB)
• NOAA West Coast North (1.6 GB)
• NOAA West Coast South (0.5 GB)
• North Pacific, level 10 (393 MB)
• KK_1-2.tpk (163 MB)
• KK_2-2.tpk (139 MB)
• KK_3-2.tpk (138 MB)
• KK_4.tpk (419 MB)

ArcMap MXD and data layers

We also have an ArcMap MXD set up with raster and vector data layers to produce tile packages for Alaska south of Nome. Unzip, open the MXD in ArcMap, set your extent to match, and generate your own tile package.

• Southern Alaska MXD package (804 MB)

Testing tile packages

Because SeaLog either uses your current location, or defaults to (0, 0), it can be hard to confirm a tile package covers the proper extent if you aren’t there. We wrote a utility program, TilePackageChecker (63 MB) to solve that problem. It lets you load a tile package into a map interface similar to SeaLog, then set your coordinates, and re-center the map to those coordinates.

Consult the Tools page for more details.