Services Directory - Grand_Bay_Bathymetry

Grand_Bay_Bathymetry_1850s (Map Service)

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Current Version: 10.81

Service Description:

Data depicts bathymetry of Grand Bay obtained from H-sheets from the 1850s. Bathymetry data were downloaded from the USGS data release web pages (see data sources below). The downloaded files were opened in ArcGIS Pro 2.8, re-projected into WGS84 to match ArcGIS Online basemap projections, the depth value range was set to 0 to 10.8203, and the symbology was set to a blue color range. Darker blue values indicate a deeper depth, and lighter blue values indicate a shallower depth. Each bathymetry dataset was shared to ArcGIS Online as a hosted tile layer and accompanying service definition. This tile layer is to be used in the Historical Grand Bay Bathymetry Web Map.

Data Sources:

Terrano, J.F., Smith, K.E.L., Muni-Morgan, A.L., Buster, N.A., and Foxen, F., 2021, Historical bathymetry in the Mississippi-Alabama coastal region: Bathymetric soundings, gridded digital elevation model, and hydrographic sheets (ver. 2.0, March 2022): U.S. Geological Survey data release, accessed March 21, 2022, at https://doi.org/10.5066/P9GRUK4B.

Map Name: Map1

Legend

All Layers and Tables

Layers:

Grand Bay Bathymetry 1850s(0)

Tables:

Description:

Data Sources:

Copyright Text: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center (USGS SPCMSC)

Spatial Reference:
102100

Single Fused Map Cache: true

Capabilities: Map,TilesOnly,Tilemap

Tile Info:

Height: 256
Width: 256
DPI: 96
Levels of Detail: (# Levels: 24)

Level ID: 0 [Start Tile, End Tile]
Level ID: 1 [Start Tile, End Tile]
Level ID: 2 [Start Tile, End Tile]
Level ID: 3 [Start Tile, End Tile]
Level ID: 4 [Start Tile, End Tile]
Level ID: 5 [Start Tile, End Tile]
Level ID: 6 [Start Tile, End Tile]
Level ID: 7 [Start Tile, End Tile]
Level ID: 8 [Start Tile, End Tile]
Level ID: 9 [Start Tile, End Tile]
Level ID: 10 [Start Tile, End Tile]
Level ID: 11 [Start Tile, End Tile]
Level ID: 12 [Start Tile, End Tile]
Level ID: 13 [Start Tile, End Tile]
Level ID: 14 [Start Tile, End Tile]
Level ID: 15 [Start Tile, End Tile]
Level ID: 16 [Start Tile, End Tile]
Level ID: 17 [Start Tile, End Tile]
Level ID: 18 [Start Tile, End Tile]
Level ID: 19 [Start Tile, End Tile]
Level ID: 20 [Start Tile, End Tile]
Level ID: 21 [Start Tile, End Tile]
Level ID: 22 [Start Tile, End Tile]
Level ID: 23 [Start Tile, End Tile]

Format: Mixed
Compression Quality: 75
Origin:
Spatial Reference:
102100

Initial Extent:

Full Extent:

Min Scale: 5.91657527591555E8
Max Scale: 564.248588

Min LOD: 0
Max LOD: 20

Units: esriMeters

Supported Image Format Types: Mixed

Export Tiles Allowed: false
Max Export Tiles Count: 100000

Document Info:

Title: Grand Bay Bathymetry 1850s Tile Layer
Author: bnwilliams_USGS
Comments:
Subject: Tile Layer used in the A Century of Change in Grand Bay, Mississippi and Alabama geonarrative. Data depicts bathymetry of Grand Bay obtained from H-sheets from the 1850s. See the description section for data source information.
Category:
Keywords: Grand Bay, Grand Bay National Estuarine Research Reserve, GNDNERR, Mississippi, Alabama, Grand Bay Story Map, U.S. Geological Survey, USGS, St. Petersburg Coastal and Marine Science Center, SPCMSC, Estuarine and MaRsh Geology, EMRG, Bathymetry, 1850s