| snippet:
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Raster dataset with vertical datum elevation differences between the NGVD29 and NAVD88 vertical datums, 1000 ft vertcon05. |
| summary:
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Raster dataset with vertical datum elevation differences between the NGVD29 and NAVD88 vertical datums, 1000 ft vertcon05. |
| accessInformation:
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SFWMD, Geospatial Services: Geospatial Services is a unit within the South Florida Water Management District’s Information Technology Bureau (ITB). Geospatial Services manages and maintains enterprise geospatial services, products, and data and is governed by the ITB's Policies and Procedures. |
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| maxScale:
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72098.6893659177 |
| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Raster dataset with vertical datum elevation differences between the NGVD29 and NAVD88 vertical datums, 1000 ft vertcon05. Gridded values represent the difference in elevation values, in feet, between two vertical reference systems -- National Geodetic Vertical Datum of 1929 (NGVD29) and North American Vertical Datum of 1988 (NAVD88). The current standard reference for elevation, or vertical datum, is NAVD88 but some data still exist in NGVD29 and for some purposes it is still necessary to work in NGVD29. </SPAN></P><P><SPAN>Raster values represent the difference between the two datums and can be used to convert from NAVD88 to NGVD29 by adding the datum difference to NAVD88 values or subtracting the datum difference to go from NGVD29 to NAVD88. </SPAN></P><P><SPAN>The datum-shift values were converted from the Corpscon software, version 6, using VertCon05 (version 2.5), which was put together by USACE/TEC and includes recent survey monumentation for southern Florida. The VertCon05 is intended as an improvement on the older VertCon94, which previously was provided by the NGDC as part of the standard VertCon conversion package. This dataset covers all of southern Florida, up to 29-degrees latitude. </SPAN></P></DIV></DIV></DIV> |
| licenseInfo:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of the limitations of the data. Acknowledgment of the US Army Corps of Engineers would be appreciated for products derived from these data.The data represented is the result of data collection and processing per contract specifications and indicates the general existing conditions at the time of the data collection. As such, it is only valid for its intended use, content, time, and accuracy specifications. The user is responsible for the results of any application of the data for other than its intended purpose.</SPAN></P></DIV></DIV></DIV> |
| catalogPath:
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| title:
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SP_SM_VDATUM_DIF_1000FT |
| type:
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Image Service |
| url:
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https://geoweb.sfwmd.gov/agsimg1 |
| tags:
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["NGVD29","NAVD88","vertical","conversion","elevation","topography","DEM","datum shift","digital elevation model","DEM"] |
| culture:
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en-US |
| name:
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SP_SM_VDATUM_DIF_1000FT |
| guid:
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| minScale:
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9228632.23883746 |
| spatialReference:
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NAD_1983_HARN_StatePlane_Florida_East_FIPS_0901_Feet |