Revision Log
Recent VDatum news, including new VDatum application areas and software release announcements are posted on this page. To receive the same news via email, please subscribe to our VDatum's vdatum.announce mailing list.
Data
September 07, 2023 
VDatum 4.6.1 is released!
- Updated tidal grids, the grid version of the New York/Connecticut/Rhode Island, Outer NY Bight sub region has been changed to 4.4
May 17, 2023
VDatum 4.6 is released!
- Added - Puerto Rico and U.S. Virgin Islands Regional Model, Version 02
- HTDP 3.5.0 integration (ITRF 2020, WGS84(G1150), WGS84(G1674)
- Renaming of GTX files within regional model folders
November 16, 2022
VDatum 4.5.1 is released!
- No new data avaliable in this release
October 18, 2022
VDatum 4.5 is released!
- Added - Columbia River, Version 1.0
May 11, 2022
VDatum 4.4.2 is released!
- No new data avaliable in this release
March 24, 2022
VDatum 4.4.1 is released!
- No new data avaliable in this release
March 15, 2022
VDatum 4.4 is released!
- Updated the WEST coastal Regional Model, that includes Spatially Varying Uncertainty
- Updated Washington - Coastal to Version 1
- Updated Washington - Strait of Juan de Fuca Inland to Version 1
- Updated Washington - Strait of Juan de Fuca to Version 4
- Updated Washington - Puget Sound to Version 3
- Updated Washington/Oregon/California - Offshore to Version 1
- Updated Oregon - Coastal Inland to Version 3
- Updated Oregon - Coastal to Version 1
- Updated California - Monterey Bay to Morro Bay to Version 3
- Updated California/Oregon - Coastal to Version 1
- Updated California - San Francisco Bay Vicinity to Version 3
- Updated California - San Francisco Bay Inland to Version 1
- Updated California - Southern California Inland to Version 1
- Updated California - Southern California to Version 1
- Updated the Tidal layer into the online map
- Updated Spatially Varying Uncertainty Availability layer into the online map
September 22, 2021
VDatum 4.3 is released! (Updated on September 28, 2021)
- Updated Chesapeake and Delaware Bay Regional Model, that includes Spatially Varying Uncertainty
- Updated New Jersey - coastal embayment - South to Version 3.2
- Updated Virginia/Maryland/Delaware/New Jersey - Mid-Atlantic Bight shelf to Version 3.3
- Updated Delaware - Delaware Bay to Version 3.3
- Updated Virginia/Maryland/Delaware - Coastal embayment to Version 2.3
- Removed Virginia/Maryland - Chesapeake Bay (Version 1.2)
- Added Virginia/Maryland - East Chesapeake Bay, Version 1.1
- Added Maryland - Northwest Chesapeake Bay, Version 1.1
- Added Virginia - Southwest Chesapeake Bay, Version 1.1
- Added Spatially Varying Uncertainty Availability layer into the online map
- Added new feature to output WKT information into log file for file conversion formats
May 19, 2021
VDatum 4.2 is released!
- New support for xGEOID20b (BETA)
December 03, 2020
VDatum 4.1.2 is released!
- No new data avaliable in this release
September 10, 2020
VDatum 4.1.1 is released!
- Enhancement of NAD83(PA11) and NAD83(MA11) to work with State Plane Coordinates
- Fixes Combined Factor issue
- Fixes Feet to Meter conversion issue
- Fixes an issue in online version that caused the GEOID value missing during ASCII Conversion
- Enhancement on GEOID list and selection
- Fixes a broken link bug for AK - Southeast on download page
June 23, 2020
VDatum 4.1 is released!
- Integration of VERTCON
- Bug fixes on NCcoast11_8301 MTL gtx file issue
- Uncertainty updateds on New Jersey - coastal embayment - North, Version 1.2
- Uncertainty updateds on New York - The Great South Bay, Version 3.4
- Uncertainty updateds on New Jersey/New York/Connecticut – Northern NJ, NY Harbor, western Long Island Sound, Version 3.4
- Uncertainty updateds on New York/Connecticut/Rhode Island – Outer NY Bight, eastern Long Island Sound, Block Island Sound, Version 3.4
October 24, 2019
VDatum 4.0.1 is released! Bug fixes on v4.0
- New Jersey - coastal embayment - North, Version 1.2
- New York - The Great South Bay, Version 3.4
- New Jersey/New York/Connecticut – Northern NJ, NY Harbor, western Long Island Sound, Version 3.4
- New York/Connecticut/Rhode Island – Outer NY Bight, eastern Long Island Sound, Block Island Sound, Version 3.4
- Maine/New Hampshire/Massachusetts - Gulf of Maine, Version 2.3 - revised
- Virginia/Maryland/Delaware/New Jersey - Mid-Atlantic Bight shelf, Version 2.2 - revised
- New Jersey - coastal embayment - South, Version 2.1 - revised
August 01, 2019
VDatum 4.0 is released!
- Integration of NADCON 5.0
- New support for xGEOID18b (BETA)
- New support for ERDAS Imagine (.img)
- New support for Southeast Alaska Regional Model
- New support for Ordinary High Water Mark (OHWM) relative to IGLD 1985
- Maine/New Hampshire/Massachusetts - Gulf of Maine, Version 2.3
- New York/Connecticut/Rhode Island – Outer NY Bight, eastern Long Island Sound, Block Island Sound, Version 3.3
- New York - The Great South Bay, Version 3.3
- New Jersey/New York/Connecticut – Northern NJ, NY Harbor, western Long Island Sound, Version 3.3
- Virginia/Maryland/Delaware/New Jersey - Mid-Atlantic Bight shelf, Version 2.2
- New Jersey - coastal embayment - North, Version 1.1
- New Jersey - coastal embayment - South, Version 2.1
August 01, 2018
VDatum 3.9 is released!
- New Support for LWD(IGLD85)
- Region previously titled, "Georgia/South Carolina/North Carolina-Sapelo Island GA to New River NC", has been changed to, "Georgia/South Carolina/North Carolina-Sapelo Island GA to Holden Beach NC", to better illustrate geographic extent.
March 06, 2018
VDatum 3.8 is released!
- New support for xGEOID17b (BETA)
September 07, 2017
VDatum 3.7 is released!
- Florida – South Florida Inland Waterways,
- Florida – South Florida, Naples to Fort Lauderdale FL, and Florida Bay is updated!
- New support for xGEOID16b (BETA)
- New support for GeoTIFF
May 20, 2016
San Francisco Bay Tidal is updated!
October 20, 2015
East Coast TSS and Tidal are updated!
- Maine/New Hampshire/Massachusetts - Gulf of Maine, version 1.3 (only TSS)
- New York/Connecticut/Rhode Island – Outer NY Bight, eastern Long Island Sound, Block Island Sound, Version 2.2(only TSS)
- New York - The Great South Bay, Version 2.2 (only TSS)
- New Jersey/New York/Connecticut – Northern NJ, NY Harbor, western Long Island Sound, Version 2.2 (only TSS)
- New Jersey - coastal embayment, Version 1.2 (only TSS)
- Virginia/Maryland/Delaware/New Jersey - Mid-Atlantic Bight shelf, Version 1.2 (only TSS)
- Delaware - Delaware Bay, Version 2.2 (only TSS)
- Virginia/Maryland/Delaware - Coastal embayment, Version 1.2 (only TSS)
- Virginia/Maryland - Chesapeake Bay, Version 1.2 (only TSS)
- North Carolina - Coastal shelf, Version 1.1: this dataset replace the two smaller dataset NC - Coastal North, version 01 [NCcnorth01_8301_03] and NC - Coastal Central, version 01 [NCccentral01_8301_03] (only TSS)
- North Carolina - Inland waterways and sounds, Version 1.1: this dataset replace the smaller dataset NC - Pamlico Sound, version 01 [NCpamlis01_8301_03] (only TSS)
- Georgia/South Carolina/North Carolina - Sapelo Island GA to New River NC, Version 3.1 (TSS & Tidal)
- Florida/Georgia - Shelf, Fort Lauderdale FL to Sapelo Island GA, Version 4.1 (TSS & Tidal)
- Florida/Georgia - Coastal waterways, Fort Lauderdale FL to Sapelo Island GA, Version 3.1 (TSS & Tidal)
December 22, 2014
East Coast are updated!
- Maine/New Hampshire/Massachusetts - Gulf of Maine, version 1.2
- New York/Connecticut/Rhode Island – Outer NY Bight, eastern Long Island Sound, Block Island Sound, Version 2.1
- New York - The Great South Bay, Version 2.1
- New Jersey/New York/Connecticut – Northern NJ, NY Harbor, western Long Island Sound, Version 2.1
- New Jersey - coastal embayment, Version 1.1
- Virginia/Maryland/Delaware/New Jersey - Mid-Atlantic Bight shelf, Version 1.1
- Delaware - Delaware Bay, Version 2.1
- Virginia/Maryland/Delaware - Coastal embayment, Version 1.1
- Virginia/Maryland - Chesapeake Bay, Version 1.1
- North Carolina - Coastal shelf, Version 1.0: this dataset replace the two smaller dataset NC - Coastal North, version 01 [NCcnorth01_8301_03] and NC - Coastal Central, version 01 [NCccentral01_8301_03];
- North Carolina - Inland waterways and sounds, Version 1.0: this dataset replace the smaller dataset NC - Pamlico Sound, version 01 [NCpamlis01_8301_03];
- Georgia/South Carolina/North Carolina - Sapelo Island GA to New River NC, Version 2.0
- Florida/Georgia - Shelf, Fort Lauderdale FL to Sapelo Island GA, Version 3.0
- Florida/Georgia - Coastal waterways, Fort Lauderdale FL to Sapelo Island GA, Version 2.0
November 03, 2014
Washington - Strait of Juan de Fuca, Version 03 released!
May 09, 2014
We highly recommend that you completely remove the old VDatum (3.2 and earlier)together with all of its transformation grids, and install version 3.3 with its data.
Changes in boundary polygons:
- Virginia/Maryland - Chesapeake Bay
- North Carolina - Pamlico Sound
- North Carolina - Coastal North
- North Carolina - Coastal Central
- Florida – South Florida, Naples to Fort Lauderdale FL, and Florida Bay
- Florida - Perdido, Pensacola and Choctawhatchee Bays
March 21, 2013
Changes in this new release:
- Florida - St. Joseph Bay and the Gulf of Mexico is revised,
- Boundary polygons are updated, especially for the Gulf of Mexico areas
October 23, 2012
GEOID96 released! Rename Geoid transformation grids to the official GEOID model names! For more information about the GEOID96, please visit: //www.ngs.noaa.gov/GEOID/GEOID96/
We have renamed all GEOID transformation grids (gxx) to their official model names (geoidxx).
September 21, 2012
The updated GEOID12A model for converting heights between NAD 83 and the regional vertical datum (NAVD88 in CONUS and Alaska and respective vertical datums in all other regions) is released!
August 1, 2012
The GEOID12 model for converting heights between NAD 83 and the regional vertical datum (NAVD88 in CONUS and Alaska and respective vertical datums in all other regions) is released!
[August 4, 2012] GEOID12 errors found in Louisiana and Mississippi! Click here for more information.
The error areas are inland in Louisiana and Mississippi where GEOID12 heights are believed to be in error by as much as 30 cm (1 foot), with larger errors suspected. In VDatum, GEOID12 errors will affect the transformations between ellipsoidal datums (NAD83, WGS 84 and ITRF) and orthometric datums (NAVD88, NGVD29). Please use the GEOID12A dataset.
June 29, 2012
The tidal transformation dataset of Puerto Rico and U.S Virgin Islands is released!
GEOID09 dataset is updated to cover Hawaii, Guam and Northern Mariana Islands, and Puerto Rico and U.S. Virgin Islands.
April 11, 2012
The tidal transformation dataset of the Florida/Georgia – Fort Lauderdale FL to Sapelo Island GA, version 01 is updated to:
- Florida/Georgia – Shelf, Fort Lauderdale FL to Sapelo Island GA, Version 02,
and
- Florida/Georgia – Coastal waterways, Fort Lauderdale FL to Sapelo Island GA, Version 01.
March 15, 2012
The tidal transformation dataset of the Strait of Juan de Fuca, Washington, version 2 is released!
September 27, 2011
The revised Gulf of Mexico coasts from St. Joseph Bay, FLorida to Mobile Bay, Alabama, and the eastern half of Louisiana/Mississippi coasts arelisted as version 02, including:
- Florida - St. Joseph's Bay and the Gulf of Mexico
- Florida - St. Andrew's Bay and the Gulf of Mexico
- Florida - Perdido, Pensacola and Choctawhatchee Bays
- Florida/Alabama - Gulf of Mexico from Mobile Bay to east of Choctawhatchee Bay
- Alabama - Mobile Bay and Perdido Bay
- Louisiana/Mississippi - Eastern Louisiana to Mississippi Sound
Also, please remove the previous datasets from your VDatum working folder: ALFL_gom01_8301, ALmobile01_8301, FLandrew01_8301, FLjoseph01_8301, FLpensac01_8301 and LAmobile01_8301
August 10, 2011
Update of the Gulf of Mexico coasts from St. Joseph Bay, FLorida to Mobile Bay, Alabama, and the eastern half of Louisiana/Mississippi coasts, including:
- Florida - St. Joseph's Bay and the Gulf of Mexico
- Florida - St. Andrew's Bay and the Gulf of Mexico
- Florida - Perdido, Pensacola and Choctawhatchee Bays
- Florida/Alabama - Gulf of Mexico from Mobile Bay to east of Choctawhatchee Bay
- Alabama - Mobile Bay and Perdido Bay
- Louisiana/Mississippi - Eastern Louisiana to Mississippi Sound
Boundary polygons of the Florida – Apalachicola to Anclote Key dataset is also updated.
June 30, 2011
The Gulf of Maine dataset is released! CONUS coastlines are completed!
April 1, 2011
The western Louisiana and the Texas coasts are released, covering from the western Louisiana coast line to the US/Mexico border !
April 9, 2010
The South East region and Florida coasts are released, covering from North Carolina coast line to Florida - Apalachicola!
October 8, 2009
The GEOID09, a refined hybrid model of the geoid in the United States and other territories, has been repackaged! The previous GEOID09 transformation grid dataset [October 1, 2009] didn't work.
October 1, 2009
The GEOID09, a refined hybrid model of the geoid in the United States and other territories, is incorporated!
April 1, 2009
The Pacific Northwest region is released! The California - North Central is also updated as two areas: Monterey Bay to Morro Bay and the San Francisco Bay Vicinity.
December 17, 2008
Added the Eastern Louisiana -Mississipi, Version 01 dataset in the Gulf Coast. The Louisiana - Lake Fourchon, Version 01 is no longer supported.
The East Coast datasets are updated as below:
| Project Area |
is Updated to |
| New York Harbor - New Jersey, Version 01 | New York Harbor - New Jersey, Version 02 |
| New York - New Jersey - outer New York Bight, Version 02 |
-------deleted-------- |
| New York - The Great South Bay, Version 01 | New York - The Great South Bay, Version 02 |
| Rhode Island - Connecticut - Block Island Sound, Version 01 | Rhode Island - Connecticut - Block Island Sound, Version 02 |
November 04, 2008
Renamed the Connecticut - Long Island Sound, Version 01 dataset (CTlissnd01_8301_03.zip) as New York - The Great South Bay, Version 01 (NYgr8bay01_8301_03.zip).
August 07, 2008
Added GEOID06 transformation grids. Current GEOID06 model is supporting elevation transformations in Alaska only.
June 23, 2008
Added HPGN transformation grids which supporting horizontal transformation from NAD 27 to NAD 83(HARN)
April 02, 2008
Southern California (Morro Bay south to US/Mexico border) released!
October 01, 2007
Three new VDatum project areas released!
- Chesapeake and Delaware Bays
- Mobile Bay to Cape San Blas, FL
- New Jersey to Narragansett Bay, including Long Island Sound
VDatum Software
September 07, 2023
VDatum 4.6.1 is released!
- Enhancements to vertical uncertainty calculations
- Capability to select 1 sigma or 95% Confidence uncertainty output metric.
- Allows user to add additional observational uncertainty (e.g., GNSS observational uncertainty, lidar uncertainty, DEM uncertainty) into the vertical uncertainty calculation.
- Bug fix to resolve vertical gap between tidal grids of the New York/Connecticut/Rhode Island, Outer NY Bight and New Jersey/New York/Connecticut, Northern NJ/NY Harbor sub regions. With the updated tidal grids, the grid version of the New York/Connecticut/Rhode Island, Outer NY Bight sub region has been changed to 4.4
- Bug fix for corrupt TSS in Washington- Coastal sub region
- Bug fix to correct LAS georeferencing issues
- Bug fix to resolve ascii file and UTM issue
- Bug fix to resolve PR/USVI regional model not working on online web application
- Bug fix to resolve MLLW to NGVD29 and NGVD29 to MLLW differing results
- Bug fix to resolve issue when utilizing ascii file conversion in online web application
May 17, 2023
VDatum 4.6 is released!
- Bug fix to allow input of UTM coordinates in American Samoa
- Bug fix associated with wrong UTM zone number in LAS conversion for NAD83(2011) UTM
- Bug fix for consistency between NCAT and VDatum results when utilizing various NAD83 realizations and a particular use of GEOIDs
- Bug Fix to resolve inconsistencies noted between the command line and the GUI while applying a point transformation from WGS84 (transit) to NAD83(2011)/NAVD88.
- Bug fix for consistency between NCAT and VDatum when converting between NAD83(1986) and NAD83(2011)
- Bug fix when using ESRI ASCII Raster Issue and converting IGS14/Geog/MHHW to NAD83(HARN)/State Plane/NAVD88.
November 16, 2022
VDatum 4.5.1 is released!
- Bug fix on WESTCOAST, incorrect vertical reference frame does not match for ITRF (ex ITRF2008 should be ITRF2008 in Vertical Reference)
- Bug fix with issue of Target Horizontal unit selection being disabled once it is SPC.
- Bug fix for incorrect output when similar Ellipsoidal references are provided (ex ITRF2014/ITRF2014 - ITRF2014/ITRF2014) and desiring to specify different Input and Output date position(s).
- Bug fix during SPC transformation from NAD83(2011)/NAVD88 to NAD27/NGVD29, the Northing/Easting values on Target may not be correct if both Source Horizontal and Target Horizontal units are "US_FT".
- Bug fix for West Coast and Chesapeake-DE, for differences between resulting heights with the WEB and PC versions when transforming NAD83/NAD83 to IGS14/LMSL
October 18, 2022
VDatum 4.5 is released!
- Bug fix for converting MLLW US/FT to MLLW Meter and vice versa
- Bug fix on wrong UTM zone number in LAS conversion for NAD83(2011) UTM
- Fixed West Coast VDATUM Tidal to NGVD29 result
- Fixed NAVD88 to EGM2008 HTDP transformation result
- Implement ITRF2014 EPSG code 7912 into the app, and added ITRF2014 in WKT list
- Bug fix on LAS file conversion logic flow issue
- Bug fix for American Samoa GEO To GEO Resolves incorrect output for NAD83(PA11/PACP00)/NAD83(PA11/PACP00) - NAD83(1993)/NAD83(1993)
- Bug fix for CONUS GEO to GEO incorrect Height output NAD83(2011)/LWD - NAD83(2011)/NAD83(2011)
- Bug fix for HAWAII SPC to GEO incorrect Height output NAD83(1993)/W0_USGG2012 - NAD83(PA11/PACP00)/NAD83(PA11/PACP00)
- Bug fix for HAWAII SPC to GEO , UTM, SPC incorrect Height output NAD83(1993)/NAD83(1993) -NAD83(PA11/PACP00)/NAD83(PA11/PACP00) vice versa
- Bug fix for American Samoa SPC to GEO when Us(ft) incorrect height output NAD83(1993)/NAD83(1993) - NAD83(PA11/PACP00)/NAD83(PA11/PACP00) vice versa
- Bug fix for SEAK SPC to GEO when Us/FT/M incorrect height output NAD(83)2011/NAD(83)2011 - IGS08/MHW
- Bug fix for CONUS SPC to GEO when Us/FT/M incorrect height output NAD83(HARN)/NAD83(HARN) - NAD83(2007)/NAD83(2007)
- Bug fix for CONUS SPC to GEO when Us/FT incorrect height output for NAD83(2011)/NAD83(2011) - NAD83(2007)/NAD83(2007)
- Bug fix for PRV SPC to GEO, UTM, SPC incorrect height output for NAD83(2002)/NAD83(2002)- NAD83(2007)/NAD83(2007) VICE VERSA
- Bug fix for AMERICAN SAMOA XYZ to GEO, UTM, SPC incorrect height output forITRF2008/ITRF2008 - NAD83(PA11/PACP00)/NAD83(PA11/PACP00)
- Bug fix for AMERICAN SAMOA XYZ to GEO, UTM incorrect height output (-999999) for ITRF2008/ITRF2008 - NAD83(PA11/PACP00)/ASVD02
- Bug fix for CONUS XYZ to GEO, UTM, SPC incorrect height output (-999999) for ITRF2008/ITRF2008 - NAD27/NGVD 1929
- Bug fix for CONUS XYZ to GEO, UTM, SPC incorrect height output (-999999) for ITRF2008/ITRF2008--NAD83(MA11/MACP00)/GUVD04
- Bug fix for HAWAII XYZ TO UTM & SPC incorrect height output for ITRF2008/ITRF2008 -NAD83(PA11/PACP00)/NAD83(PA11/PACP00)
- Bug fix for HAWAII XYZ TO UTM & SPC incorrect height output for ITRF2008/ITRF2008 -NAD83(PA11/PACP00)/W0_USGG2012
- Bug fix for Puerto Rico - XYZ TO UTM & SPC incorrect height output for I ITRF2008/ITRF2008 - NAD83(2007)/PRVD02/VIVD09
- Incorrect height result when processing combination roadmap of NAD2011/NAD2011 to Tidal for West Coast and Chesapeake-DE, individual transformation components correct, only occurs in combination transformations.
May 11, 2022
VDatum 4.4.2 is released!
- Enhancement on point validation in West Coast regions
- Bug fix on online CSV file conversion
March 24, 2022
VDatum 4.4.1 is released!
- Enhancement on point validation in West Coast regions
- Bug fix on EGM conversion
March 15, 2022
VDatum 4.4 is released!
- Updated Continental United States West Coast Regional Model, that includes Spatially Varying Uncertainty (SVU)
- Changed button text to be "Transform" instead of previous "Convert"
- Updated website to include information on Interpolation usage
- Partial Implementation of new HTDP version 3.4.0 (the following regions have been implemented, with additional to be incorporated in the near future)
- Regional Boundaries
- Region 1: San Andreas fault in central California
- Region 2: southern California
- Region 3: northern California
- Region 4: Pacific Northwest
- Region 5: western CONUS
- Region 6: CONUS
- Region 7: St. Elias, Alaska
- Region 8: south-central Alaska
- Region 9: southeast Alaska
- Region 10: all mainland Alaska
- Regions inserted to make compatible with new initbd.f that contains tectonic plates added in December 2020 (v3.3.0).
- Region 11: placeholder region
- Region 12: placeholder region
- Region 13: placeholder region
- Tectonic plates: All plate boundaries are from Bird 2003 with minor topological corrections. Main four plates included through v3.2.9:
- Region 14: North America (NA)
- Region 15: Pacific (PA)
- Region 16: Caribbean (CA)
- Region 17: Mariana (MA)
- Enhancement on the online layer to keep the previous layer selection after conversion refresh
- Enhancement on particular regional model grids by using IGS08 or IGS14 instead of NAD83_2011
- Reduced displayed SVU to one thousandth
- Bug fix in command line conversion on a single point, when the VDatum app returned an error message "unsupported horizontal datum"
- Bug fix on Full API [region] issue for "Chesapeake/Delaware Bay"
- Bug fix on Chesapeake-Delaware Bay conversion from NAVD88 to Tidal and the reciprocal consistent
- Bug fix on Chesapeake-Delaware Bay US/ft to US/ft
- Bug fix on command line involving null pointer issue when processing single point
- Bug fix on LAS command Line processing, causing incorrect output horizontal coordinates
- Bug fix on incorrect conversion results between EGM and NAVD88
- Updated API documentation [Request URL] for Full API to be "convert" instead of "tidal"
- Bug fix in SPC conversion, unlocking target SPC zone availability
- Bug fix on SPC conversion, correcting easting and northing coordinates associated with U.S. ft conversion
- Bug fix on SPC conversion, incorrect height result when converting SPC to Geographic, NAD83s to MACP00 for GUAM
- Bug fix on SPC conversion, incorrect height result when SPC to Geographic, NAD83s to MACP00 for America Samoa
- Bug fix on SPC conversion, incorrect height result when SPC to Geographic, NAD83s to PACP00 for Hawaii
- Bug fix on SPC conversion, incorrect height result when SPC to Geographic, ASVD02 to MACP00 for America Samoa
- Unable to select NAD83 realizations in Target reference for Hawaii
September 22, 2021
VDatum 4.3 is released! (Updated on September 28, 2021)
- Enhancement on SVU calculation when there was a UTM and State Plane combination
- Bug fix on CSV Uploading Error on Online application
- Bug fix on UTM and State Plane conversions when tidal datums are both source and target
- Bug fix for failed transformations when trying to convert multiple points
- Bug fix for failed transformations when the target datum was selected as IGLD85
- Bug fix on ASCII file conversion issue where transformation failed after 4096 line when xGEOID and EGM Models were involved within roadmap
- Added new feature to output WKT information into log file for file conversion formats
May 19, 2021
VDatum 4.2 is released! (Updated on June 02, 2021)
- Switch of position for "Latitude" and "Longitude" input fields on GUI and Online application for consistency with NCA
- Switch of position for "Northing" and "Easting" input fields on GUI and Online application for consistency with NCAT
- Fixed GeoTiff and IMG conversion issue when units were not meters
- New support for xGEOID20b (BETA)
- New support for GEOID18 Spatially Varying Uncertainty
- New support for varying uncertainty associated with individual hybrid GEOIDs
- Disable GEOID selection in NGVD29 to NAVD88 conversions
- Removed source uncertainty from NGVD29 to NAVD88 conversions to align with uncertainty provided by NCAT and VERTCON 3.0 release 20190601
- Opened up NGVD29 to NAVD88 in Alaska, Local Tide “LT” conversion with PRVD02, VIVD09, ASVD02, NMVD03, and GUVD63 conversion to GUVD04 associated with the VERTCON 3.0 release 20190601
- Bug fixes on ASCII file conversion which is more than 4096 lines
- Bug fixes on Tidal API for WGS84(transit) transformations
- ASCII Files have Spatially Varying Uncertainty in supported Regional Models
- Enhancements on Valid, Non-valid, Non-tidal Layers in the online tools
- Ability to force UTM zones in the command line
- Capability to change names of result file
- Full VDatum API (BETA)
- Modify Vertical uncertainty unit to be the same as Target Vertical unit (meter, ft, us_ft)
- Bug fixes on unit converting issue for NAD27 frame
- Enhancement on GEOID18 gtx
- Bug fixes on Source Horizontal Unit issues on NAD27 frame
- Bug fixes on Feet to meters conversion in NAD27 Geographic to NAD27 State Plane
December 03, 2020
VDatum 4.1.2 is released!
- Fixes NGVD29 unit conversion issue
- New button [Clean up] on Epoch page
- New button [Clear All] on Transformation history window
- Fixes pop-up bug on Epoch window in the package
- Enhancement of reading method on Lidar version-1.4
September 10, 2020
VDatum 4.1.1 is released!
- Enhancement of NAD83(PA11) and NAD83(MA11) to work with State Plane Coordinates
- Fixes Combined Factor issue
- Fixes Feet to Meter conversion issue
- Fixes an issue in online version that caused the GEOID value missing during ASCII Conversion
- Enhancement on GEOID list and selection
- Fixes a broken link bug for AK - Southeast on download page
June 23, 2020
VDatum 4.1 is released!
- Integration of VERTCON
- Integration of Spatially Varying Uncertainty (SVU) on 4 regions below:
- New Jersey - coastal embayment - North, Version 1.2
- New York - The Great South Bay, Version 3.4
- New Jersey/New York/Connecticut – Northern NJ, NY Harbor, western Long Island Sound, Version 3.4
- New York/Connecticut/Rhode Island – Outer NY Bight, eastern Long Island Sound, Block Island Sound, Version 3.4
- Support for GEOID18
- Support for xGEOID19b (BETA)
- Support for ITRF 2014
- Fixes an issue that could cause Well Known Text problem during Geotiff converting
- Fixes missing NoData value issue on Geotiff converting
- Fixes NAD27 SPC zone list issue
- Fixes NADCON5 converting issue
- Fixes PRVD02 converting issue
- Enhancement of xGEOID transform for multiple points
- Fixes command line issue calling HTDP without Epoch details when processing text files
- Fixes NullPointer Error when processing -9999 or No Data values during GeoTiff file conversion
October 24, 2019
VDatum 4.0.1 is released! Bug fixes on v4.0
- Fixes Earth-centered Earth-fixed XYZ conversion issue
- Fixes US Foot conversion issue in SPC conversion
- Fixes EPSG codes applying issue on LiDAR converting
- Fixes a bug on NAD83(MA11)
- Fixes a bug on US Foot conversion issue in EGM and XGEOID
- Enhancement on SEAK
- Updates on Command-line User Guide for Region Number
August 01, 2019
VDatum 4.0 is released!
- Integration of NADCON 5.0
- Added parameter [Region] for integration of NADCON 5.0
- Support for xGEOID18b (BETA)
- Integrateion of ERDAS Imagine (.img) format file
- Support for gtx2img
- Support for Southeast Alaska Regional Model
- Support for Ordinary High Water Mark (OHWM) relative to IGLD 1985
- Updated layers on map for 4.0
- Masked Non Valid
- Non Tidal
- Valid Tidal Transform
- Southeast Alaska
- Updated tidal API for integration of NADCON 5.0
- Added parameter [Region] in request parameter. The default value is "contiguous"
- Use value "NAD83_2011" to replace previous value "NAD83" in [Horizontal Frame Name] and [Vertical Frame Name]
- Bug fixes
- LAS Performance Optimization
- Changed web page tab under "About VDatum" which is currently "Current Events" to "Revision Log"
August 01, 2018
VDatum 3.9 is released!
- Updated all layers on map
- IGLD85 (International Great Lakes Datum)
- Masked Non Valid
- Non Tidal
- Valid Tidal Transform
- Converted Survey to Google Form
- Tidal API by using Geographic Coordinates
- Coordinate Transformation input and output has been set to 10 decimal places for decimal degrees and 5 decimal
places for degrees-minutes-seconds.
- Bug fixes
- ESRI ASCII Raster format file: Fixed CELLSIZE transformation issue
- xGEOID17: Fixed conversion issue from NAVD to xGEOID17b
- HTDP: Fixed conversion issue from ITRFxx to NAVD88
March 06, 2018
VDatum 3.8 is released!
- New support for xGEOID17b (BETA)
- New support for LiDAR 1.4 (.LAS)
- New support for LiDAR LAZ format (On Windows OS)
- New support for LAS Classification field selection
- New support for LAZ Classification field selection (On Windows OS)
- New HTDP feature for File Transform
- Add IGLD85 layers on map
- Enhancement on Geotiff conversion
- Bug fixes
- HTDP epoch selection is offered for conversion NAD83(2011)/NAVD88 to ITRF/EGM
- HTDP epoch selection support for xGEOID16B (BETA) & xGEOID17b (BETA)
- Support EGM1996(WGS84_G1674) when vertical reference is ASVD02, GUVD04, NMVD03, PRVD02 or VIVD09 in VDatum downloadable version
- Fixed "Invalid source SPC zone number [0]" error for NAD1986/NAVD88 in VDatum Web version
- Fixed an issue on retaining GEOID Model for EGM Orthometric Datum in VDatum Web version
- LAS UTM Zone problem with horizontal conversion
September 07, 2017
VDatum 3.7 is released!
- Support transformation on GeoTiff format data file.
- Tidal grids versioning in report.
- LWD information to Datum Tutorials.
- Update to HTDP to support input epoch.
- Added WGS84(G1762) ellipsoidal datum reference frame
- Added new Grid for South Florida Tidal Regions.
- New support for xGEOID16b (BETA)
- New support for GeoTIFF
- Updated Tidal area map
- New feature - Drive to point on map
August 5, 2016
VDatum 3.6.1 is released! A hot fix is added on v3.6!
- Fixed an issue in version 3.6 with the Lidar LAS conversion providing incorrect horizontal coordinates
May 20, 2016
VDatum 3.6 is released!
- New support for GEOID12B
- Phase 1 uncertainty calculation
- 3D shapefile format conversion
- New support for EGM1984, EGM1996, and EGM2008
- Support for additional decimal places in height for LAS format
October 20, 2015
VDatum 3.5 is released!
- Fixed biquadratic algorithm errors.
- Corrected the support of two vertical datums: VIVD09, PRVD02.
December 22, 2014
VDatum 3.4 is released!
- Fixed an issue in LambertTransform that causes errors in NAD27 SPC to geographic conversions.
- Fixed an issue in TranverseMercator that causes errors in UTM to geographic conversions.
- Fixed an issue in ESRI ASC file transform that did not allow converting large files.
- Added field max_records in vdatum.inf that allows users to increase the number of elevation points/records to be read and processed at a time in VDatum File Transform.
- and cosmetic bugs fixed.
May 9, 2014
VDatum 3.3 is released!
We highly recommend that you completely remove the old VDatum (3.2 or earlier) together with all of its transformation grids, and install version 3.3 with its data.
- Increased the number of elevation points read at once to decrease the processing time;
- Added ESRI ASCII Raster Format (.asc),
- Fixed an issue where the last line of a transformation grid wasn't read in memory, which caused abnormal output outside of grid extents (recognized in Maine);
- Fixed IGLD85 model in order to match with NGS Toolkit' IGLD85 tool,
- Fixed SPC' combine factor calculation,
- Fixed an issue where geoid.inf file not found,
- Allowed LiDAR file transform with invalid return numbers (return number = 0, or return number is greater than the maximum return),
- Added Maine (2000) SPC zones, code 1811, 1812 and 1813,
- Separated NAVD88 from other non-CONUS vertical datums,
- and cosmetic bugs fixed.
March 21, 2013
VDatum 3.2 is released!
- Fixed SPC conversions in NAD27 to match with NGS's GPPCGP results,
- Fixed a bug that caused an infinite loop when processing ASCII files,
- Fixed LAS file conversion that involved GEOID transformations,
- Fixed an issue with ellipsoidal transformations,
- Added these capabilities for ASCII file conversions: appending results, skipping header lines,
- Added Scale factor, Convergence and Combined factor for SPC and UTM outputs,
- Added a capability to report Point Conversion,
- and cosmetic bugs fixed.
November 15, 2012
VDatum 3.1 is released!
- Fixed: GEOID transform only worked with NAVD88
- Matched with HTDP 3.2.3: changed NAD83(NSRS2007/CORS96/HARN)to NAD83(2011/2007/CORS96/HARN), equated WGS84(G730) to ITRF91
- Allowed ASCII File Transform to work with different angular formats (dd mm ss.xxxx, dd mm.xxxx or dd.xxxx)
Known issue: SPC conversions in NAD 27 don't match with NGS's GPPCGP results.
October 23, 2012
VDatum 3.0 is released!
- Added State Plane Coordinate transform.
- Added Low Water Datum (LWD) available in non-tidal areas.
- Automatically detect tidal areas in tidal transformation.
- Added GEOID96. Please remove all old GEOID transformation grids (/core/gxx) and replace with the renamed datasets.
- Allowed converting between different GEOID models.
- Added LiDAR (*.LAS) transform. Supports LAS version 1.0, 1.1 and 1.2.
- Allowed excluding NODATA results in File conversion (i.e. removing results of -999999)
- and more
August 1, 2012
VDatum 2.3.5 is released!
- Added GEOID12
- Fixed bug that leads to set horizontal datum as NAD 83(1986)
June 29, 2012
VDatum 2.3.4 is released!
- Removed WGS 72 datum from the ellipsoidal datum lists,
- Set GEOID09 as the default GEOID model,
- Added GUVD04, ASVD02, NMVD03, PRVD02 and VIVD09
- Fixed ITRF92 and WGS 84(G730) transformation parameters.
April 01, 2011
The Beta release for VDatum 3.0. This release automatically detects tidal regions for users' elevation data and returns the appropriate tidal transformation based on the tidal bounding polygons.
Here are some other additional features:
- Horizontal datum transformations have been
extended to allow transformations among ellipsoidal datums,
- ITRF 2008 has been added,
- More choices have been added for input and output coordinates. For example, more coordinate systems (geographic, UTM or geocentric XYZ) , distance/length units (meter, US foot or international foot)
In the next stage, we will focus on making the file conversions run more efficiently, add a command-line mode, and support State Plane Coordinate Systems.
October 26, 2010
version 2.3.3 released!
- Fixed bug in makeGTXname method which caused the program to be unable to work in Unix.
- Fixed bug in checking varea.inf when not needed
September 09, 2010
version 2.3.2 released
- Fixed bug in checking tidal null value in the biquadratic interpolation method, which caused interpolation with null values in tidal grids.
September 08, 2010
version 2.3.1 released!
- Fixed bug in checking tidal null value in GTX, which caused null returns in VERTCON conversions.
April 09, 2010
version 2.3.0 released!
- Added Check for Update function,
- Added the Command Line mode
- Amended the interpolation method used in IGLD85/Gravity model
- Minor bug fixes and error checking.
November 04, 2009
VDatum version 2.2.7 Released!
- Fixed the ArrayIndexOutOfBounds error in the biquadratic interpolation method.
October 28, 2009
VDatum version 2.2.6 Released!
- Fixed the floating point precision which made the program unable to recognize the grid null values (-88.8888).
October 1, 2009
VDatum version 2.2.5 Released!
- Added the GEOID09 model.
- Fixed OS separator for working in different OS environments.
- Changed transformation grid format from Double type to Float type to reduced the data size for faster downloading.
March 27, 2009
VDatum version 2.2.4 Released!
August 07, 2008
VDatum version 2.2.3 Released!
- Added GEOID06 model: supporting elevation conversions in Alaska with the newest Geoid transformation grids.
July 11, 2008
VDatum version 2.1.3 Released!
- Added transformation filters for conversion from tidal datums to IGLD85 and vice versa. The conversions between tidal datums and IGLD85 are prohibited.
July 2, 2008
VDatum version 2.1.2 Released!
- Fixed sign problem with sounding data
June 23, 2008
VDatum version 2.1.1 Released
- Added HPGN transformation grids which supporting horizontal transformation from NAD 27 to NAD 83(HARN).
- Fixed problem with IGLD85 grids.
- Fixed problem with 3-D transformation based on HPGN v2.9 model. Input and output time are set to January 1st of the current year.
- Minor tweaks and GUI improvements.
October 01, 2007
VDatum version 2.0.0 Release!
VDatum 2.0.0 has been released. This version contains significant enhancements and new features, including a new user-friendly interface and productivity features.
