Alan Baker, FDEP, Florida Geological Survey, Professional Geologist II
20150429
SUBSIDENCE INCIDENT REPORTS FOR THE STATE OF FLORIDA - APRIL 2015
vector digital data
Tallahassee, FL
Florida Department of Environmental Protection
State of Florida
http://publicfiles.dep.state.fl.us/otis/gis/data/FGS_SUBSIDENCE_INCIDENTS.zip
sir_apr15
What is a Subsidence Incident? Sinkholes are closed depressions in areas underlain by soluble rock such as limestone, dolostone, gypsum, or salt. Sinkholes form when surface sediments subside into underground voids created by the dissolving action of groundwater in the underlying bedrock. Other subterranean events can cause holes, depressions or subsidence of the land surface that may mimic sinkhole activity. These include subsurface expansive clay or organic layers which compress as water is removed, collapsed or broken sewer and drain pipes or broken septic tanks, improperly compacted soil after excavation work, and even buried trash, logs and other debris. Commonly, a reported depression is not verified by a licensed professional geologist to be a true sinkhole, and the cause of subsidence is not known. Such an event is called a subsidence incident. The Florida Geological Survey maintains and provides a downloadable database of reported subsidence incidents statewide. While this data may include some true sinkholes, the majority of the incidents have not been field-checked and the cause of subsidence is not verified. This dataset is an update to the sir_oct14 layer.
To map the occurrence and spatial distribution of subsidence incidents in Florida.
en
20150429
publication date
As needed
-87.429040
-79.872251
30.983191
24.492815
146143.976563791133.97265664049.758281775190.699531
ISO 19115 Topic Category
geoscientificInformation
United States
karst
subsidence incident reports
florida
sinkholes
geoscientific
Florida
geoscientificInformation
None
Important - Please contact FGS at 850-617-0301 for more information prior
to using the sinkhole data.
Subsidence Incident Reports Disclaimer:
This geologic data was developed by the Florida Department of Environmental
Protection (FDEP) - Florida Geological Survey (FGS) to carry out agency
responsibilities related to management, protection, and development of
Florida's natural resources. Although efforts have been made to make the
information accurate and useful, the FDEP/FGS assumes no responsibility for
errors in the information and does not guarantee that the data are free from
errors or inaccuracies. Similarly FDEP/FGS assumes no responsibility for the
consequences of inappropriate uses or interpretations of the data. As such,
these digital data are distributed on an "as is" basis and the user assumes
all risk as to their quality, the results obtained from their use, and the
performance of the data. FDEP/FGS bears no responsibility to inform users
of any changes made to this data. The data in this database was obtained from
a variety of sources. Subsidence incident records listed in this database,
in many instances, have not been field checked or verified by FDEP/FGS
professional geologists. Additionally, the locations of many of these
subsidence incidents have not been verified. As such, anyone using this data
is advised that precision implied by the data may far exceed actual
precision.
Comments on this data are invited and FDEP/FGS would appreciate that
documented errors be brought to staff attention. The development of
these data sets represents a major investment of staff time and effort.
As a professional responsibility, we expect that the FDEP/FGS will
receive proper credit when you utilize these data sets. Further, since
part of this data was developed and collected with U.S. Government or
State of Florida funding, no proprietary rights may be attached to it
in whole or in part, nor may it be sold to the U.S. Government or the
Florida State Government as part of any procurement of products or
services.
FDEP, Florida Geological Survey
Clint Kromhout, Alan Baker
Professional Geologist II
mailing and physical address
3000 Commonwealth Blvd., Suite 1
Tallahassee
FL
32399
US
850-617-0332, 850-617-0337
Clint.Kromhout@dep.state.fl.us, Alan.Baker@dep.state.fl.us
FDEP, Florida Geological Survey
Clint Kromhout, Alan Baker
Professional Geologist II
mailing and physical address
3000 Commonwealth Blvd., Suite 1
Tallahassee
FL
32399
US
850-617-0332, 850-617-0337
Clint.Kromhout@dep.state.fl.us, Alan.Baker@dep.state.fl.us
FDEP, Florida Geological Survey
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552
SHAPEFILE
GeoPlan relied on the integrity of the attribute information within
the original data.
This data is provided 'as is'. GeoPlan relied on the integrity
of the original data layer's topology
This data is provided 'as is' by GeoPlan and is complete to our
knowledge.
This data is provided 'as is' and its horizontal positional accuracy
has not been verified by GeoPlan
This data is provided 'as is' and its vertical positional accuracy
has not been verified by GeoPlan
Unknown
FDEP
Spatial and Attribute Information
publication date
Data added in the GIS library and will be updated monthly.
20150429
Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
mailing and physical address
2600 Blair Stone Rd MS 6520
Tallahassee
FL
32399-2400
US
GIS.Librarian@dep.state.fl.us
---------------------------------------------------------------------------------------
The GeoPlan Center took the following steps during the QA/QC process:
- Downloaded the dataset from FDEP on 8/2/2017 using this link:
http://geodata.dep.state.fl.us/
- Dataset from the FDEP website was originally downloaded in a file
geodatabase and in NAD_1983_HARN_Florida_GDL_Albers.
- Define Projection tool was used to alter the projection information to
conform with FGDL's standardized projection
- DESCRIPT field added and calculated using "SIR REFERENCE
NUMBER" and the REF_NUM field. Any records with no data
in the REF_NUM field had their DESCRIPT field calculated
as 'NO DESCRIPT AVAILABLE'
- FGDLAQDATE field added based on the date the dataset was downloaded
from the source.
- The longest record for each field was calculated and field character
lengths were shortened to the appropriate shortest length possible.
- Uppercased fields and records in the dataset.
- Layer name changed from FGS_SUBSIDENCE_INCIDENTS to
sir_apr15.shp.
Note:
After define projection was done, the layer was compared to the
prior layer to see if the placement of points is close to the
prior locations. In some cases, there were points close to the
prior locations with shifts of about 1 meter. However, in other
cases much more drastic shifts were noted, sometimes nearly 40
meters. This may represent a greater change in the locational
information for the point itself.
GeoPlan used standard methods for processing this layer, so
any changes in point source locations may be attributed to
data provided by the source.
Note:
Because the dataset was downloaded in a file geodatabase format,
and datasets are updated as shapefiles, field names were
truncated or changed. Below is a list of field name changes:
Reference Number --> REF_NUM
Date Revised --> DATE_REV
Date of Reported Event --> DATE_ADD
Verified Sinkhole --> TRUE_SINK
Longitude Decimal Degrees --> LONGDD
Latitude Decimal Degrees --> LATDD
County --> COUNTY
PLSS Township --> TWNSHP
Township Cardinal Direction --> TWNSHP_D
PLSS Range --> RANGE
Range Cardinal Direction --> RANGE_D
PLSS Sections --> SECTION
Quarter Section 1 --> QTRSECT1
Quarter Section 2 --> QTRSECT2
Accuracy --> ACCURACY
Source of Report --> RPT_SOURCE
Owner's City --> OCITY
Owner's Zip Code --> OZIP
Dimensions --> SIZDIM
Shape --> SINSHAPE
Length (ft) --> SINLNGTH
Width (ft) --> SINWIDTH
Depth (ft) --> SINDEPTH
Slope of Sides --> SLOPE
Water Visible --> WATSIN
Water Below Land Surface (ft) --> WATBLS
Limestone Visible --> LIMVIS
Cave Visible --> CAVVIS
Subsidence Rate --> SUBRATE
Property Damage --> PROPDAM
Repair Status --> REPAIR_S
Drainage Structures Present --> DRAINSTR
Soil Type --> SOILTYPE
Comments --> COMMENTS
Additional Comments --> COMMENTS_2
DOCUMENT_LINK --> DOC_LINK
GeoPlan
20170822
Metadata imported.Y:\meta\sir_apr15.xml2017100617132500
Vector
Entity point
3802
SimplePointFALSE0FALSEFALSE
coordinate pair
0.002048
0.002048
meters
Albers Conical Equal Area24.00000031.500000-84.00000024.000000400000.0000000.000000
D North American 1983 HARN
GRS 1980
6378137.0
298.257222101
Albers Conical Equal AreaHPGNGeodetic Reference System 806378137.000000298.257222GCS_North_American_1983_HARN
Explicit elevation coordinate included with horizontal coordinates1.000000
SIR_APR15
SIR_APR15.DBF
FDEP - FGS
Feature Class0
FIDFIDOID400Internal feature number.ESRISequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
ShapeGeometry000
REF_NUM
FGS/FSRI Assigned Reference Number
FDEP - FGS
REF_NUMString10
DATE_REV
Date information revised in the database
FDEP - FGS
DATE_REVDate8
EVENT_DATE
Date on which the feature was first observed and documented.
FDEP - FGS
EVENT_DATEDate8
TRUE_SINK
Is the event a true sinkhole?
FDEP - FGS
TRUE_SINKString2
LONGDD
Longitude in Decimal Degrees
FDEP - FGS
LONGDDNumber198
LATDD
Latitude in Decimal Degrees
FDEP - FGS
LATDDNumber198
COUNTY
County name
FDEP - FGS
COUNTYString15
TWNSHP
Township
FDEP - FGS
TWNSHPNumber10
TWNSHP_D
Township Direction
FDEP - FGS
TWNSHP_DString2
RANGE
Range
FDEP - FGS
RANGENumber10
RANGE_D
Range Direction
FDEP - FGS
RANGE_DString2
SECTION
Section
FDEP - FGS
SECTIONNumber10
QTRSECT1
Quarter Section 1
FDEP - FGS
QTRSECT1String3
QTRSECT2
Quarter Section 2
FDEP - FGS
QTRSECT2String3
ACCURACY
Accuracy
FDEP - FGS
ACCURACYString10
RPT_SOURCE
Entity / organization that first reported the subsidence incident feature, if applicable
FDEP - FGS
RPT_SOURCEString55
OCITY
Owner's city at time of occurrence
FDEP - FGS
OCITYString20
OZIP
Owner's zip code at time of occurrence
FDEP - FGS
OZIPNumber10
SIZDIM
How were dimensions of subsidence feature determined (E=estimated, M=Measured)
FDEP - FGS
SIZDIMString2
SINSHAPE
Shape of subsidence feature (E=elliptical, C=circular)
FDEP - FGS
SINSHAPEString2
SINLNGTH
Length (longest side) of feature (FT)
FDEP - FGS
SINLNGTHNumber198
SINWIDTH
Width (shortest side) of feature (FT)
FDEP - FGS
SINWIDTHNumber198
SINDEPTH
Depth (ground surface to bottom) of feature (FT)
FDEP - FGS
SINDEPTHNumber198
SLOPE
Side slope angle of event (measured angle of incline)
FDEP - FGS
SLOPENumber10
WATSIN
Is water visible in the feature?
FDEP - FGS
WATSINString2
WATBLS
Ground surface to top of water in feature (FT)
FDEP - FGS
WATBLSNumber10
LIMVIS
Is limestone visible in feature?
FDEP - FGS
LIMVISString2
CAVVIS
Is a cave or fracture visible in feature?
FDEP - FGS
CAVVISString2
SUBRATE
What is the rate of subsidence of feature? (Lookup table - SUBRATE worksheet)
FDEP - FGS
SUBRATEString2
PROPDAM
Was there any structure damage associated with the feature?
FDEP - FGS
PROPDAMString2
REPAIR_S
Repair Status
FDEP - FGS
REPAIR_SString15
DRAINSTR
Are there any drainage structures within close distance to feature?
FDEP - FGS
DRAINSTRString35
SOILTYPE
Soil type where the feature occurred
FDEP - FGS
SOILTYPEString70
COMMENTS
Comments pertaining to feature or updates
FDEP - FGS
COMMENTSString254
COMMENTS_2
More comments pertaining to feature or updates
FDEP - FGS
COMMENTS_2String254
DESCRIPT
GeoPlan added field based on "SIR REFERENCE NUMBER: " & [REF_NUM]
GeoPlan
DESCRIPTString30
FGDLAQDATE
GeoPlan added field based on the date acquired from the source
GeoPlan
FGDLAQDATEDate8
AUTOID
Unique ID added by GeoPlan
GeoPlan
AUTOIDNumber10
Florida Geographic Data Library (FGDL)
mailing address
431 Architecture PO Box 115706
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Florida
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United States
Web site: http://www.fgdl.org
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Mailing list for FGDL: http://www.fgdl.org/fgdl-l.html
DOWNLOADABLE DATA
The Florida Geographic Data Library is a collection of Geospatial Data
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Scale is an important factor in data usage. Certain scale datasets
are not suitable for some project, analysis, or modeling purposes.
Please be sure you are using the best available data.
1:24000 scale datasets are recommended for projects that are at the
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1:100000 scale datasets are recommended for projects that are at the
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scale and accuracy, see our webpage at:
http://geoplan.ufl.edu/education.html
0.102
0.000
This data is intended for use with a Geographic Information Systems or Remote Sensing software package.
20150708
Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
REQUIRED: The person responsible for the metadata information.
mailing and physical address
2600 Blair Stone Rd MS 6520
Tallahassee
FL
32399-2400
US
GIS.Librarian@dep.state.fl.us
REQUIRED: The telephone number by which individuals can speak to the organization or individual.
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
http://www.esri.com/metadata/esriprof80.html
ESRI Metadata Profile
enhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile
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