Frequently-anticipated questions:
Title: Storm_STORM_sw_Storm_Drainage
Abstract: Inventoried channels in Mecklenburg County
- How should this data set be cited?
Charlotte-Mecklenburg Storm Water Services Agency, Charlotte, NC
- What geographic area does the data set cover?
West_Bounding_Coordinate: -81.011864
East_Bounding_Coordinate: -80.625202
North_Bounding_Coordinate: 35.484024
South_Bounding_Coordinate: 35.015495
- What does it look like?
- Does the data set describe conditions during a particular time period?
Calendar_Date: 2004 forward
Currentness_Reference: publication date
- What is the general form of this data set?
Geospatial_Data_Presentation_Form: vector digital data
- How does the data set represent geographic features?
- How are geographic features stored in the data set?
This is a Vector data set. It contains the following vector data types (SDTS terminology):
- What coordinate system is used to represent geographic features?
The map projection used is Lambert Conformal Conic.
Projection parameters:
Standard_Parallel: 34.333333
Standard_Parallel: 36.166667
Longitude_of_Central_Meridian: -79.000000
Latitude_of_Projection_Origin: 33.750000
False_Easting: 2000000.002617
False_Northing: 0.000000
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000000
Ordinates (y-coordinates) are specified to the nearest 0.000000
Planar coordinates are specified in survey feet
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 0.000122
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
- How does the data set describe geographic features?
Storm_STORM_sw_Storm_Drainage
len_1
Internal feature number. (Source: ESRI)
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry. (Source: ESRI)
Coordinates defining the features.
DS_ID
Down Stream ID (Source: WISE)
Auto populated down stream ID
MEDIA_LINK
Link to down stream picture (Source: City of Charlotte Storm Water)
Filepath for pictures
DRY_WEATHE
Whether channel flows during dry weather (Source: City of Charlotte Storm Water)
|
Value
|
Definition
|
|
Yes
|
Yes channel flows during dry weather
|
|
No
|
No channel does not flow during dry weather
|
Sequential unique whole numbers that are automatically generated.
US_ID
Up Stream ID (Source: WISE)
Auto populated up stream ID
CH_SHAPE
Channel shape (Source: City of Charlotte Storm Water)
|
Value
|
Definition
|
|
Trapezoid
|
Trapezoid shape channel
|
|
Irregular
|
Irregular shape channel
|
|
Rectangular
|
Rectangular shape channel
|
|
U-Shaped
|
U-Shaped channel
|
|
V-Shaped
|
V-Shaped channel
|
|
N/A
|
Not Applicable
|
|
Unknown
|
Unknown shape
|
Coordinates defining the features.
Shape
Feature geometry. (Source: ESRI)
Coordinates defining the features.
STR_NAME
Stream Name (Source: City of Charlotte Storm Water)
Stream name
FUNCTION_
Whether the channel is functioning (Source: City of Charlotte Storm Water)
|
Value
|
Definition
|
|
Yes
|
Yes the channel is functioning
|
|
No
|
No the channel is not functioning
|
INV_DATE
Date of inventory collection (Source: City of Charlotte Storm Water)
Date of inventory collection
Enabled
Does the channel flow during dry weather? (Source: City of Charlotte Storm Water)
INV_BY
Person who collected feature (Source: City of Charlotte Storm Water)
|
Value
|
Definition
|
|
Ackerman
|
|
|
Alzate
|
|
|
Ballard
|
|
|
Belcher
|
|
|
Bird
|
|
|
Bissette
|
|
|
Bost
|
|
|
Broome
|
|
|
BrownSC
|
|
|
CampbellBR
|
|
|
Clapp
|
|
|
ColeB
|
|
|
Crigler
|
|
|
Deans
|
|
|
Dressler
|
|
|
Drzewiecki
|
|
|
EdwardsJE
|
|
|
Ganzert
|
|
|
Gladys
|
|
|
Gunter
|
|
|
Hardison
|
|
|
Honeycutt
|
|
|
HudsonJS
|
|
|
Knight
|
|
|
Mamar
|
|
|
MartinMW
|
|
|
McCullough
|
|
|
MeckCty
|
|
|
MillerGK
|
|
|
New Insp
|
New Inspector (add name to domain)
|
|
Pilipovic
|
|
|
Rockwell
|
|
|
RogersJW
|
|
|
Washington
|
|
|
WillisSL
|
|
|
Woods
|
|
|
Contract01
|
Contract Crew 01
|
|
Contract 02
|
Contract Crew 02
|
|
Contract 03
|
Contract Crew 03
|
|
Contract 04
|
Contract Crew 04
|
NOTES
Notes referring to feature (Source: City of Charlotte Storm Water)
Notes
CHAN_ID
Channel ID (Source: WISE)
Auto populated Channel ID
CH_MAT
Channel Material (Source: City of Charlotte Storm Water)
|
Value
|
Definition
|
|
Earthen
|
|
|
Grass
|
|
|
Paved
|
|
|
RipRap
|
|
|
Grouted RipRap
|
|
|
Other
|
|
|
N/A
|
|
DEPTH
Depth of feature (Source: City of Charlotte Storm Water)
Depth of feature
WIDTH_TOP
Width on top of feature (Source: City of Charlotte Storm Water)
Width of top of feature
WIDTH_BTTM
Width on bottom of feature (Source: City of Charlotte Storm Water)
Width of bottom of feature
Chan_ID
Channel ID (Source: WISE)
Auto populated Channel ID
ENABLED
Feature geometry. (Source: ESRI)
Coordinates defining the features.
CH_MAT_OTH
Material not specified in domain (Source: City of Charlotte Storm Water)
Other channel material
MEDIA_LI_1
Link to up stream picture (Source: City of Charlotte Storm Water)
Filepath for pictures
STD_CMMNT
Standard Comments (Source: City of Charlotte Storm Water)
|
Value
|
Definition
|
|
No access to structure
|
(structures) Unable to physically access structure - minimal attributes input
|
|
Pipe not followed
|
(pipestubs) Pipe not followed to next structure/juntion
|
|
Next structure not found
|
(pipestubs) Next structure not found
|
|
Channel data estimated
|
(channels) Large stream dimensions estimated
|
- Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Who also contributed to the data set?
- To whom should users address questions about the data?
Catherine Crigler
City of Charlotte
Inventory Coordinator
600 E 4th St
Charlotte, NC 28202
704-336-5735 (voice) or email: ccrigler@charlottenc.gov
Create inventory network to track assets and use with Storm Water projects
- From what previous works were the data drawn?
- How were the data generated, processed, and modified?
(process 1 of 4)
Locate structures with GPS technology and enter structure attributes and linear features using mobile GIS software.
Data sources used in this process:
- Server=isp-sde-01.isp.lcl; Service=5151; User=SDE; Version=sde.DEFAULT
(process 2 of 4)
Dataset copied.
Data sources used in this process:
- Server=virt-sde-01; Service=5162; Database=storm; User=storm; Version=STORM.Storm_edit
(process 3 of 4)
Metadata imported.
Data sources used in this process:
- H:\Metadata\sw_drainage.xml
(process 4 of 4)
Metadata imported.
Data sources used in this process:
- H:\Metadata\sw_drainage.xml
- What similar or related data should the user be aware of?
- How well have the observations been checked?
We try to minimize the room for input error by creating domains and automatically populated fields. However, there is still room for error and we check all field data for missing attributes and logical errors.
- How accurate are the geographic locations?
sub-meter GPS accuracy for 2004 and beyond
- How accurate are the heights or depths?
based on 2002 DTM (10 ft cells)
- Where are the gaps in the data? What is missing?
The inventory collection is ongoing with a goal to recapture the pre-2004 data and complete all remaining inventory within the city limits. After initial completion, the inventory effort will continue in order to collect data on new construction, repaired systems, and annexed areas.
- How consistent are the relationships among the observations, including topology?
All data with an Inventory Date of 2004 and beyond has been collected with sub-meter GPS equipment and reviewed for locational accuracy against aerial photography. All data with an Inventory Date before 2004 was located manually and not all of the data has been checked against current aerial photography.
Are there legal restrictions on access or use of the data?
- Who distributes the data set? (Distributor 1 of 1)
Catherine Crigler
City of Charlotte
Inventory Coordinator
600 E 4th St
Charlotte, NC 28202
704-336-5735 (voice)
- What's the catalog number I need to order this data set?
Downloadable Data
- What legal disclaimers am I supposed to read?
In no event shall the City of Charlotte and/or Mecklenburg County Government be liable for any special, indirect, or loss of use, data or profits, whether in an action of contract, negligence or other tortuous action, arising out of or in connection with the use or performance of software, documents, provision of, or failure to provide services or information available from this data.
- How can I download or order the data?
- Availability in digital form: CharMeck.org/stormwater
Dates:
Last modified: 09-Mar-2011
Metadata author:
Samantha Willis, GIS Analyst, City of Charlotte, E&PM, Storm Water Services Agency
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:
· <http://www.esri.com/metadata/esriprof80.html>
· <http://www.esri.com/metadata/esriprof80.html>
· <http://www.esri.com/metadata/esriprof80.html>
Generated by mp version 2.9.6 on Wed Mar 09 12:21:04 2011