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Metadata: Storm Water Infrastructure Channels/Drainage
Frequently-anticipated questions:

What does this data set describe?

Title: Storm_STORM_sw_Storm_Drainage

Abstract: Inventoried channels in Mecklenburg County

  1. How should this data set be cited?

Charlotte-Mecklenburg Storm Water Services Agency, Charlotte, NC

  1. 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

  1. What does it look like?
  2. Does the data set describe conditions during a particular time period?

Calendar_Date: 2004 forward

Currentness_Reference: publication date

  1. What is the general form of this data set?

Geospatial_Data_Presentation_Form: vector digital data

  1. 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):

      • String (18822)
    • 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

  1. 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)

Value

Definition

Yes

 

No

 

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 produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
  2. Who also contributed to the data set?
  3. 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

 


Why was the data set created?

Create inventory network to track assets and use with Storm Water projects


How was the data set created?

  1. From what previous works were the data drawn?
  2. 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
  1. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. 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.

  1. How accurate are the geographic locations?

sub-meter GPS accuracy for 2004 and beyond

  1. How accurate are the heights or depths?

based on 2002 DTM (10 ft cells)

  1. 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.

  1. 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.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

  1. 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)

  1. What's the catalog number I need to order this data set?

Downloadable Data

  1. 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.

  1. How can I download or order the data?
    • Availability in digital form: CharMeck.org/stormwater

Who wrote the metadata?

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