Invasive Plants - Lake Tahoe [ds2774]

SDE Feature Class

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Tags
invasives, lake tahoe, invasive species, Milfoil, fragments, infestations, pondweed, Eyes on the Lake, Aquatic invasive species, Aquatic invasive plants, Eurasian watermilfoil, Curlyleaf pondweed, Lake Tahoe, Lake Tahoe Basin


Summary

Eyes on the Lake (EOL) is a volunteer, citizen science program led by the League to Save Lake Tahoe, in partnership with the Tahoe Resource Conservation District and the Tahoe Regional Planning Agency, as well as other organizations that make up the Lake Tahoe Aquatic Invasive Species Program. The two main targets of the Eyes on the Lake program are Eurasian watermilfoil and curlyleaf pondweed. Both are already established in many locations throughout Lake Tahoe and are difficult and expensive to control. These aquatic invasive plants cause clarity loss, harm native species, and pose a significant threat to the ecology of the Lake. The Aquatic Invasive Plants in Lake Tahoe (2013-2017) map utilizes Eyes on the Lake data collected from 2013-2017 and data published in the University of Nevada, Reno's (UNR) Implementation Plan for the Control of Aquatic Invasive Species within Lake Tahoe. The map also includes other layers based off information collected from other partner agencies throughout the Tahoe Basin.

Description

This dataset was created to provide data on locations of the aquatic invasive plants Eurasian watermilfoil and curlyleaf pondweed to non-profits and government agencies working to address aquatic invasive species in the Lake Tahoe Basin, so that any new infestations of these plants can be identified and addressed quickly before they are able to spread to other parts of the Lake.

Credits

Use limitations

Extent

West -120.195804 East -119.931402
North 39.352235 South 38.928167

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Place keywords Lake Tahoe, Lake Tahoe Basin, California

Theme keywords Citizen science, Aquatic invasive plants, Lake Tahoe

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Citation

Title Invasive Plants - Lake Tahoe [ds2774]
Publication date 2019-01-1000:00:00


Presentation formats * digital map


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Citation Contacts

Responsible party
Organization's name League to Save Lake Tahoe
Contact's role originator


Contact information
Address
Type both
Delivery point 2608 Lake Tahoe Boulevard
City South Lake Tahoe
Administrative area California
Postal code 96150

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Responsible party
Individual's name Zack Bradford
Organization's name League to Save Lake Tahoe
Contact's position Natural Resources Manager
Contact's role point of contact


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Resource Details

Dataset languages * English(UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format


Status planned
Spatial representation type * vector


* Processing environment Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270


ArcGIS item properties
* Name Invasive Plants - Lake Tahoe [ds2774]
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

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Extents

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -120.195804
* East longitude -119.931402
* North latitude 39.352235
* South latitude 38.928167
* Extent contains the resource Yes

Temporal extent
Beginning date 2013-06-0200:00:00
Ending date 2018-12-1000:00:00

Extent in the item's coordinate system
* West longitude -16861.253600
* East longitude 5907.191700
* South latitude 101372.742600
* North latitude 148485.784700
* Extent contains the resource Yes

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Resource Points of Contact

Point of contact
Individual's name Zack Bradford
Organization's name League to Save Lake Tahoe
Contact's position Natural Resources Manager
Contact's role point of contact


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Resource Maintenance

Resource maintenance
Update frequency annually


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Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 8.8(9.3.1.2)


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Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS2774_20190111
* Object type point
* Object count 0

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ArcGIS Feature Class Properties
Feature class name DS2774_20190111
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE

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Lineage

Lineage statement
Combined the four shapefiles provided by Zack Bradford for Milifoil fragments, milifoil infestations, pondweed fragments, and pondweed infestations
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Geoprocessing history

Process
Date 2019-01-1113:11:11
Tool location c:\program files (x86)\arcgis\desktop10.6\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2019-01-1113:11:32
Tool location c:\program files (x86)\arcgis\desktop10.6\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


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Distribution

Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location https://www.wildlife.ca.gov/Data/BIOS
Function performed information

Online source
Location ftp://ftp.wildlife.ca.gov/BDB/GIS/BIOS/Public_Datasets/2700_2799/ds2774.zip
Function performed download

Online source
Location https://www.arcgis.com/home/webmap/viewer.html?webmap=e0320c0c32f241459029060a7881a0bc&extent=-120.6604,38.8132,-119.3146,39.3526
Function performed download

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Fields

Details for object DS2774_20190111
* Type Feature Class
* Row count 0


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
Esri
* Description of values
Sequential unique whole numbers that are automatically generated.


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Field Shape
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
Esri
* Description of values
Coordinates defining the features.


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Field Date_
* Alias Date_
* Data type Date
* Width 8
* Precision 0
* Scale 0
Field description
Date of observation
HideFieldDate_


Field Activity
* Alias Activity
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Activity that the observer was engaged in at the time of the observation
HideFieldActivity


Field Location
* Alias Location
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
General location where the observation occurred
HideFieldLocation


Field Latitude
* Alias Latitude
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Latitude for the location of the observation, based off GPS, approximation, or dropping a pin on a map
HideFieldLatitude


Field Longitude
* Alias Longitude
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Longitude for the location of the observation, based off GPS, approximation, or dropping a pin on a map
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Field Plant
* Alias Plant
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Eurasian watermilfoil or curlyleaf pondweed
HideFieldPlant


Field Type_
* Alias Type_
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Whether the plant was attached to the substrate, reported as an Infestation, or floating on the surface or a fragment on the beach, rocks, etc., reported as a Fragment
HideFieldType_


Field Substrate
* Alias Substrate
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The dominant substrate present where the observation occurred
HideFieldSubstrate


Field Natives
* Alias Natives
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Any native aquatic plants observed
HideFieldNatives


Field Clams
* Alias Clams
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Whether the observer noticed any Asian clams or Asian clam shells (Asian clams are the only non-aquatic-invasive-plant that Eyes on the Lake volunteers are asked to report on)
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Metadata Details

* Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata * dataset
Scope name * dataset


* Last update 2019-01-11


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2019-01-1113:11:09
Last modified in ArcGIS for the item 2019-01-1113:11:28


Automatic updates
Have been performed Yes
Last update 2019-01-1113:11:28


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Metadata Contacts

Metadata contact
Individual's name Zack Bradford
Organization's name League to Save Lake Tahoe
Contact's position Natural Resources Manager
Contact's role point of contact


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Metadata Maintenance

Maintenance
Update frequency annually


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