Parent Layer:
NUISANCE & HARMFUL ALGAE
Name: Cyanobacteria: Presence of Blooms
Display Field: RegionalUnitID
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: This data was derived as part of the Overall Assessment of the State of Nearshore Waters. Cyanobacteria, a blue-green algae, occurs naturally in freshwater but an overgrowth can result in a harmful algae bloom that can release toxins dangerous to human and ecosystem health. Cyanobacteria is assessed by calculating the extent of cyanobacteria blooms detected within a Regional Unit, using satellite composites. An additional flag is assigned to Regional Units where cyanobacteria is a source of high stress, as it is considered a serious concern. Thresholds for severity are based on World Health Organization guidelines.Satellite composites are from the National Oceanic & Atmospheric Association (NOAA) Harmful Algal Bloom Monitoring program.LAKE ERIE: 10-day composite images from the MODIS satellite, with Cyanobacteria Index algorithm applied; June - October, 2012-2017LAKE ONTARIO: 10-day composite images from the MODIS satellite, with Cyanobacteria Index algorithm applied; June - October, 2016-2018LAKE SUPERIOR: 7-day composite images from the Sentinel 3Asatellite, with Cyanobacteria Index algorithm applied; June - October, 2019Points represent the Regional Unit centroid.Low Stress: no bloom; High Stress: bloom
Copyright Text: Environment and Climate Change Canada - Strategic Policy Branch - RDGO; National Oceanic & Atmospheric Association (NOAA) Harmful Algal Bloom Monitoring program
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Supported Query Formats: JSON, geoJSON
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Use Standardized Queries: true
Supports Datum Transformation: true
Extent:
XMin: 439441.2905000001
YMin: -704602.2919999994
XMax: 1611914.446999997
YMax: 15906.425200000405
Spatial Reference: 3978
(3978)
Drawing Info:
Renderer:
Unique Value Renderer:
Field 1: Cyanobacteria
Field 2: null
Field 3: null
Field Delimiter: ,
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UniqueValueInfos:
-
Value: No bloom
Label: No bloom
Description:
Symbol:
-
Value: Bloom
Label: Bloom
Description:
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-
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Label: No data
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Labeling Info:
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
-
OBJECTID
(
type: esriFieldTypeOID, alias: OBJECTID
)
-
Shape
(
type: esriFieldTypeGeometry, alias: Shape
)
-
RegionalUnitID
(
type: esriFieldTypeString, alias: Regional Unit ID, length: 254
)
-
AssessmentYear
(
type: esriFieldTypeInteger, alias: Assessment Year
)
-
Cyanobacteria
(
type: esriFieldTypeString, alias: Cyanobacteria, length: 25
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-
BloomYear
(
type: esriFieldTypeString, alias: Bloom Years, length: 50
)
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DataSource
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type: esriFieldTypeString, alias: Source of Data, length: 50
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AssessmentCategory
(
type: esriFieldTypeString, alias: Assessment Category, length: 50
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NearshoreAssessment
(
type: esriFieldTypeString, alias: Nearshore Assessment, length: 25
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