Layers:

Layer: Flow-Ecology Stream Classes (0)

Name: Flow-Ecology Stream Classes

Display Field: GNIS_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Southern California Coastal Water Research Project (SCCWRP) applied the Ecological Limits of Hydrologic Alteration (ELOHA) framework to develop regional (Soutern California) flow-ecology relationships and targets based on responses in the benthic macroinvertebrate community. SCCWRP developed a statewide classification system using a two-step approach: 1 - cluster streams into 7 classes based on differences in winter precipitation, geology, soil characteristics, and mean watershed elevation; 2 - used flow data from a subset of streams with gauge information to test and refine stream classes determine which hydrologic variables best separate streams into respective classes. SCCWRP then collaborated with UC Davis to come up with 9 stream classes.

Copyright Text: State Water Resources Control Board, Southern California Coastal Water Research Project, Surface Water Ambient Monitoring Program, California Department of Fish and Wildlife, Aquatic Bioassessment Laboratory, University of California Davis, Stormwater Monitoring Coalition, Perennial Streams Assessment

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Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:
XMin: -124.402452313347
YMin: 32.5401068226421
XMax: -114.65551173247201
YMax: 42.00744320550049
Spatial Reference: 4269  (4269)



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Field 3: null
Field Delimiter: ,
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Default Label: null
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• Value: 1
  Label: (SM) Snowmelt
  Description: Large spring snowmelt pulse (~May 24) Very high seasonality index Extreme low flows (<10th percentile) Sep - Feb High elevation catchments (> 2,293 m), major snow influence
  Symbol:
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  Color: [255, 255, 0, 255]
  Width: 1
• Value: 2
  Label: (HSR) High-volume snowmelt and rain
  Description: Spring snowmelt pulse (~May 4) High seasonality but larger winter storm contributions Retain high baseflow throughout summer Bimodal snow - rain hydrograph • Mid-elevation catchments (1,126 - 2,293 m), large contributing area (>2,144 km2 ) not underlain by volcanic geology [high stream density (>0.65 km/km2 ), mild winter temperatures (Jan temp >-5Co)] OR • Low elevation (<1,125 m) with very large contributing area (>15,420 km2) and high clay content soils (>17% clay)
  Symbol:
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  Color: [0, 0, 255, 255]
  Width: 1
• Value: 3
  Label: (LSR) Low-volume snowmelt and rain
  Description: Transition between SM and HSR Bimodal snow - rain hydrograph driven by spring snowmelt pulse and winter rain • Mid-elevation catchments with limited area (<2,144 km2) [low winter temperatures (Jan temp <-5Co), high stream density (>0.65 km/km2 )]
  Symbol:
  Style: esriSLSSolid
  Color: [115, 223, 255, 255]
  Width: 1
• Value: 8
  Label: (RGW) Rain and seasonal groundwater
  Description: Bimodal hydrograph driven by winter rain pulse and percolating winter rain appearing as baseflow pulse later in year; can be ephemeral low elevation with limited winter precipitation and low slopes (< 24%) AND Coastal catchments with small aquifers driving short residence times
  Symbol:
  Style: esriSLSSolid
  Color: [145, 97, 255, 255]
  Width: 1
• Value: 4
  Label: (WS) Winter storms
  Description: predictable large fall and winter storms earlies peak flows (in January) • Low elevation catchments with substantial winter precipitation OR • Low elevation, mid-slope (31 - 24%) catchments with low winter precipitation but high riparian soils clay content (>23%) AND • Underlain by unconsolidated aquifers covered by thick alluvium
  Symbol:
  Style: esriSLSSolid
  Color: [255, 170, 0, 255]
  Width: 1
• Value: 5
  Label: (GW) Groundwater
  Description: highest mean annual flows and highest minimum flows low seasonality and high predictability • Mid-elevation catchments with large area (>2,144 km2 ) underlain by volcanic (basaltic and andesitic) geology [low stream density (<0.65 )] OR • Low elevation, limited winter precipitation, very large contributing area (>15,420 km2) with low riparian soils clay content (<17%) AND • Underlain by igneous and metamorphic rock aquifers
  Symbol:
  Style: esriSLSSolid
  Color: [255, 0, 0, 255]
  Width: 1
• Value: 6
  Label: (PGR) Perennial groundwater and rain
  Description: low seasonality and mean annual streamflow transition between WS and GW, with winter rain contributions but generally stable flows • Low elevation catchments with low clay content riparian soils (<23%) [low stream density (<1.1 km/km2)] AND • Underlain by sedimentary rock materials in Central Coast region
  Symbol:
  Style: esriSLSSolid
  Color: [76, 230, 0, 255]
  Width: 1
• Value: 7
  Label: (FER) Flashy, ephemeral rain
  Description: lowest mean annual flows, often ephemeral highest CV, lowest predictability longest extreme low flow duration highest flows in winter low elevation catchments with high clay content soils (> 23%) and high slopes (> 31%) [high stream density (> 1.15 km/km2)]
  Symbol:
  Style: esriSLSSolid
  Color: [255, 148, 223, 255]
  Width: 1
• Value: 9
  Label: (HLP) High elevation, low precipitation
  Description: low mean annual flows highest flows in winter high elevation but low slope low precipitation and limited snow influence
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Supports Query With Distance: true
Supports Sql Expression: true
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Supports Query With LOD Spatial Reference: false


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Templates:
• Name: (SM) Snowmelt
  Description: Hydrologic Characteristics: Large spring snowmelt pulse (~May 24); Very high seasonality index; Extreme low flows (<10th percentile) Sep – Feb. Physical and Climatic Catchment Controls: High elevation catchments (>2,293 m), major snow influence
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---

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Domains:
• CLASS:
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Templates:
• Name: (HSR) High-volume snowmelt and rain
  Description: Hydrologic Characteristics: Spring snowmelt pulse (~May 4); High seasonality but larger winter storm contributions; retain high baseflow throughout summer Bimodal snow – rain hydrograph. Physical and Climatic Catchment Controls: Mid-elevation catchments (1,126 - 2,293 m), large contributing area (>2,144 km2 ) not underlain by volcanic geology [high stream density (>0.65 km/km2 ), mild winter temperatures (Jan temp >-5Co)] OR low elevation (<1,125 m) with very large contributing area (>15,420 km2) and high clay content soils (>17% clay)
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---

ID: 3
Name: 3
Domains:
• CLASS:
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Templates:
• Name: (LSR) Low-volume snowmelt and rain
  Description: Hydrologic Characteristics: Transition between SM and HSR; Bimodal snow – rain hydrograph driven by spring snowmelt pulse and winter rain. Physical and Climatic Catchment Controls: mid-elevation catchments with limited area (<2,144 km2) [low winter temperatures (Jan temp <-5Co), high stream density (>0.65 km/km2 )]
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  Drawing Tool: esriFeatureEditToolLine

---

ID: 8
Name: 8
Domains:
• CLASS:
  Inherited
Templates:
• Name: (RGW) Rain and seasonal groundwater
  Description: Hydrologic Characteristics: Bimodal hydrograph driven by winter rain pulse and percolating winter rain appearing as baseflow pulse later in year; can be ephemeral. Physical and Climatic Catchment Controls: low elevation with limited winter precipitation and low slopes (<24%) AND coastal catchments with small aquifers driving short residence times.
  Prototype:
  CORE050: null
  CLASS: 8
  COMID: null
  REACHCODE: null
  GNIS_ID: null
  GNIS_NAME: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: 4
Name: 4
Domains:
• CLASS:
  Inherited
Templates:
• Name: (WS) Winter storms
  Description: Hydrologic Characteristics: Predictable large fall and winter storms; earlies peak flows (in January). Physical and Climatic Catchment Controls: low elevation catchments with substantial winter precipitation OR low elevation, mid-slope (31 - 24%) catchments with low winter precipitation but high riparian soils clay content (>23%) AND underlain by unconsolidated aquifers covered by thick alluvium
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  Drawing Tool: esriFeatureEditToolLine

---

ID: 5
Name: 5
Domains:
• CLASS:
  Inherited
Templates:
• Name: (GW) Groundwater
  Description: Hydrologic Characteristics: Highest mean annual flows and highest minimum flows; low seasonality and high predictability. Physical and Climatic Catchment Controls: mid-elevation catchments with large area (>2,144 km2 ) underlain by volcanic (basaltic and andesitic) geology [low stream density (<0.65 )] OR low elevation, limited winter precipitation, very large contributing area (>15,420 km2) with low riparian soils clay content (<17%) AND underlain by igneous and metamorphic rock aquifers
  Prototype:
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  CLASS: 5
  COMID: null
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  GNIS_ID: null
  GNIS_NAME: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: 6
Name: 6
Domains:
• CLASS:
  Inherited
Templates:
• Name: (PGR) Perennial groundwater and rain
  Description: Hydrologic Characteristics: Low seasonality and mean annual streamflow; transition between WS and GW, with winter rain contributions but generally stable flows. Physical and Climatic Catchment Controls: low elevation catchments with low clay content riparian soils (<23%) [low stream density (<1.1 km/km2)] AND underlain by sedimentary rock materials in Central Coast region
  Prototype:
  CORE050: null
  CLASS: 6
  COMID: null
  REACHCODE: null
  GNIS_ID: null
  GNIS_NAME: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: 7
Name: 7
Domains:
• CLASS:
  Inherited
Templates:
• Name: (FER) Flashy, ephemeral rain
  Description: Hydrologic Characteristics: lowest mean annual flows, often ephemeral; highest CV, lowest predictability; longest extreme low flow duration; highest flows in winter. Physical and Climatic Catchment Controls: low elevation catchments with high clay content soils (>23%) and high slopes (>31%) [high stream density (>1.15 km/km2)].
  Prototype:
  CORE050: null
  CLASS: 7
  COMID: null
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  GNIS_ID: null
  GNIS_NAME: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: 9
Name: 9
Domains:
• CLASS:
  Inherited
Templates:
• Name: (HLP) High elevation, low precipitation
  Description: Hydrologic Characteristics: low mean annual flows; highest flows in winter. Physical and Climatic Catchment Controls: high elevation but low slope; low precipitation and limited snow influence
  Prototype:
  CORE050: null
  CLASS: 9
  COMID: null
  REACHCODE: null
  GNIS_ID: null
  GNIS_NAME: null
  
  Drawing Tool: esriFeatureEditToolLine

---

Layer: Flow-Ecology Stream Classes with Predicted CSCI Scores (1)

Name: Flow-Ecology Stream Classes with Predicted CSCI Scores

Display Field: GNIS_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Southern California Coastal Water Research Project (SCCWRP) applied the Ecological Limits of Hydrologic Alteration (ELOHA) framework to develop regional (Soutern California) flow-ecology relationships and targets based on responses in the benthic macroinvertebrate community. SCCWRP developed a statewide classification system using a two-step approach: 1 - cluster streams into 7 classes based on differences in winter precipitation, geology, soil characteristics, and mean watershed elevation; 2 - used flow data from a subset of streams with gauge information to test and refine stream classes determine which hydrologic variables best separate streams into respective classes. SCCWRP then collaborated with UC Davis to come up with 9 stream classes.

Copyright Text: State Water Resources Control Board, Southern California Coastal Water Research Project, Surface Water Ambient Monitoring Program, California Department of Fish and Wildlife, Aquatic Bioassessment Laboratory, University of California Davis, Stormwater Monitoring Coalition, Perennial Streams Assessment

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:
XMin: -124.402452313347
YMin: 32.5401068226421
XMax: -114.65551173247201
YMax: 42.00744320550049
Spatial Reference: 4269  (4269)



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Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false


HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

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• CLASS ( type: esriFieldTypeInteger, alias: CLASS, editable: true, nullable: true, defaultValue: null, modelName: CLASS , Coded Values: [1: (SM) Snowmelt] , [2: (HSR) High-volume snowmelt and rain] , [3: (LSR) Low-volume snowmelt and rain] , ...6 more... )
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Templates:
• Name: Flow-Ecology Stream Classes with Predicted CSCI Scores
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