Layer: Nitrate Trends (ID:23)

View In: Map Viewer

Name: Nitrate Trends

Display Field: NAMEABBR

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: <p>The trend metric is the annual precipitation-weighted mean wet nitrate concentration. All improving and deteriorating trends have at least 90% probability of being correct (those with p-values ≤ 0.10). Statistically significant (p-value ≤ 0.10) trends with zero slope are represented as unchanging trends. Parameters with no statistically significant trend (p-value ≥ 0.10) are also represented as unchanging trends. See NPS air quality analysis methods for more information: https://www.nps.gov/articles/air-analysis-methods-latest.htm.</p>

Copyright Text: NPS Air Resources Division

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field:

Type ID Field: NO3_TREND_

Fields:

OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
PARKCODE (type: esriFieldTypeString, alias: PARKCODE, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
NAMEABBR (type: esriFieldTypeString, alias: NAMEABBR, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
ENDYEAR (type: esriFieldTypeSmallInteger, alias: ENDYEAR, SQL Type: sqlTypeOther, nullable: true, editable: true)
LONGITUDE (type: esriFieldTypeDouble, alias: LONGITUDE, SQL Type: sqlTypeOther, nullable: true, editable: true)
LATITUDE (type: esriFieldTypeDouble, alias: LATITUDE, SQL Type: sqlTypeOther, nullable: true, editable: true)
NO3_TREND (type: esriFieldTypeString, alias: NO3_TREND, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
NO3_TREND_ (type: esriFieldTypeString, alias: NO3_TREND_, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
URL (type: esriFieldTypeString, alias: URL, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)

Types:

NO3_TREND_: Improving Trend

NO3_TREND_: Unchanging Trend

NO3_TREND_: Deteriorating Trend

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/25/2025 6:22:51 PM

Schema Last Edit Date: 6/21/2024 7:43:40 PM

Data Last Edit Date: 6/21/2024 7:43:40 PM

Supported Operations: Query Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat