ArcGIS REST Services Directory Login
Home > services > Hosted > EJ_Project_2023_Map_WFL1 (FeatureServer) > EJ_2023_Creeks API Reference
JSON

Layer: EJ_2023_Creeks (ID: 0)

View In:   ArcGIS Online Map Viewer

Name: EJ_2023_Creeks

Display Field: streamname

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>BAARI (Bay Area Aquatic Resource Inventory) was established to meet regional needs for wetlands and stream monitoring. One primary objective was to apply standardized monitoring tools to ensure data comparability and consistent, documented quality. These data help agencies and organizations assess the extent and condition of wetlands in local watersheds and identify and prioritize opportunities for ecological restoration and enhancement in a watershed context.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Background</SPAN></P><P><SPAN>BAARI data is part of the Wetland and Riparian Area Monitoring Plan (WRAMP), which consists of a 1-2-3 level monitoring framework. This allows assessment of wetlands at two scales: landscape and highly localized. BAARI is Level 1 of this framework, developed for landscape level analyses of wetland extent, distribution and abundance. Geographic information systems (GIS) and remote sensing are used to map and create inventories of existing wetlands (both modern and historical). These inventories quantify the extent of wetland habitats and projects, and are used for landscape profiles of wetlands at the state, regional, watershed, and local scales. </SPAN></P><P><SPAN>Level 2 entails rapid field assessment of wetland health or ecological condition. In California the California Rapid Assessment Method (CRAM) is a diagnostic tool that two or more trained practitioners can use to assess the condition of a wetland or riparian site in one half day or less using visual indicators in the field. </SPAN></P><P><SPAN>Level 3 monitoring entails intensive sampling of ecological function or specific aspects of wetland condition. These assessments are intensive quantitative measurements of condition, stress, or cause-and-effect relationships. A Level 3 assessment is an in-depth study of a particular attribute of wetland health such as water quality, fish habitat, bird populations, vegetative cover and diversity, or physical processes. Level 3 monitoring can describe the performance of specific ecological functions at the site scale. </SPAN></P><P><SPAN>Information on the WRAMP is available at http://www.mywaterquality.ca.gov/eco_health/wetlands/condition/wramp_toolkit.shtml</SPAN></P><P><SPAN>More information on BAARI can be found online at: http://www.sfei.org/BAARI. </SPAN></P><P><SPAN STYLE="font-weight:bold;font-size:12pt">Description of Updates in Version 2.1</SPAN></P><OL><LI><P><SPAN>Added channels in Santa Clara County based on the Santa Clara Valley Water District's 2004 stream layer, available at http://data-valleywater.opendata.arcgis.com/datasets/e74548aaba0e46918523d62645e283fd_9 . Presence of these channels was confirmed in recent aerial imagery. Streams added include teh Permanente Diversion Channel, Upper Sunnyvale West Channel (The upper portion is also referred to as Moffett Channel, sections of teh Vasona Canal. Page Channel also reclassified from a 'Ditch' (FD) to an 'Engineered Channel (FEC)</SPAN></P></LI><LI><P><SPAN>In the Petaluma River Watershed, another SFEI study mapped a few channels in great detail using a Lidar derived DEM. These channels were incorporated into BAARI. Also, a depressional wetland was reclassified as Unnatural (DOWU)</SPAN></P></LI><LI><P><SPAN>Ran topology on the streams layer and corrected small errors. This included removing small segments &gt;50m long, and correcting some overlaps and self-intersections.</SPAN></P></LI></OL><P><SPAN STYLE="font-weight:bold;font-size:12pt">Description of Updates in Version 2</SPAN></P><P><SPAN>Local experts provided advice on and reviewed BAARI’s stream, wetland and riparian GIS layers in specific locations to help update the data as conditions in the field changed and/or to increase its accuracy and detail. Improving the accuracy and detail of BAARI improves the base maps for all monitoring and assessment efforts to understand the distribution, amount and ecological condition of Bay Area aquatic resources. The following updates were made to BAARI under this project:</SPAN></P><OL><LI><P><SPAN>The Santa Clara Valley Water District (SCVWD) provided their GIS based stream data for the Guadalupe River Watershed. SFEI’s GIS team incorporated parts of the SCVWD dataset into BAARI to improve the accuracy and detail of the BAARI stream layer with the Guadalupe River watershed. Updates included features such as underground connectors between the upper and lower watershed reaches, and enhanced details of portions of the upper watershed. </SPAN></P></LI><LI><P><SPAN>Watershed Sciences developed six hand-drawn maps showing field verified ditch locations circa 2006. Those data were used in developing the sediment TMDL for the watershed. Watershed sciences provided those maps to SFEI’s GIS team and worked with them to compare the remotely sensed stream and ditch locations in the BAARI data set (based on 2009 NAIP imagery) to her maps and other data (including Google Earth using multiple image dates). Based on this careful comparative process, about 500 linear updates were made to the BAARI stream layer for the Sonoma Creek watershed with the data source attributed to Laurel Collins’ maps. </SPAN></P></LI><LI><P><SPAN>SFEI staff added stream names for the whole BAARI dataset (Bay Area 9 counties, ocean shoreline, and Tomales Bay - 530 different names applied to more than 24000 stream segments).</SPAN></P></LI><LI><P><SPAN>Additional corrections to wetland and stream presence, extent, and classification were appended to the dataset by SFEI staff where inaccuracies were identified based on local expertise of wetlands in the Bay Area.</SPAN></P></LI><LI><P><SPAN>All BAARI updates were reviewed by a second GIS staff member to ensure that they were acceptable and followed BAARI mapping protocols. </SPAN></P></LI></OL><P><SPAN STYLE="font-weight:bold;font-size:12pt">Description of Attribute Fields in BAARI</SPAN></P><P><SPAN STYLE="font-weight:bold;">Baylands</SPAN></P><P><SPAN>RestProj: restoration project associated with this wetland. This field has not been updated in version 2. Refer to http://www.EcoAtlas.org for current listings of ecological restoration projects. </SPAN></P><P><SPAN>Source_Dat: source(s) from which the wetland polygon was digitized, or otherwise incorporated into BAARI</SPAN></P><P><SPAN>WetlandTyp: Coded classification of the wetland type. Codes are defined on p5-6 of "BAARI Mapping Standards" </SPAN></P><P><SPAN>Organization: organization that digitized the wetland polygon</SPAN></P><P><SPAN>ClickCode: simplification of the 'WetlandTyp' attribute used for map database queries in web mapping applications such as http://www.EcoAtlas.org. Refers to the standardized wetland classification system employed by the California Aquatic Resources Inventory (CARI). More information about CARI is available at http://www.sfei.org/it/gis/cari </SPAN></P><P><SPAN>ClickLabel: verbal description of the ClickCode code</SPAN></P><P><SPAN>LegCode: further simplification of the 'WetlandTyp' attribute used in the legends of web mapping applications such as http://www.EcoAtlas.org</SPAN></P><P><SPAN>LegLabel: verbal description of the LegCode code</SPAN></P><P><SPAN>ORIG_FID: unused</SPAN></P><P><SPAN>OpenWater: Open Water (1) or a wetland (0)</SPAN></P><P><SPAN>TidRip: unused</SPAN></P><P><SPAN>GlobalID: Unique identifier, if one exists </SPAN></P><P><SPAN STYLE="font-weight:bold;">Streams</SPAN></P><P><SPAN>WetlandTyp: Coded classification of the stream type. Codes are defined on p9-10 of "BAARI Mapping Standards" </SPAN></P><P><SPAN>Bayland: Identifies whether the feature falls within the historical extent of the Baylands (1) or not (0)</SPAN></P><P><SPAN>Strahler: Strahler stream order of the stream segment.</SPAN></P><P><SPAN>ClickCode: simplification of the 'WetlandTyp' attribute used for map database queries in web mapping applications such as http://www.EcoAtlas.org</SPAN></P><P><SPAN>ClickLabel: verbal description of the ClickCode code</SPAN></P><P><SPAN>LegCode: further simplification of the 'WetlandTyp' attribute used in the legends of web mapping applications such as http://www.EcoAtlas.org</SPAN></P><P><SPAN>LegLabel: verbal description of the LegCode code</SPAN></P><P><SPAN>GlobalID: Unique identifier, if one exists (e.g. ReachCode attribute in NHD)</SPAN></P><P><SPAN>IDNum: Numerical version of GlobalID</SPAN></P><P><SPAN>StreamName: the recognized Geographic Names Information System (GNIS) name of the stream</SPAN></P><P><SPAN>Source_Dat: source(s) from which the segment was digitized, or otherwise incorporated into BAARI.</SPAN></P><P><SPAN>Name_Source: source from which 'StreamName' was identified</SPAN></P><P><SPAN>FNode: "From Node" used to determine stream flow direction</SPAN></P><P><SPAN>TNode: "To Node" used to determine stream flow direction</SPAN></P><P><SPAN>LegHeader: legend header used in the legends of web mapping applications such as http://www.EcoAtlas.org</SPAN></P><P><SPAN>TMDL_DATA: "Yes" value indicates TMDL data is available for this stream segment. Contact SFEI for information about integrating TMDL data with BAARI</SPAN></P><P><SPAN STYLE="font-weight:bold;">Wetlands (Non-tidal)</SPAN></P><P><SPAN>WetlandTyp: Coded classification of the wetland type. Codes are defined on p6-9 of "BAARI Mapping Standards" </SPAN></P><P><SPAN>SourceData: source(s) from which the wetland polygon was digitized, or otherwise incorporated into BAARI</SPAN></P><P><SPAN>Organization: organization that digitized the wetland polygon</SPAN></P><P><SPAN>ClickCode: simplification of the 'WetlandTyp' attribute used for map database queries in web mapping applications such as http://www.EcoAtlas.org</SPAN></P><P><SPAN>ClickLabel: verbal description of the ClickCode code</SPAN></P><P><SPAN>LegCode: further simplification of the 'WetlandTyp' attribute used in the legends of web mapping applications such as http://www.EcoAtlas.org</SPAN></P><P><SPAN>LegLabel: verbal description of the LegCode code</SPAN></P><P><SPAN>GlobalID: Unique identifier, if one exists</SPAN></P></DIV></DIV></DIV>

Service Item Id: eb7fec38eda145588691ea844ab54341

Copyright Text: San Francisco Estuary Institute and Aquatic Science Center 2017

Default Visibility: true

MaxRecordCount: 2000

MaxSelectionCount: 0

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Extent:
Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields: Templates:
Capabilities: Query

Sync Can Return Changes: true

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports ApplyEdits By Upload Id: true

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:

Supported Operations:   Query   Query Attachments   Query Analytic   Query Top Features   Query Bins   Append   Validate SQL   Generate Renderer   Return Updates   Metadata   Update Metadata