Stream morphology map (DP4.00131.001)

The wadeable stream morphology data product provides data for three types of total station surveys at NEON wadeable stream sites. **Geomorphology surveys** are conducted at each site once every five years, on average. For a geomorphology survey, downloads include raw survey data and post-processed maps, shapefiles, and metric tables that quantify channel geomorphology, bed composition and biological habitat within the aquatic reach boundaries (approximately 1,000 meters in stream length) of NEON wadeable stream sites. Raw survey data are collected with high-resolution total station survey equipment at each site. Survey maps and channel metrics are produced by geo-referencing the raw survey data (Level 0) to a global coordinate system (Level 4). During years when a geomorphology survey is not conducted, a site will undergo a **rapid habitat assessment survey**. For a rapid habitat assessment survey, downloads include raw survey data and metric tables that assess habitat size and composition within the aquatic reach boundaries. An **AIS (Aquatic Instrumented Systems) site survey** may also be conducted in any given year. For AIS site surveys, downloads include a table of survey points collected along one or more transects that bisect the stream channel. These data are used to delineate hydraulic controls for development of stage-discharge rating curves. For additional details, see the Data Product User Guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.

geo_featureInfo: 60

geo_mappedPointErrors: 60

geo_misclosureInfo: 60

geo_missingLine: 60

geo_pebbleCount: 60

geo_pebbleFieldData: 60

geo_totalStation: 60

geo_geomorphicFeatureCount: 180

geo_processedSurveyData: 180

geo_rapidHabitatAssessment: 180

geo_rawSurveyData: 180

geo_surveyPoints: 180

geo_surveySummary: 180

geo_thalwegByHabitatID: 180

geo_thalwegByHabitatType: 180

geo_thalwegLongProfile: 180

geo_transectBankfullWidths: 180

geo_trimbleData: 180