Description: CROSS_SECT_SAMPLE_PUB_PT: Cross-sectional surveys capture the shape of the stream channel at a specific location by measuring elevations at intervals across the channel. Cross-sections are used to determine bankfull width, mean bankfull depth, and entrenchment of a channel at a specific point. Cross-sections are usually installed and monitored to track geomorphic change in a stream before and after a physical alteration to the channel; these surveys can detect erosion and deposition of stream sediment as well as changes to the shape (profile) of stream bed and banks. The cross-section table defined in this data standard stores the summary measurements. Raw data can be stored in a spreadsheet or document and related to the record.
Copyright Text: Bureau of Land Management (BLM), Oregon State Office
Description: DISCHARGE_SAMPLE_PUB_PT: Sample points recording stream discharge. Stream discharge is the volume of water passing a location per unit of time, and is generally expressed as cubic feet per second (cfs). The discharge table defined in this data standard stores the summary measurements. Raw data can be stored in a spreadsheet or document and related to the record.
Copyright Text: Bureau of Land Management (BLM), Oregon State Office
Description: TEMP_SAMPLE_PUB_PT: Stream temperatures are the result of a variety of energy transfer processes, including solar radiation, evaporation, conduction, and advection. Stream temperatures reflect seasonal changes in net radiation and daily changes in air temperatures. Patterns of energy input are also modified by flow velocity, flow depth, bottom substrate, and spring and groundwater inflow. The temperature tables defined in this data standard store the raw temperature measurements recorded by a continuous reading device (WTR_TEMP_RAW_TBL) and the attributes that are summarized from the raw data (WTR_TEMP_TBL).
Copyright Text: Bureau of Land Management (BLM), Oregon State Office