# Longitudinal profiles and geomorphic descriptions of twelve randomly selected stream reaches in the Andrews Experimental Forest, 2000-2001 ## Dataset - **Database Code:** HF012 - **Title:** Longitudinal profiles and geomorphic descriptions of twelve randomly selected stream reaches in the Andrews Experimental Forest, 2000-2001 - **Abstract:** The dataset provides surveyed longitudinal elevation profiles of the water surface along the center-line of twelve randomly selected study reaches located in the Lookout Creek basin at the H.J. Andrews Experimental Forest in the western Cascades Mountains of Oregon. Streams were surveyed with an engineers level and stadia rod between Jan 2000 and August 2001; survey locations were regularly spaced along the length of the channel using a tape measure stretched between stakes along the center line of the channel. The slope of the water surface profile were categorized into three distinct types of units, called Slope Units, and were defined according to slope categories for flat water, steep water, and step units (FLATs, STEEPs and STEPs). The slope units were categorized into 12 different qualitatively descriptive classifications to further describe the morphology of the survey, and a perceived cause of the slope units. Additionally, channel widths were recorded to examine the effects of channel constraint on the geomorphic features of the study reaches. - **Keywords:** geomorphology; hydrology; debris flows; stream order; physical processes; hydrologic processes; woody debris; coarse woody debris; water; groundwater; hyporheic zone; aquatic ecosystems; rivers; streams - **Temporal coverage:** 2000-01-06 to 2001-08-31 - **Principal Investigator:** Steven M. Wondzell ## Data Entities 1. HF01201 2. HF01202 ## Entity 1: HF01201 ### Attribute list - **DBCODE** — varchar, enum Database Code - **HF012** — FSDB Database Code HF012 - **ENTITY** — numeric(1), range 1.0000 1.0000, number Number of the entity in this database - **REACH** — varchar, freetext Study reach number - **UP_UTM_N** — numeric(1.000000), range 4895509.0000 4900951.0000, meters Upstream utm northing (zone 10) - **UP_UTM_E** — numeric(1.000000), range 559726.0000 570845.0000, meters Upstream utm easting (zone 10) - **LOW_UTM_N** — numeric(1.000000), range 4895360.0000 4900854.0000, meters Downstream utm northing (zone 10) - **LOW_UTM_E** — numeric(1.000000), range 559498.0000 570824.0000, meters Downstream utm easting (zone 10) - **BASIN_AREA** — numeric(0.010000), range 0.6200 62.3500, square kilometers Drainage basin area - **GRADIENT** — numeric(0.001000), range 0.0150 0.2180, percent Average gradient - **SEG_TYPE** — varchar, enum Valley segment type - **Alluvial** — Predominantly alluvial bed material - **Bedrock** — Predominantly bedrock bed material - **Alluvial/bedrock** — Combination of alluvial and bedrock bed material - **REACH_TYPE** — varchar, enum Stream reach type - **Cascade** — Predominant reach characteristic - **Step-pool** — Predominantly step pool bed configuration - **Step-pool/Plane bed** — Combination of alluvial and bedrock bed configurations - **Bedrock** — Predominantly bedrock bed configuration ## Entity 2: HF01202 ### Attribute list - **DBCODE** — varchar, enum Database Code - **HF012** — FSDB Database Code HF012 - **ENTITY** — numeric(1), range 1.0000 2.0000, number Number of the entity in this database - **DATANUM** — numeric(1.000000), range 1.0000 994.0000, number Integers identifying the data points in the survey - **STR_ORDER** — numeric(1.000000), range 2.0000 4.0000, number Stream order of the surveyed reach - **REACH** — varchar, freetext Study reach number - **CHNLTYPE** — varchar, enum Differentiates between main channel and the different types of side channels - **LSC2** — A spur side channel from the primary side channel (looking downstream) of the main channel - **MAIN** — Indicated the main channel - **RSC1** — The only, or first side channel on the right side (looking downstream) of the main channel - **RSC2** — The second side channel on the right side (looking downstream) of the main channel - **BLSC** — An island bar creating a side channel on the left - **BRSC** — An island bar creating a side channelon the right - **ANAST_R** — Side channel with subsurface flow as a starting or ending point on the right side - **ANAST_L** — Side channel with subsurface flow as a starting or ending point on the left side - **ALCOVE_L** — An alcove on the left side - **ALCOVE_R** — An alcove on the right side - **STA** — numeric(0.010000), range 0.0000 400.4000, meters Distance down the stream or side channel, measured along the main stream axi is - **BED_ELEV** — numeric(0.001000), range -0.7000 100.8850, meters Elevation of the stream bed - **WATER_ELEV** — numeric(0.001000), range -0.0350 100.9350, meters Elevation of the water surface - **INC_X** — numeric(0.001000), range -2.2000 29.7000, meters The horizontal component of the unit - **INC_Y** — numeric(0.001000), range -0.3900 1.7410, meters The vertical component of the unit - **UNIT_SLOPE** — numeric(0.010000), range -0.2100 2.0700, number The calculated slope of the unit (inc_z / inc_x) - **UNIT** — varchar, enum Identifies the type of unit at the given location - **FLAT** — A flat water unit (slope < 0.025) - **STEEP** — A steep water unit (0.025 > slope < 0.13) - **STEP** — A step unit (slope > 0.13) - **CAUSE** — varchar, enum Perceived cause of the slope unit - **BOULDER** — Boulder seemed to cause the unit type - **SM_BOULD** — Small boulder seemed to cause the unit type - **LOG** — Log seemed to cause the unit type - **BED** — Bedrock seemed to cause the unit type - **WOOD** — Woody debris seemed to cause the unit type - **UNIT_DESC** — varchar, enum A qualitative description of the slope unit - **RIFFLE** — A channel unit characterized by moderate gradient (slope < 4%), and swift, but relatively shallow water flowing over substrates of mixed size that are often only partially-submerged. Flow is moderately turbulent and - **HGR** — A riffle that is relatively steep (slope 4% - 7%), often with large cobbles or boulders present in clusters, but not organized into steps or ribs. - **PLUNGE** — A pool formed below a step by spilling, or plunging water. - **DAM** — Pool caused by a dam, blockage, or other feature raising downstream water surface. - **SCOUR** — A pool formed by the deflection of current (by an outcroppings, boulders, or wood), causing a scoured depression. Often associated with a well-defined re-circulating eddy. - **POOL** — A channel unit with a low or very low gradient, areas of slow tranquil flow, a well-defined depression in the bed, and relatively shallow water at the downstream end. - **RAPID** — A channel unit characterized by, swift, very turbulent water, often flowing over and around large boulders. - **CASC** — A channel unit with a very high-gradient, characterized by white water tumbling over bedrock or boulders. Boulders generally not organized into channel spanning steps. - **FALL** — Small (<2m), but distinct, channel-spanning waterfalls caused by cobbles, boulders, bedrock or wood oriented perpendicular to the channel axis. - **TRENCH** — An elongated pool in a narrow section of stream; often associated with bedrock outcroppings. - **RUN** — A channel unit that is pool-like, except that velocity is greater, shallow water at the downstream end is lacking, and flow is noticeably concentrated toward the center or thalweg. - **GLIDE** — A channel unit that is run-like, except that flow is not noticeably concentrated toward the center or thalweg. - **FEATURE** — varchar, enum Describes features of the unit or point on the survey at that given point. - **CONF** — Confluence of a side channel or other type of channel - **DIVR** — Side channel divergence - **DEEP** — Indicates the deepest part of a pool feature - **GRAVEL** — Indicateds predominantly gravel bed material - **BOULDER** — Indicateds a boulder as the predominant bed feature - **SM_BOULD** — Indicateds small boulders as the predominant bed feature - **BOULD_MIX** — Indicates various sized boulders as the predominant bed feature - **COBBLE** — Indicates cobbles as the predominant bed feature - **COB_GRAV** — Indicates cobbles and gravels as the predominant bed feature - **BEDROCK** — Indicates bedrock as the predominant bed feature - **LOG** — Indicates a log as the feature or as the predominant bed feature - **C_WOOD** — Feature is composed of coarse wood - **FIWD** — Feature is composed of fine woody debris - **SMWD** — Feature is composed of small woody debris - **LOG_JAM** — Feature is a log jam - **BR_CHUTE** — The bed feature is predominantly locally constrained bedrock - **R_INFLOW** — Confluence, tributary, or springs inflow from right - **L_INFLOW** — Confluence, tributary, or springs inflow from left - **CONF_W** — numeric(0.100000), range 2.0000 33.5000, meters Indicates the confined width of the stream channel at the given distance dow wnstream - **BNKF_W** — numeric(0.100000), range 1.3000 23.7000, meters Indicates the bank full width of the stream channel at the given distance do ownstream - **WETD_W** — numeric(0.100000), range 0.2000 20.9000, meters Indicates the wetted width of the stream channel at the given distance downs stream ## Attribute Definitions **BASIN_AREA** Drainage basin area **BED_ELEV** Elevation of the stream bed **BNKF_W** Indicates the bank full width of the stream channel at the given distance do ownstream **CAUSE** Perceived cause of the slope unit **CHNLTYPE** Differentiates between main channel and the different types of side channels **CONF_W** Indicates the confined width of the stream channel at the given distance dow wnstream **DATANUM** Integers identifying the data points in the survey **DBCODE** Database Code **ENTITY** Number of the entity in this database **FEATURE** Describes features of the unit or point on the survey at that given point. **GRADIENT** Average gradient **INC_X** The horizontal component of the unit **INC_Y** The vertical component of the unit **LOW_UTM_E** Downstream utm easting (zone 10) **LOW_UTM_N** Downstream utm northing (zone 10) **REACH** Study reach number **REACH_TYPE** Stream reach type **SEG_TYPE** Valley segment type **STA** Distance down the stream or side channel, measured along the main stream axi is **STR_ORDER** Stream order of the surveyed reach **UNIT** Identifies the type of unit at the given location **UNIT_DESC** A qualitative description of the slope unit **UNIT_SLOPE** The calculated slope of the unit (inc_z / inc_x) **UP_UTM_E** Upstream utm easting (zone 10) **UP_UTM_N** Upstream utm northing (zone 10) **WATER_ELEV** Elevation of the water surface **WETD_W** Indicates the wetted width of the stream channel at the given distance downs stream ## Enumerated Domains ### DBCODE - **HF012** — FSDB Database Code HF012 ### SEG_TYPE - **Alluvial** — Predominantly alluvial bed material - **Bedrock** — Predominantly bedrock bed material - **Alluvial/bedrock** — Combination of alluvial and bedrock bed material ### REACH_TYPE - **Cascade** — Predominant reach characteristic - **Step-pool** — Predominantly step pool bed configuration - **Step-pool/Plane bed** — Combination of alluvial and bedrock bed configurations - **Bedrock** — Predominantly bedrock bed configuration ### CHNLTYPE - **LSC2** — A spur side channel from the primary side channel (looking downstream) of the main channel - **MAIN** — Indicated the main channel - **RSC1** — The only, or first side channel on the right side (looking downstream) of the main channel - **RSC2** — The second side channel on the right side (looking downstream) of the main channel - **BLSC** — An island bar creating a side channel on the left - **BRSC** — An island bar creating a side channelon the right - **ANAST_R** — Side channel with subsurface flow as a starting or ending point on the right side - **ANAST_L** — Side channel with subsurface flow as a starting or ending point on the left side - **ALCOVE_L** — An alcove on the left side - **ALCOVE_R** — An alcove on the right side ### UNIT - **FLAT** — A flat water unit (slope < 0.025) - **STEEP** — A steep water unit (0.025 > slope < 0.13) - **STEP** — A step unit (slope > 0.13) ### CAUSE - **BOULDER** — Boulder seemed to cause the unit type - **SM_BOULD** — Small boulder seemed to cause the unit type - **LOG** — Log seemed to cause the unit type - **BED** — Bedrock seemed to cause the unit type - **WOOD** — Woody debris seemed to cause the unit type ### UNIT_DESC - **RIFFLE** — A channel unit characterized by moderate gradient (slope < 4%), and swift, but relatively shallow water flowing over substrates of mixed size that are often only partially-submerged. Flow is moderately turbulent and - **HGR** — A riffle that is relatively steep (slope 4% - 7%), often with large cobbles or boulders present in clusters, but not organized into steps or ribs. - **PLUNGE** — A pool formed below a step by spilling, or plunging water. - **DAM** — Pool caused by a dam, blockage, or other feature raising downstream water surface. - **SCOUR** — A pool formed by the deflection of current (by an outcroppings, boulders, or wood), causing a scoured depression. Often associated with a well-defined re-circulating eddy. - **POOL** — A channel unit with a low or very low gradient, areas of slow tranquil flow, a well-defined depression in the bed, and relatively shallow water at the downstream end. - **RAPID** — A channel unit characterized by, swift, very turbulent water, often flowing over and around large boulders. - **CASC** — A channel unit with a very high-gradient, characterized by white water tumbling over bedrock or boulders. Boulders generally not organized into channel spanning steps. - **FALL** — Small (<2m), but distinct, channel-spanning waterfalls caused by cobbles, boulders, bedrock or wood oriented perpendicular to the channel axis. - **TRENCH** — An elongated pool in a narrow section of stream; often associated with bedrock outcroppings. - **RUN** — A channel unit that is pool-like, except that velocity is greater, shallow water at the downstream end is lacking, and flow is noticeably concentrated toward the center or thalweg. - **GLIDE** — A channel unit that is run-like, except that flow is not noticeably concentrated toward the center or thalweg. ### FEATURE - **CONF** — Confluence of a side channel or other type of channel - **DIVR** — Side channel divergence - **DEEP** — Indicates the deepest part of a pool feature - **GRAVEL** — Indicateds predominantly gravel bed material - **BOULDER** — Indicateds a boulder as the predominant bed feature - **SM_BOULD** — Indicateds small boulders as the predominant bed feature - **BOULD_MIX** — Indicates various sized boulders as the predominant bed feature - **COBBLE** — Indicates cobbles as the predominant bed feature - **COB_GRAV** — Indicates cobbles and gravels as the predominant bed feature - **BEDROCK** — Indicates bedrock as the predominant bed feature - **LOG** — Indicates a log as the feature or as the predominant bed feature - **C_WOOD** — Feature is composed of coarse wood - **FIWD** — Feature is composed of fine woody debris - **SMWD** — Feature is composed of small woody debris - **LOG_JAM** — Feature is a log jam - **BR_CHUTE** — The bed feature is predominantly locally constrained bedrock - **R_INFLOW** — Confluence, tributary, or springs inflow from right - **L_INFLOW** — Confluence, tributary, or springs inflow from left