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HF012 – Simplified metadata

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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
Date begin
2000-01-06
Date end
2001-08-31
Principal Investigator
Steven M. Wondzell

Entities

  1. HF01201
  2. HF01202

1. HF01201 - Attribute list

HF01201 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1) range 1.0000 1.0000 number
REACH varchar freetext
UP_UTM_N numeric(1.000000) range 4895509.0000 4900951.0000 meters
UP_UTM_E numeric(1.000000) range 559726.0000 570845.0000 meters
LOW_UTM_N numeric(1.000000) range 4895360.0000 4900854.0000 meters
LOW_UTM_E numeric(1.000000) range 559498.0000 570824.0000 meters
BASIN_AREA numeric(0.010000) range 0.6200 62.3500 square kilometers
GRADIENT numeric(0.001000) range 0.0150 0.2180 percent
SEG_TYPE varchar enum
REACH_TYPE varchar enum

2. HF01202 - Attribute list

HF01202 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1) range 1.0000 2.0000 number
DATANUM numeric(1.000000) range 1.0000 994.0000 number
STR_ORDER numeric(1.000000) range 2.0000 4.0000 number
REACH varchar freetext
CHNLTYPE varchar enum
STA numeric(0.010000) range 0.0000 400.4000 meters
BED_ELEV numeric(0.001000) range -0.7000 100.8850 meters
WATER_ELEV numeric(0.001000) range -0.0350 100.9350 meters
INC_X numeric(0.001000) range -2.2000 29.7000 meters
INC_Y numeric(0.001000) range -0.3900 1.7410 meters
UNIT_SLOPE numeric(0.010000) range -0.2100 2.0700 number
UNIT varchar enum
CAUSE varchar enum
UNIT_DESC varchar enum
FEATURE varchar enum
CONF_W numeric(0.100000) range 2.0000 33.5000 meters
BNKF_W numeric(0.100000) range 1.3000 23.7000 meters
WETD_W numeric(0.100000) range 0.2000 20.9000 meters

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

Enumerated domain for attribute: DBCODE

Codes for DBCODE
Code Description
HF012 FSDB Database Code HF012

Enumerated domain for attribute: SEG_TYPE

Codes for SEG_TYPE
Code Description
Alluvial Predominantly alluvial bed material
Bedrock Predominantly bedrock bed material
Alluvial/bedrock Combination of alluvial and bedrock bed material

Enumerated domain for attribute: REACH_TYPE

Codes for REACH_TYPE
Code Description
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

Enumerated domain for attribute: CHNLTYPE

Codes for CHNLTYPE
Code Description
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

Enumerated domain for attribute: UNIT

Codes for UNIT
Code Description
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)

Enumerated domain for attribute: CAUSE

Codes for CAUSE
Code Description
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

Enumerated domain for attribute: UNIT_DESC

Codes for UNIT_DESC
Code Description
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.

Enumerated domain for attribute: FEATURE

Codes for FEATURE
Code Description
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