National Water-Quality Assessment (NAWQA) Program - South Platte River Basin

DATA DICTIONARY #2 for Level 1 Habitat Data Sets

TRANSECT TABLE:

There is one record in the transect table for each transect visit.
Each transect visit is identified by an unique integer number, "Transect-id
number", that links the data in the transect table to the transect-point table.

The transect may not be the same location for each different visit to
the sampling reach. The data element "transect number" refers to the
sequence number of a transect visited on a particular date.  The
difference between the two data elements is shown by the following
example.  A sampling reach is visited on two different dates, and
three transects are identified during each visit.  Assuming these
data are the only transects stored in the table, the data would be
identified as follows:

 Date #1                     Date #2
   Transect #1                 Transect #1
     TCTID = 1                   TCTID = 4
     TCTNO = 1                   TCTNO = 1
   Transect #2                 Transect #2
     TCTID = 2                   TCTID = 5
     TCTNO = 2                   TCTNO = 2
   Transect #3                 Transect #3
     TCTID = 3                   TCTID = 6
     TCTNO = 3                   TCTNO = 3

Sampling-reach-id number
 COLUMN-NAME:  REACHID
 TIME-VARIANT: no
 STORAGE TYPE: char
 REVISED:      9/23/94, 11/4/96 (lengthened)
 DOMAIN:       >0
 Provides sampling-reach identification for the transect.

Transect-id number
 COLUMN-NAME:  TCTID
 TIME-VARIANT: no
 STORAGE TYPE: integer
 DOMAIN:       >0

Transect-visit date
 COLUMN-NAME:  DATE
 TIME-VARIANT: no
 STORAGE TYPE: date
 DOMAIN:       valid date
 Date of visit to transect.

Transect-sequence number
 COLUMN-NAME:  TCTNO
 REVISED:      5/2/1994
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 DOMAIN:       >0
 Sequential-identification number of the transect.

Distance to downstream end of sampling reach
 COLUMN-NAME:  DSDIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        meters
 DOMAIN:       >=0.0
 Curvilinear distance from midpoint of transect to downstream end of
 sampling reach, following the stream channel.

Channel width
 COLUMN-NAME:  CHWIDTH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       >0.0
 Wetted stream width at the transect, measured perpendicular to flow direction.

Channel-width remark
 COLUMN-NAME:  CHWIDRM
 REVISED:      5/2/1994
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       ref.list
                blank = no remark
                  S   = width computed from transit, level, or GPS survey
                  T   = width determined by steel tape
                  R   = width determined by rangefinder
                  E   = width was estimated
                  >   = width greater than value shown
 optionally used to qualify the width measurement:  CHWIDTH
 
Left-bank width
 COLUMN-NAME:  LBWIDTH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        meters
 DOMAIN:       >0.0
 Width of left bank flooded with 2-year recurrence interval.

Left-Bank-width remark
 COLUMN-NAME:  LBWIDRM
 REVISED:      5/2/1994, changed column name from LBWIDRK to LBWIDRM 3/3/96
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       ref.list, see CHWIDRM
 optionally used to qualify the width measurement:  LBWIDTH
 
Right-bank width
 COLUMN-NAME:  RBWIDTH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        meters
 DOMAIN:       >0.0
 Width of left bank flooded with 2-year recurrence interval.

Right-Bank-width remark
 COLUMN-NAME:  RBWIDRM
 REVISED:      5/2/1994
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       ref.list, see CHWIDRM
 optionally used to qualify the width measurement:  RBWIDTH
 
Left flood-plain width
 COLUMN-NAME:  LFPWIDTH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        meters
 DOMAIN:       >0.0

Left-floodplain-width remark
 COLUMN-NAME:  LFPWRM
 REVISED:      5/2/1994
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       ref.list, see CHWIDRM
 optionally used to qualify the width measurement:  LFPWIDTH
 
Right flood-plain width
 COLUMN-NAME:  RFPWIDTH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        meters
 DOMAIN:       >0.0

Right-floodplain-width remark
 COLUMN-NAME:  RFPWRM
 REVISED:      5/2/1994
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       ref.list, see CHWIDRM
 optionally used to qualify the width measurement:  RFPWIDTH
 
Canopy angle
 COLUMN-NAME:  CANANGLE
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        degrees
 DOMAIN:       180>x>0.0

Channel compass heading
 COLUMN-NAME:  CHANHEAD
 REVISED:      2/7/97 (enlarged domain)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        degrees
 DOMAIN:       360>=x>=0

Left  bank angle
 COLUMN-NAME:  LBANGLE
 REVISED:      2/7/97 (enlarged domain)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        degrees
 DOMAIN:       180>=x>=0.0

Right bank angle
 COLUMN-NAME:  RBANGLE
 REVISED:      5/4/94 (changed name from RBRANGLE)
 REVISED:      2/7/97 (enlarged domain)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        degrees
 DOMAIN:       180>=x>=0.0

Left  bank height
 COLUMN-NAME:  LBHIGH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       >0.0

Right bank height
 COLUMN-NAME:  RBHIGH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       >0.0

Left  bank-vegetation stability
 COLUMN-NAME:  LBSTAB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       1-4
                1 =   <25% of bank surface covered by veg.,gravel, etc.
                2 = 25-49% of bank surface covered by veg.,gravel, etc.
                3 = 50-79% of bank surface covered by veg.,gravel, etc. 
                4 =   >80% of bank surface covered by veg.,gravel, etc. 

Right bank-vegetation stability
 COLUMN-NAME:  RBSTAB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       1-4 (see LBSTAB)

Left  bank shape
 COLUMN-NAME:  LBSHAPE
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (from Habitat Protocol)
                CC = concave upward
                LN = linear
                CV = convex upward

Right bank shape
 COLUMN-NAME:  RBSHAPE
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list

Left  bank erosion
 COLUMN-NAME:  LBEROS
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (from Habitat Protocol)
                DA = debris avalanche
                RF = rotational failure
                SL = slab failure
                CB = cut-bank scalloping
                NO = none

Right bank erosion
 COLUMN-NAME:  RBEROS
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (see LBEROS)

Left  bank dominant substrate
 COLUMN-NAME:  LBDOMSUB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (from habitat protocol)
                BR = bedrock
                BO = boulder
                CO = cobble
                GV = gravel
                SA = sand
                SI = silt
                HP = hardpan
                MA = marl
                DE = detritus
                MU = muck
                AR = artificial

Right bank dominant substrate
 COLUMN-NAME:  RBDOMSUB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (see LBDOMSUB)

Left  bank subdominant substrate
 COLUMN-NAME:  LBSUBSUB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (see LBDOMSUB)

Right bank subdominant substrate
 COLUMN-NAME:  RBSUBSUB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (see LBDOMSUB)

(NOTE:  Bar-Shelf-Island data elements were moved to a separate
        table; May, 1994)

Left  bank, Quad.1, woody-species description
 COLUMN-NAME:  LBQ1WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Left  bank, Quad.2, woody-species description
 COLUMN-NAME:  LBQ2WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Left  bank, Quad.3, woody-species description
 COLUMN-NAME:  LBQ3WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Left  bank, Quad.4, woody-species description
 COLUMN-NAME:  LBQ4WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Left  bank, Quad.1, woody species
 COLUMN-NAME:  LBQ1WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Left  bank, Quad.2, woody species
 COLUMN-NAME:  LBQ2WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Left  bank, Quad.3, woody species
 COLUMN-NAME:  LBQ3WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Left  bank, Quad.4, woody species
 COLUMN-NAME:  LBQ4WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Left  bank, Quad.1, dist to sample
 COLUMN-NAME:  LBQ1DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

A value of -9 indicates no trees within the point-quarter .

Left  bank, Quad.2, dist to sample
 COLUMN-NAME:  LBQ2DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       >0.0, -9

Left  bank, Quad.3, dist to sample
 COLUMN-NAME:  LBQ3DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Left  bank, Quad.4, dist to sample
 COLUMN-NAME:  LBQ4DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Left  bank, Quad.1, diam @ breast
 COLUMN-NAME:  LBQ1DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Left  bank, Quad.2, diam @ breast
 COLUMN-NAME:  LBQ2DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Left  bank, Quad.3, diam @ breast
 COLUMN-NAME:  LBQ3DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Left  bank, Quad.4, diam @ breast
 COLUMN-NAME:  LBQ4DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Left  bank, Quad.1, # trunks
 COLUMN-NAME:  LBQ1NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        
 DOMAIN:       > 0.0, -9

Left  bank, Quad.2, # trunks
 COLUMN-NAME:  LBQ2NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        
 DOMAIN:       > 0.0, -9

Left  bank, Quad.3, # trunks
 COLUMN-NAME:  LBQ3NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        
 DOMAIN:       > 0.0, -9

Left  bank, Quad.4, # trunks
 COLUMN-NAME:  LBQ4NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        
 DOMAIN:       > 0.0, -9

Right bank, Quad.1, woody-species description
 COLUMN-NAME:  RBQ1WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Right bank, Quad.2, woody-species description
 COLUMN-NAME:  RBQ2WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Right bank, Quad.3, woody-species description
 COLUMN-NAME:  RBQ3WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Right bank, Quad.4, woody-species description
 COLUMN-NAME:  RBQ4WSNM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       free text

Right bank, Quad.1, woody species
 COLUMN-NAME:  RBQ1WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Right bank, Quad.2, woody species
 COLUMN-NAME:  RBQ2WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Right bank, Quad.3, woody species
 COLUMN-NAME:  RBQ3WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Right bank, Quad.4, woody species
 COLUMN-NAME:  RBQ4WSSP
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       valid NODC code

Right bank, Quad.1, dist to sample
 COLUMN-NAME:  RBQ1DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.2, dist to sample
 COLUMN-NAME:  RBQ2DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.3, dist to sample
 COLUMN-NAME:  RBQ3DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.4, dist to sample
 COLUMN-NAME:  RBQ4DIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.1, diam @ breast
 COLUMN-NAME:  RBQ1DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.2, diam @ breast
 COLUMN-NAME:  RBQ2DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.3, diam @ breast
 COLUMN-NAME:  RBQ3DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.4, diam @ breast
 COLUMN-NAME:  RBQ4DBH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       > 0.0, -9

Right bank, Quad.1, # trunks
 COLUMN-NAME:  RBQ1NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        count
 DOMAIN:       > 0.0, -9

Right bank, Quad.2, # trunks
 COLUMN-NAME:  RBQ2NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        count
 DOMAIN:       > 0.0, -9

Right bank, Quad.3, # trunks
 COLUMN-NAME:  RBQ3NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        count
 DOMAIN:       > 0.0, -9

Right bank, Quad.4, # trunks
 COLUMN-NAME:  RBQ4NT
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        count
 DOMAIN:       > 0.0, -9

Woody snags amount
 COLUMN-NAME:  WSAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Overhanging vegetation amount
 COLUMN-NAME:  OVAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Undercut banks amount
 COLUMN-NAME:  UBAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Boulders amount
 COLUMN-NAME:  BDAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Sloughs amount
 COLUMN-NAME:  SHAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Macrophytes, emergent amount
 COLUMN-NAME:  MEAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Macrophytes, submerged amount
 COLUMN-NAME:  MSAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Macrophytes, floating amount
 COLUMN-NAME:  MFAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Rubbish, (human) amount
 COLUMN-NAME:  RBAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

Other amount
 COLUMN-NAME:  OTAREA
 REVISED:      94/07/11 (from Units: sq. feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        sq. meters
 DOMAIN:       >= 0.0

---------------------------------------------------------------
TRANSECT POINT TABLE:

Each of the data elements in the table are time-variant results tied
to single point within the transect. Each point within a transect
will be offset from the feature-event point for the station (tied to
the sampling reach and transect).  The offset will be defined with
text identifing the transect number and transect-point number.

Transect-id number
 COLUMN-NAME:  TCTID
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 DOMAIN:       > 0.0

Transect-pnt-id number
 COLUMN-NAME:  TCTPNO
 TIME-VARIANT: no
 STORAGE TYPE: integer
 DOMAIN:       > 0.0
 identifies the sequence number of the point within the
 transect.  Start with '1' for the left-most point in each transect.

Dist. from LEW
 COLUMN-NAME:  LEWDIST
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       > 0.0

Elevation of the streambed
 COLUMN-NAME:  BEDELEV
 REVISED:      94/6/13 (added)
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       positive numbers are feet above NGVD

Depth of water
 COLUMN-NAME:  DEPTH
 REVISED:      94/07/11 (units from feet to meters)
 REVISED:      97/02/07 (domain enlarged to inc. 0)
 REVISED:      97/02/12 (decimals from 1 to 2)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        meters
 DOMAIN:       >= 0.0

Velocity of flow
 COLUMN-NAME:  VELOCITY
 REVISED:      94/07/11 (from Units: ft./sec.)
 REVISED:      97/02/07 (enlarged domain to inc. eddy flow)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     2
 UNITS:        m./sec.   
 DOMAIN:       real (>0 flowing downstream)

Dominant substrate
 COLUMN-NAME:  DOMSUB
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list

Subdominant substrate
 COLUMN-NAME:  SUBSUB
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list

Silt covering
 COLUMN-NAME:  SILT
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       y/n

Embeddedness
 COLUMN-NAME:  EMBED
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 UNITS:        code
 DOMAIN:       0-5 (from Habitat Protocol)
                0 = no gravel, cobble or boulders (GCB)
                1 =   >75% of surface area of GCB covered by fine sediments
                2 = 51-75% of surface area of GCB covered by fine sediments
                3 = 26-50% of surface area of GCB covered by fine sediments
                4 =  5-25% of surface area of GCB covered by fine sediments
                5 =   < 5% of surface area of GCB covered by fine sediments 

-------------------------------------------------------------------------------------------

CHANNEL FEATURE TABLE:

There is one record in the table
for each occurrence of each channel feature in every transect.  For
example, if a transect has two bars, one shelf, and zero islands, there
will be three records in the table, all with the same value of TCTID.

Transect-id number
 COLUMN-NAME:  TCTID
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 DOMAIN:       > 0.0

Channel-feature type
 COLUMN-NAME:   CHFEAT
 TIME-VARIANT:  no
 STORAGE TYPE:  char
 DOMAIN:        ref.list:  bar, shelf, island
 identify the channel-feature type being described

Sequential feature number within transect
 COLUMN-NAME:   FEATNO
 TIME-VARIANT:  no
 STORAGE TYPE:  integer
 DOMAIN:        >0
 used to identify the sequential position of the channel
 feature within a specific transect.  Count the features from the
 left bank (looking downstream) beginning with one.  Start with one
 again for each transect.  For example, if the first transect contains 
 (starting at the left) a shelf, two bars, an island, and a shelf 
 then the data elements would be as follows:
 
 TCTID          CHFEAT          FEATNO
   1            shelf             1
   1            bar               2
   1            bar               3
   1            island            4
   1            shelf             5

Feature width
 COLUMN-NAME:  CFWIDTH
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       >=0.0

Feature-width remark
 COLUMN-NAME:  CFWIDRM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 DOMAIN:       ref.list, see CHWIDRM
 used to qualify the width measurement:  FWIDTH
 
Feature substrate, dominant
 COLUMN-NAME:  DOMSUB
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (see LBDOMSUB)

Feature substrate, subdominant
 COLUMN-NAME:  SUBSUB
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list (see LBDOMSUB)

%area, woody veg.
 COLUMN-NAME:  WVAREA
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        percent area
 DOMAIN:       >=0.0

%area, herb. veg.
 COLUMN-NAME:  HVAREA
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        percent area
 DOMAIN:       >=0.0

--------------------------------------------------------------------

GEOMORPHIC CHANNEL UNIT TABLE:

These data elements are both time-variant and repeat multiple times
in each sampling reach for each time.  Each record in the table describes
observations made of a single geomorphic-channel unit at a sampling reach on a
specified date.

The geomorphic-channel-unit (GCU) sequence number differentiates the
records for the same GCU type found at the same sampling reach on the same
date.

Sampling-reach-identification number
 COLUMN-NAME:  REACHID
 TIME-VARIANT: no
 STORAGE TYPE: char
 REVISED:      9/23/94, 11/4/96 (lengthened)

Geomorphic-channel-unit sequence number
 COLUMN-NAME:  GCUSEQ
 TIME-VARIANT: no
 STORAGE TYPE: integer
 DOMAIN:       >0
identifies occurence of different geomorphic-channel units
of the same type in the same sampling reach during a single visit.  For
example, the first pool described for a given sampling-reach visit is assigned
sequence number '1'. The next pool described for the same sampling-reach visit
is assigned sequence number '2', and so on.  The sequence number is
reset to one for a change of GCU, a change of sampling reach, or a different
visit date.

Sampling-reach-visit date
 COLUMN-NAME:  DATE
 TIME-VARIANT: yes
 STORAGE TYPE: date
 DOMAIN:       valid date
 identifies date of visit to the sampling reach when the GCU's
 were observed.

Geomorphic-channel-unit type
 COLUMN-NAME:  GCUTYPE
 TIME-VARIANT: yes
 STORAGE TYPE: char
 UNITS:        code
 DOMAIN:       ref.list
 reference list includes :  pool, riffle, run

Geomorphic-channel-unit length
 COLUMN-NAME:  GCULEN
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: yes
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       >=0.0

--------------------------------------------------------------------

SAMPLING REACH TABLE:


Sampling-reach-id number
 COLUMN-NAME:  REACHID
 TIME-VARIANT: no
 STORAGE TYPE: char
 REVISED:      9/23/94, 11/4/96 (lengthened)

Distance from station to downstream end of sampling reach
 COLUMN-NAME:  DSRCHEND
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       DS=>0;US=<0
 describe spatial extent of the sampling reach.

Distance from station to upstream end of sampling reach
 COLUMN-NAME:  USRCHEND
 REVISED:      94/07/11 (from Units: feet)
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        meters
 DOMAIN:       DS=>0;US=<0
 describe spatial extent of the sampling reach.
 Sampling-reach length is computed by:
 absolute value of  DSRCHEND minus USRCHEND.

DS-boundary-marker bank
 COLUMN-NAME:  DSBMBK
 TIME-VARIANT: no
 STORAGE TYPE: char
 DOMAIN:       ref. list:  left, right, both

US-boundary-marker bank
 COLUMN-NAME:  USBMBK
 TIME-VARIANT: no
 STORAGE TYPE: char
 DOMAIN:       ref. list:  left, right, both

Sampling-reach-visit date
 COLUMN-NAME:  DATE
 TIME-VARIANT: yes
 STORAGE TYPE: date
 DOMAIN:       valid date

Stream-type code
 COLUMN-NAME:  STRMTYP
 REVISED:      4/94
 TIME-VARIANT: yes
 STORAGE TYPE: integer
 DOMAIN:       ref.list
                1 = straight
                2 = meandering
                3 = braided
                4 = channelized
                5 = pool/riffle

Sampling-reach comments
 COLUMN-NAME:  REACHCOM
 TIME-VARIANT: yes
 STORAGE TYPE: char
 Sampling-reach conditions as well as general comments about the sampling reach.

--------------------------------------------------------------------

SEGMENT DATA TABLE:

All these data are time-invariant attributes of a stream segment.

Study-unit abbrev.
 COLUMN-NAME:  REACHID
 TIME-VARIANT: no
 STORAGE TYPE: char
 DOMAIN:       >0

Stream length
 COLUMN-NAME:  SEGLENG
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        miles
 DOMAIN:       >0.0

Upstream-end river mile
 COLUMN-NAME:  USRMILE
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        miles
 DOMAIN:       > = 0
The difference between USRMILE and DSRMILE is the curvilinear stream
length. Channel sinuosity for the segment is the ratio of curvilinear
length to straight-line length. See DSRMILE and SEGLENTH.

Downstream-end river mile
 COLUMN-NAME:  DSRMILE
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     1
 UNITS:        miles
 DOMAIN:       > = 0

Upstream-end elevation
 COLUMN-NAME:  USELEV
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        feet above NGVD
 DOMAIN:       above NGVD > 0.0; below NGVD < 0.0
 Elevation of the stream channel at the upstream end of the segment.
 Used to calculate segment slope.

Downstream-end elevation
 COLUMN-NAME:  DSELEV
 TIME-VARIANT: no
 STORAGE TYPE: real
 DECIMALS:     0
 UNITS:        feet above NGVD
 DOMAIN:       above NGVD > 0.0; below NGVD < 0.0
 Elevation of the stream channel at the downstream end of the segment.
 Used to calculate segment slope.

Downstream link
 COLUMN-NAME:  DSTRLINK
 TIME-VARIANT: no
 STORAGE TYPE: integer
 DOMAIN:       > 1.0
 The magnitude of the stream link of the next downstream confluence.
 It is an additive number describing the spatial relation of a given
 stream segment in a basin.  For example, if two tributaries come
 together, the segment immediately downstream has a link of 2.  If an
 additional tributary empties into a stream with a link number of 2,
 then the resulting downstream link is 3.  In contrast to stream
 order, if to 1st order streams come together they form a 2nd order
 stream.  If an additional 1st order stream empties into the 2nd order
 stream, their resulting downstream order is still 2.  Stream order
 changes only if like ordered streams come together and does not
 account for the magnitude of lower order streams that may enter into
 it.

Sideslope gradient
 COLUMN-NAME:  SIDEGRAD
 TIME-VARIANT: no
 STORAGE TYPE: real
 UNITS:        feet/mile
 DECIMALS:     2
 DOMAIN:       > 0.0
Sideslope or valley gradient is the mean of three measures of the
slope of the valley segment.  Elevations are determined from contour
crossings at the basin boundary and the channel along a line
perpendicular to the stream segment. The difference between the
elevations is determined and divided by the distance, to determine
the side-slope gradient.  These measurements are made at three
positions (either bank) representative of the sideslope gradient
along the segment, and the mean of these three measurements is
recorded.
Determined using a 1:24,000-scale map.

Stream order
 COLUMN-NAME:  ORDER
 TIME-VARIANT: no
 STORAGE TYPE: integer
 DOMAIN:       >= 0.0
  "0" can be used for artificial systems, else X > 0

Stream-order method
 COLUMN-NAME:  ORDERMD
 TIME-VARIANT: no
 STORAGE TYPE: char
 DOMAIN:       reference list
 reference list indicates computation method as well as source-map
 scale by concatenating identifiers from the following two lists.
 Computation-method list:  visual, vector, raster
 Source-map-scale list:  :24k, :48k, :100k, :250k
 For example, stream order determined by visual inspection of a
 1:24,000-scale map woud be qualified by storing 'manual:24k' in
 ORDERMD.

channel sinuosity
 COLUMN-NAME:  SINUOSITY
 TIME-VARIANT: no
 STORAGE TYPE: real
 DOMAIN:       >=1
Column computed from curvilinear stream length divided by straight-line
stream length:  (USRMILE - DSRMILE) / SEGLENG

channel-sinuosity method
 COLUMN-NAME:  SINUOSMD
 TIME-VARIANT: no
 STORAGE TYPE: char
 DOMAIN:       reference list

channel gradient
 COLUMN-NAME:  GRADIENT
 TIME-VARIANT: no
 STORAGE TYPE: real
 DOMAIN:       > 0.0
Column computed from bed-elevation change divided by straight-line stream
length:  (USELEV - DSELEV) / SEGLENG

channel-gradient method
 COLUMN-NAME:  GRADIENTMD
 TIME-VARIANT: no
 STORAGE TYPE: char
 DOMAIN:       reference list

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