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THE FOLLOWING IS THE ORIGINAL DATA DOCUMENTATION FROM ARIZONA LAND INFORMATION
SYSTEM (ALRIS), PHOENIX ARIZONA, CONTACT NAME: RON HUETTNER
ALRIS DATA DOCUMENTATION SEPTEMBER 1995 EDITED: 8/6/96 AT THE ADVANCED RESOURCE TECHNOLOGY LAB, THE UNIVERSITY OF ARIZONA, TUCSON, ARIZONA. NAME OF DATA SET: STREAMS DATA TYPE: Vector; Line DESCRIPTION OF CONTENT: Hydrography consisting of linear features i.e. streams. The lakes and springs portion of this data is currently in the developmental stage. FORMAT: Arc/Info DATA SIZE: Data Set 7.5" quad Approximate Megabytes : 120 .06 HISTORY: Converted in the fall of 1988 from U.S.G.S. 1:100000 scale DLG data to ARC format. Since then, multiple and extensive corrections have taken place. Early on, several Arizona agencies have been part of rectification including: attributes, features, edgematching and the re-tiling of the data into the USGS Hydrologic Unit Code (HUC) library tiling format. The Environmental Protection Agency (EPA) have then since added critical attributes to the Arizona database, including: A nationally recognized management link code (the Reach Id), names, and hydrologic information. Arizona since enhanced the theme further by adding ergonomic Descriptive Attribute Codes, Cartographic Order, more Names, and intense Quality Assurance Controls. MAINTENANCE: Ongoing. NOTE: Do not modify the graphics (entity/feature). They are consistent with the EPA and USGS databases. Changes are to be passed through ALRIS to the federal database to maintain a national record to record consistency. PROJECTION: UTM (Zone 12 with -3.2 million meter Y shift (northing)). NOTE: The data set distributed by the U of A has had the y-shift removed. ITEMS: Item name: FNODE# 4,5,B Description: Internal number of the from-node. Item name: TNODE# 4,5,B Description: Internal number of the to-node. Item name: LPOLY# 4,5,B Description: Left polygon number(cover# in PAT). Item name: RPOLY# 4,5,B Description: Right polygon number(cover# in PAT). Item name: LENGTH 4,12,B,3 Description: Length in meters. Item name: STREAMS# 4,5,B Description: This is a unique internally assigned identification number. Item name: STREAMS-ID 4,5,B Description: User assigned identification number. Item name: CU 8,8,I Description: The USGS Cataloging Unit (4th order) of the HUC Code. Item name: SEG 4,4,I Description: EPA River Segment. Item name: MILE 5,5,N,2 Description: Mile Index. Each SEG starts at 0.0 and increases with river mileage . NOTE: The MILE values were intended to and don't accurately reflect river mileage. Item name: PER 1,1,I Description: PERennial Code [1=Intermittent] [2=Perennial] Item name: DAF 1,1,I Description: Descriptive Attribute Feature. [1=Natural Watercourse] [2=Artificial Watercourse] [3=Shoreline] [4=Containment eg. dams] [5=Closure Lines] Item name: DAT 2,2,I Description: Descriptive Attribute Type CODE. Item name: DATNAME 8,8,C Description: Descriptive Attribute Type NAME. Item name: CO 1,1,I Description: Cartographic Order. {1 to 5] For cartographic filtering, not a stream order. Item name: NAME 28,28,C Description: Stream NAME; Sources - EPA, TIGER, and USGS Quads. REDEFINED ITEMS: Item name: RF3RCHID 17,17,C Description: EPA's Reach File 3 ReaCH ID. Item name: AZN 16,16,N,2 Description: AriZona Number. (Starting in second Column of RF3RCHID field) Item name: DAFDAT 3,3,I Description: Descriptive Attribute Codes. (DAF and DAT fields combined) Item name: PERDAF 2,2,I Description: PERennial and Descriptive Attribute codes. (PER and DAF fields combined) Item name: PERDAT 4,4,I Description: PERennial and Descriptive Attribute codes. (PER, DAF, and DAT combined) Item name: REG 2,2,I Description: U.S.G.S. Region. (Order 1 - Columns 1.2 of HUC field) Item name: SUB 2,2,I Description: U.S.G.S. Subregion. (Order 2 - Columns 3.4 of HUC field) Item name: ACT 2,2,I Description: U.S.G.S. Accounting Unit. (Order 3 - Columns 5.6 of HUC field) Item name: CAT 2,2,I Description: U.S.G.S. Cataloging Unit. (Order 4 - Columns 7.8 of HUC field) Item name: REGSUB 4,4,I Description: U.S.G.S. Region and Subregion. (Columns 1 through 4 of HUC field) Item name: REGACC 6,6,I Description: U.S.G.S. Region, Subregion & Accounting Unit. (Columns 1 - 6 of HUC field) Item name: SUBACC 4,4,I Description: U.S.G.S. Subregion and Accounting Unit. (Columns 3 through 6 of HUC field) Item name: SUBCAT 6,6,I Description: U.S.G.S. Subregion, Accounting & Cataloging. (Columns 3 - 8 of HUC field) Item name: ACCCAT 4,4,I Description: U.S.G.S. Accounting Unit and Cataloging Unit. (Columns 5 - 8 of HUC field) ASSOCIATED ATTRIBUTE/LOOKUP TABLES: STREAMS.DLG Item name: MAJOR1 6,6,I Description: (See attached Appendix D) Item name: MAJOR2 6,6,I Description: (See attached Appendix D) Item name: MAJOR3 6,6,I Description: (See attached Appendix D) Item name: MINOR1 6,6,I Description: (See attached Appendix D) Item name: MINOR2 6,6,I Description: (See attached Appendix D) Item name: MINOR3 6,6,I Description: (See attached Appendix D) Item name: PER 1,1,I Description: PERennial Code [1=Intermittent] [2=Perennial] Item name: DAF 1,1,I Description: Descriptive Attribute Feature. [1=Natural Watercourse] [2=Artificial Watercourse] [3=Shoreline] [4=Containment eg. dams] [5=Closure Lines] Item name: DAFNAME 8,8,C Description: Descriptive Attribute Feature NAME. Item name: DAT 2,2,I Description: Descriptive Attribute Type code. Item name: DATNAME 8,8,C Description: Descriptive Attribute Type NAME. Item name: DAM 2,2,I Description: Descriptive Attribute Modifier code. Item name: DAMNAME 8,8,C Description: Descriptive Attribute Modifier NAME. STREAMS.DS2 NOTE: Approximately 95% of EPA's attributes were successfully transferred onto the Arizona database. The following fields, marked with an asterisk '*', were restored to almost 100% accuracy. The remaining fields are only 95% reliable. The items restored to near 100% original accuracy are stored in a separate table, (STREAMS.EPA) for faster access. Definitions: Reach- a distinctly identified lineal element which is hydrological. Transport- reach which is hydrologically connected to other reaches. Item name: CU* 8,8,I Description: Cataloging Unit: Identifies drainage basin in which a reach resides. Item name: SEG* 4,4,I Description: River Segment: This number identifies a main stem, usually comprised of many reaches. Item name: MILE* 5,5,N,2 Description: Marker (Mile) Index: Distance measured from the downstream start of the complete segment to the downstream end of the current reach. Item name: UPMI* 5,5,N,2 Description: Marker Index: distance measured from downstream end to upstream end of current reach. Item name: RFLAG* 1,1,C Description: Routing Flag: marks reach segments as being transport or non-transports. [0= Non-transport reach] [1= Transport reach] Item name: OWFLAG* 1,1,C Description: OpenWater Flag: marks transport reach segment as part of wide river, reservoir, lake, etc... [0= Non-openwater reach] [1= Openwater reach (types A,H,L,M,V,W)] Item name: TFLAG* 1,1,C Description: Terminal Flag: marks reach segment as having no other reach below it. [0= Non-terminal reach] [1= Terminal reach (types T,V,X,Z)] Item name: SFLAG* 1,1,C Description: Start Flag: marks reach segment as a headwater with no reach above it. [0= Start reach] [1= Non-start reach (types E,H,S,X,Z)] Item name: REACHTYPE* 1,1,C Description: One character code to categorize transport & non-transport reaches. (See Hydro Code Table ) Item name: LEVEL* 2,2,I Description: Hierarchial stream order of reach in relation to drainage network. Item name: JUNC* 2,2,I Description: Downstream node of reach that differentiates between convergent and divergent reach junctions. Item name: DIVERGENCE 1,1,I Description: Classifies reaches connected to divergent junctions. (See Hydro Code Table) Item name: USDIR 1,1,C Description: Looking upstream, this is the (L/R) direction of the main network path. Item name: TERMID 5,5,I Description: Unique identifier for terminal reach within a given stream system. Item name: TRMBLV 1,1,I Description: Terminal Base Level: level assigned describing how stream terminates. (See Hydro Code Table) Item name: PNAME* 30,30,C Description: The primary name of reach. Item name: PNMCD* 11,11,C Description: The primary name code of reach. Item name: OWNAME* 30,30,C Description: The open water name of reach. Item name: OWNMCD* 11,11,C Description: The open water name code of reach. Item name: CNAME* 30,30,C Description: Once "Connecting NAME" changed to "Common NAME". Because the field isn't being used yet, Arizona is storing "Census NAMEs" in the field. Item name: CNMCD 11,11,C Description: The Common NAME code of reach. (Not being used) Item name: DSCU 8,8,I Description: The CU of the reach downstream of the current reach. Item name: DSSEG 4,4,I Description: The SEG of the reach downstream of the current reach. Item name: DSMI 5,5,N,2 Description: The MILE code of the reach downstream of the current reach. Definition: Compliment- the reach that flows into the same junction as the current reach. Item name: CCU 8,8,I Description: Compliment CU code. Item name: CSEG 4,4,I Description: Compliment SEG code. Item name: CMILE 5,5,N,2 Description: Compliment MILE code. Item name: CDIR 1,1,C Description: Looking downstream, which side of current reach (L/R) compliment is connected to. Item name: ULCU 8,8,C Description: CU of reach upstream and to left of current reach, facing upstream. Item name: ULSEG 4,4,C Description: SEG of reach upstream and to left of current reach. Item name: ULMI 5,5,N,2 Description: MILE code of reach upstream and to left of current reach. Item name: URCU 8,8,C Description: CU of reach upstream and to right of current reach. Item name: URSEG 4,4,C Description: SEG of reach upstream and to right of current reach. Item name: URMI 5,5,N,2 Description: MILE code of reach upstream and to right of current reach. Item name: SEGL 5,5,N,2 Description: MILE code of reach upstream and to right of current reach. Item name: RFORGFLAG* 1,1,I Description: Reach File Original file FLAG. (1= RF version one, 2= RF version two, 3= RF version three) Item name: ALTPNMCD 8,8,I Description: Alternative link to the USGS GNIS dataset for PNMCD. Item name: ALTOWNMCD 8,8,I Description: Alternative link to the USGS GNIS dataset for OWNMCD. Item name: DLAT* 8,8,N,4 Description: Downhill latitude value for endpoint of current reach. Item name: DLONG* 8,8,N,4 Description: Downhill longitude value for endpoint of current reach. Item name: ULAT* 8,8,N,4 Description: Uphill latitude value for endpoint of current reach. Item name: ULONG* 8,8,N,4 Description: Uphill longitude value for endpoint of current reach. Item name: MINLAT* 8,8,N,4 Description: Minimum latitude value found in digitized trace of current reach. Item name: MINLONG* 8,8,N,4 Description: Minimum longitude value found in digitized trace of current reach. Item name: MAXLAT* 8,8,N,4 Description: Maximum latitude value found in digitized trace of current reach. Item name: MAXLONG* 8,8,N,4 Description: Maximum longitude value found in digitized trace of current reach. Item name: NDLGREC 4,4,I Description: EPA Reach Number. Item name: LN1AT2 4,4,I Description: Line Attribute 1. (See attached Appendix D, Minor1) Item name: LN2AT2 4,4,I Description: Line Attribute 2. (See attached Appendix D, Minor2) Item name: AR1AT2, AR1AT4 4,4,I Description: 1st pair of area attributes. Item name: AR2AT2, AR2AT4 4,4,I Description: 1st pair of area attributes. Item name: UPDATE1 6,6,C Description: Date of the Update 1. Set at initial production. Item name: UPDTCD1 8,8,C Description: Unique Code for a set of updates 1. Item name: UPDTSRC1 8,8,C Description: Code identifying the party performing the updates 1. Item name: UPDATE2 6,6,C Description: Date of the Update 2. Set at future update procedure. Item name: UPDTCD2 8,8,C Description: Unique Code for a set of updates 2. Item name: UPDTSRC2 8,8,C Description: Code identifying the party performing the updates 2. Item name: UPDATE3 6,6,I Description: Date of the Update 3. Set at future update procedure. Item name: UPDTCD3 13,13,I Description: Unique Code for a set of updates 3. Item name: UPDTSRC3 2,2,I Description: Code identifying the party performing the updates 3. Item name: DIVCU 8,8,I Description: CU of divergent reach that gets minor upstream outflow from junc. Item name: DIVSEG 4,4,I Description: SEG of divergent reach that gets minor upstream outflow. Item name: DIVMI 5,5,N,2 Description: MILE code of divergent reach that gets minor upstream outflow. Item name: DLGID 6,6,I Description: Designator link back to original datasets of (AZ, CA, HI). Item name: FILLER 7,7,C Description: Spare filler field. Item name: DIRECTION* 2,2,I Description: Flag indicating whether the original DLG arc (tnode-fnode) direction was flipped while all arc-directions were aligned to downstream directions. Item name: AZFIX* 2,2,I Description: Identifying alteration type while transferring RF3 to AZ dataset. [99= original EPA transfer, 1 and up = Arizona alterations (See Hydro Code Table)] Item name: ANAME* 2,2,I Description: Arizona corrected NAME-field using EPA, TIGER and USGS Quad sources. Item name: CO* 2,2,I Description: Cartographic Order (Graphic filtering function, NOT Stream Order). STREAMS.REL: 1 RELATION =DLG TABLE-ID =streams.dlg DATABASE =info ITEM =RF3RCHID COLUMN =rf3rchid TYPE =ORDERED ACCESS =RO 2 RELATION =EPA TABLE-ID =streams.epa DATABASE =info ITEM =RF3RCHID COLUMN =rf3rchid TYPE =ORDERED ACCESS =RO 3 RELATION =DS2 TABLE-ID =streams.ds2 DATABASE =info ITEM =RF3RCHID COLUMN =rf3rchid TYPE =ORDERED ACCESS =RO Hydro Code Table Reach Types: A Artificial Lake Reach (RF1/RF2 only) An artificial reach within a lake or reservoir inserted in the file to provide connection between input and output reaches of open water. Not carried forward to RF3. B Bi-directional Reach A reach for which the direction of flow is ambiguous. Not assigned during RF3 production. Available for local updates. C Continental Coastline Reach Refers to a reach which represents a coastline on the Atlantic, Pacific or Gulf coasts. E Entry Reach A reach which receives flow from Canada or Mexico. F Falls Reach A reach which is either a waterfall, drop spillway, or a reach of rapids. G Great Lakes Shoreline Reach Refers to a reach which represents a coastline in the Great Lakes. H Headwater Lake Reach A headwater reach, identified as a lake, which has no reaches above it in the reach file. This type of reach has either one or two reaches connected to its downstream end. I Island Shoreline Reach Identifies a reach whose DLG attributes identified it as an island shoreline. L Lake Shoreline Reach A reach which follows the shoreline of a lake other than the Great Lakes. M Artificial Open Water Reach (RF1/RF2 only) An artificial reach within any open water, other than a lake or reservoir, to provide connection between input and output reaches of the open water. Not carried forward to RF3. N Isolated Stream Reach A stream reach not having codes to link it to other reaches. O Apparent Limit Reach A non-transport reach, usually designated by the DLG attributes as a marsh or wetlands. P Indefinite or Intermittent Shoreline Reach A non-transport reach, usually designated by the DLG attributes as a shoreline without definite boundaries. Q Questionable Shoreline Reach A reach which could be either an island or another closed area. R Regular Reach A reach which has upstream and downstream reaches connected to it and which is not classified as any other type of reach. S Start Reach A headwater reach which has no reaches above it in the reach file. This type of reach has either one or two reaches connected to its downstream end. T Terminal Reach A reach downstream of which there is no other reach (for example, a reach which terminates into an ocean, a land-locked lake, or the ground). This type of reach has either one or two reaches connected to its upstream end. U Unknown Reach Reach cannot be classified. V Open Water Terminal Reach A reach which is both a terminal reach and an artificial open water reach. W Wide-River Shoreline Reach A reach which identifies either the Right or Left bank of a wide river. X Terminal Start Reach A reach which is both a terminal reach and a start reach. Z Terminal Entry Reach A reach which is both a terminal reach and an entry reach. Divergence Values: 0 Not part of a divergent junction. 1 Input reach where minor reach is downstream left. 2 Input reach where minor reach is downstream right. 3 Minor reach of a divergence. 4 Combination of divergence values 1 and 3. 5 Combination of divergence values 2 and 3. 6 Major reach of a divergence. 7 Combination of divergence values 1 and 6. 8 Combination of divergence values 2 and 6. Terminal Base Level (TRMBLV): 1 Stream outlet is Atlantic, Pacific, or Gulf of Mexico. 2 Stream outlet is one of the Great Lakes, or the Great Salt Lake. 3 Stream exits from U.S. into Canada or Mexico. 4 Isolated drainage (flows into the ground). Cartographic Order: 1 Arizona's major rivers: Colorado, Verde, Salt, Gila, etc. 2 The main stem of each CU (drainage basin) 3 All Reach File 1 streams. 4 All Reach File 2 streams and streams with names. 5 The remaining balance of streams. The Descriptive Attribute Codes and their respective descriptive names (derived from the USGS Digital line Graph major-minir codes): Dafname (Descriptive Attribute Feature NAME): 1 Natural 2 Artificial 3 Shore 4 Contain 5 Closure Datname (Descriptive Attribute Type NAME): 1 Stream 2 Wash 3 Left Bank 4 Right Bank 5 Ditch 6 Aqueduct 7 Flume 8 Siphon 9 Shore 10 Shore-in (indefinite) 11 Shore-mm (man-made) 12 Apparent 13 Dam 14 Rapids 15 Spillway 16 Closure Damname (Descriptive Attribute Modifier NAME): 1 Closure 2 Channel 3 Underground 4 Elevated 5 Tunnel 6 Underground 7 Earthen Structure |
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