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<br />PARAMETER ATTRIBUTE CODES FOR DATA QUALITY <br /> <br />The following parameter codes are recommended for application to all DLG entities <br />in all DLG files to indicate their scale of collection and data source. These <br />data flags will become increasingly useful as DFIRM-DLG studies are published and <br />revised, allowing users to identify corresponding backup data for streams, to <br />identify potential streams for restudy, etc. In addition, this information <br />directly supports the requirements for identification of data quality for Spatial <br />Data Transfer Standards, <br /> <br />The parameter codes would be in the form of two two-digit codes for each entity. <br />These maj or codes for the four data categories are reserved for this use as <br />follows: <br /> <br />Political Areas <br />Map Panel Areas <br />FEMA Hydrography <br />Flood Hazard Zones <br /> <br />418 XXYY <br />428 XXYY <br />438 XXYY <br />448 XXYY <br /> <br />The minor codes would be the same for all data categories and would use the <br />convention: <br /> <br />,','.' <br />,."Cdde XX - Sca~e of Collection Code yy- Source Map <br />" (1:1200) , <br />01 1" - 100 - 199' (1:1200) 01 Reserved <br />02 1" - 200 - 299' (1:2400) 02 Reserved <br />03 1" - 300 - 399' (1:3600) 03 Reserved <br />04 1" - 400 - 499' (1:4800) 04 Reserved <br />05 1" - 500 - 599' (1:6000) 05 Study Contractor/Community <br /> Supplied Work Map <br />06 1" - 600 - 699' (1: 7200) 06 Reserved <br />07 1" - 700 - 799' (1: 8400) 07 Reserved <br />08 1" - 800 - 899' (1:9600) 08 Reserved <br />09 1" = 900 - 999' (1:10,800) 09 Reserved <br />10 1" - 1000 - 1499' (1: 12,000) 10 Printed FIRM <br />15 1" - 1500 - 1999' (1: 18,000) <br />20 1" - 2000 - 3999 (1:24,000) <br />40 1" - 4000 - 7999 (1:48,000) <br />80 1" - 8000 - 11999(1:100,000) <br />90 1" - 12,000' (1:250,000) <br /> <br />It is recommended that these codes be applied as data is collected, if it is <br />feasible and not cost prohibitive to do so. These codes are not mandatory at <br />this time. <br /> <br />10/93 <br /> <br />17 <br />