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<br />. <br /> <br />. <br /> <br />. <br /> <br />Island-A closed two-dimensional figure. In a GIS, an island is a unit of land cover lying <br />completely within another land-cover unit. <br /> <br />Kilobyte-A unit of memory representing 1,024 bytes and often designated with the symbol <br />K, as 4Kb or 4 kilobytes. The symbol K is also used to refer to 1,024 words of any specified <br />size. <br /> <br />Layer-The various "overlays" of data, each of which normally deals with one thematic topic. <br />The overlays are registered to each other by the common coordinate system of the database. <br />In a GIS, a layer or a theme represents a specific kind of data. <br /> <br />Legally Dermed Parcel of Land-A parcel of land for which a metes and bounds description <br />or a plat has been recorded. Structure may exist on legally defined parcels ofland. <br /> <br />Letter of Determination Review (LODR)-A FEMA response to a request from a <br />borrower and lender that FEMA provide its concurrence or disagreement with the lender's <br />determination on whether the borrower's building is in the SFHA shown on the effective <br />National Flood Insurance Program map. <br /> <br />Letter of Final Determination (LFD)-The letter in which FEMA announces its final <br />determination regarding the flood hazard information, including (when appropriate) proposed <br />and proposed modified BFEs, presented on a new or revised FIRM, FlS report, and (when <br />appropriate) FBFM for a particular community. In the LFD, FEMA begins the compliance <br />period and establishes the effective date for the new or revised FIRM, FIS report, and/or <br /> <br />Letter of Map Amendment (WMA) -An official determination by FEMA that a property <br />has been inadvertently included in an SFHA as shown on an effective FHBM or FIRM and is <br />not subject to inundation by the I-percent-annua1-chance flood. Generally, the property is <br />located on natural high ground at or above the BFE or on fill placed prior to the effective date <br />of the first National Flood Insurance Program map designating the property as within an <br />SFHA Limitations of map scale and development of topographic data more accurately <br />reflecting the existing ground elevations at the time the maps were prepared are the two most <br />common bases for LOMA requests. <br /> <br />Letter of Map Change-A collective term used to describe official amendments and <br />revisions to National Flood Insurance maps that are accomplished by a cost-effective <br />. administrative procedure and disseminated by letter. <br /> <br />Letter of Map Change Revalidation (LOMC- VALID) Letter-A letter issued by FEMA, <br />immediately before the effective date of a revised FIRM, to notify community officials about <br />LOMAs, LOMR-Fs, and LOMRs that will remain in effect after the FIRM is published. <br /> <br />Letter of Map Revision (LOMR)-A letter issued by FEMA to revise the FIRM, FBFM, <br />and/or FIS report for a community to change in BFEs, floodplain and floodway boundary <br />delineations, and coastal high hazard areas. <br /> <br /> <br />TERMS-16 <br /> <br />CTP COOPl'J,ltllll{ <br />Tee/wu af <br />!',l/tllf'IS <br />