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<br />. <br /> <br />Partnership Agreement-An agreement, also referred to as a Memorandum of Agreement, <br />that is signed by FEMA and a community, regional agency, or State agency that wishes to <br />participate in the Cooperating Technical Partners initiative. The Partnership Agreement is a <br />broad statement of principle, emphasizing the value of the National Flood Insurance Program's <br />three components ofinsurance, floodplain management, and mapping. <br /> <br />Physical Map Revision (pMR)-A revision made by FEMA to a FIRM, FBFM, or FIS <br />report based on community-supplied data FEMA issues PMRs when (1) changes resulting <br />from the requested revision are extensive, affecting significant portions of a FIRM panel or <br />multiple FIRM panels; (2) revision will add significant SFHAs to the effective FIRM; or (3) <br />revision will result in an increase in the BFEs and/or regulatory floodway. <br /> <br />Pixel-The smallest discrete element that makes up a digital image. (Short for "picture <br />element" .) <br /> <br />Planimetric Matr-A map representing only horizontal positions from features represented; <br />distinguished from a topographic map by the omission of relief in measurable form. A <br />planimetrically accurate map shows accurate horizontal distances betWeen features, <br /> <br />Point-A level of spatial me.asurement that refers to an object that has no dimension, <br /> <br />. <br /> <br />Point Data-In a vector structure, the data that consist of a single, distinct X, Y coordinate. <br />In a raster structure, the data that consist of single cells. <br /> <br />Polygon-A two-dimensional figure with three or more sides intersecting at a like number of <br />points. (In GIS, a polygon is an area.) <br /> <br />Ponding- The result of runoff or flows collecting in a depression that may have no outlet, <br />subterranean outlets, rim outlets, or manmade outlets such as culverts or pumping stations. <br />Impoundments behind manmade obstructions are included in this type of shallow flooding as <br />long as they are not backwater from a defined channel or do not exceed 3.0 feet in depth. <br /> <br />Position Dilution of Precision (pDOP)-In a study area, an indicator of the positional <br />accuracy that can be derived from the current Global Positioning System satellite geometry, <br />which varies continuously; the smaller the PDOP number, the higher the data quality, <br /> <br />Primary Frontal Dune-A continuous or nearly continuous mound or ridge of sand with <br />relatively steep seaward and landward slopes immediately landward and adjacent to the beach <br />and subject to erosion and overtopping from high tides and waves during major coastal <br />storms. <br /> <br />Probability Density Function (PDF)-A distribution of probability for a continuous random <br />variable. <br /> <br />. <br /> <br />. <br /> <br />TERMS-20 <br /> <br />CTP Cl!Opf'tatmq <br />Tf.cl1nf(.,rf <br />Pnrlflf'lS <br />