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MEMO -TASK 90.2 <br />irrigating two separate crops during the 2001 irrigation season and the irrigation field <br />boundary was drawn accordingly. This contrasts with a different configuration of fields <br />under the same center pivot at the time of DOQQ aerial photography in 1999 (Figure 2a). <br />c. The third map was the NDVI composite classification product, which reflects irrigated vs. <br />non-irrigated lands, as shown in the example in Figure 2c. These maps were used as a <br />reference in field boundary interpretation and for irrigated vs. non-irrigated determination. <br />2. Interpreting Maps and Drawing Parcel Boundaries. The three map sets described above were <br />used to interpret and manually draw irrigated parcel boundaries. Guidelines for mapping irrigated <br />parcels were as follows: <br />Page 3 of 6 ~l~-verslde Technology, Inc. <br />~~ 4Mrrer Renoarcc~s Engrneer~ng egad cuns.nrmc <br />