20220606 21472500 1.0 TRUE TRUE Ortho2017_WebMercator 2017 Orthophoto - 3 inch resolution: This document describes the processes used to create the orthoimagery data produced for the District of Columbia from 2017 digital aerial photography. It was flown in early March, completed on March 8, 2017. DUE TO TECHNICAL DIFFICULTIES, THE DOWNTOWN AREA IS NOT COMPRISED OF TRUE ORTHOIMAGERY. THE CONTRACTOR MINIMIZED BUILDING LEAN USING THE INCREASED SIDELAP OF IMAGERY. The aerial imagery acquisition was flown to support the creation of 4-band digital orthophotography with a 3 inch/0.08 meter pixel resolution over the full project area covering the District of Columbia which is approximately 69 square miles. The contractor received waivers to fly in the Flight Restricted Zone (FRZ) and P-56 areas. The ortho imagery was submitted to DC OCTO in GeoTiff/TFW format tiles following the tile scheme provided by OCTO. MrSID and JPEG2000 compressed mosaics were delivered as well using a 50:1 compression ratio. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters. METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE. ortho Ortho 2017 - Web Mercator DC GIS /9j/4AAQSkZJRgABAQEAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0a HBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDL/2wBDAQkJCQwLDBgNDRgyIRwhMjIyMjIy MjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjL/wAARCACFAMgDASIA AhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQA AAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3 ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWm p6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEA AwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSEx BhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElK U1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3 uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD3+iii gAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKA CiiigAooooAKKK5jxh4wt/DNjuia2uL7co+yNOFfac/Njrjj0oAl8W+KrTw1ZATvIlxcxyfZ2RAw DKByc+7CsfwH42Gt28NhfzSTamdzM4iVUI6jp7e1eJ6nqFzqU0txcSTNukZ1V5Cwj3HoM/54pdLu JId0sbOrJ0KsVPPbIqbj6H1LRXA+AfGsWpWg0+/e1tHto4YLcvcDfcHBU8HvkDp/ervqoQUUUUAF FFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUVheLfEZ8L6MNQFoLrMqx+WZdnXPOcH09 KAGeKvFVj4atVW5lZLi5jk+zYQsCygdfTllrwnXtWude1FdRu2WSZ4gjFV2hcdOnf3qpq+o3eoag 817LKySM7xI82/YGJ+7ntx6dqgYNDbFNyhnYPjgkgeg9/wBfwpCIpdrqQBg9QO1W7AAoMpt69Dya zppWyrqFHJHTH4eme9aGnlntwemD+vpStqV0NGJ5LO7huECLJFKskb/eClTkZH1xXr/g/wAaw6uI NOvZmfVX3scRbV2jJHPTpXic5uFlD90IbaRwSCP8/jSmS5juYnjkkhkHzqYXIOCDnkH3oEfT1FcF 4E8dW+q2i6deCO0ktIooUlnuQWuWxtyAQOeAep613tUAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQA UUUUAFFFFABXL+PtBvvEfhsWOnmMT+ekmZG2jAzn+ddRRQB8p3UTwXE0DcTQOUcL0BBOcflUtp0f c+HA2qrHrn0/z3rrfHXgO90PUkvbOWbUDfSTSOkVuy+VyDgkE9dx546VyLQ3ttie50/UID0MkluR z25xjpSEQSKro4xtfIK4/r+da1oGWFUdlLMAd5+prLBTPnpPvU/eHXJHPTrmrAu/L5KkqVDcoefx +pqrAW5HKq0UsJBMo2sBncuOPof896WWBjIZCCfTPGP88UeYnmAGTAIIVlH09v50R+bIpiDMFOeh z/n/AOvU2GEUM9teQSQsonjYOueQpU8H0PQe1eweC/HCau8emX85l1R2cho4tqFAM9fzrxOaGZ32 SsXdjlivO7/P+elTWvmafMJ4WlikX0bDD8RzUp6gfT9FcT4G8ZRaxZfY7pY7WW0jiiV5bgFpzggn BAI+6D36121WAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABWdrWiWWv2Is79WaAOH2q 2Mkf05rRooA+WL9IdL1u6haErbea0Ss3JXDHaCfTH549qUT2t2picNmPhhtOfwznn6V6l8VtCtjb 2f2HTreN5BK0rRQAFsFDltvXq3X1NeQQ4huxCrHyZOYXHUdQDn8P5Ur2JejNiVU38NtA+UdjjPRu PXFSQEFMMAMd+tVrecm0SSRQ8rkr5YYg5/vAjoAB0p/mmZEIUxIc8dSfTn/Jp3GDyvHqQVJSwVDy RjB5/wA/jUZ8uWdmKsSerEk4PP1x9eKrzumPKGc+noc+3+fenWFvNvKx7mV+kYBLH8PwqQNCw3i/ t/s7BrnzE8pTgDfnivoHw9/bP9l/8T3yvtu8/wCqxjbxjp+Ncv4E8EW+n2hv79Le8a7jhmgWa3Be DgtjLZwfmHTH3a76mhhRRRTAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigCG6to7yznt Zc+XNG0b4ODgjB/nXz18S9FtdA1rytPURxRhANxyeVJ/mK+gNUMq6RetblhMIHMZQZIbacY9818v a7qOq6tqaQ6s7SXm4K25SG9gffmkxS2LNjCE0xbiUF55SeQM7FPIxz7E0kiPMxQoexVy23p1z+vS rE3kPIqiP91BgtuHXgDAFRSRXEjLHbeZ5pBxGiF2b1wB7e1SNIbFDJLJb2USB5XcIoPqSB1r2PwD 4HbSFj1PVIJoNUjZ1CearJsIwPu5Hr3qPwN4BhsrdNT1RYbmS5ihmihaIg2zY3Y5PUZA7dK9Eqkg CiiimAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAV85ePrdrX4qzvMNqvIso5z xgY6V9G189/FmKaT4hTssbsot4wCFJ7UmTIzigu7yOOyKSTXMgRYhw24kAAk8DJx/jXrHgXwKmji LVL+GaHVVLqUMqsoU8D7uR096z/hx4CjsLSDVr+O2uPtMMVxbggloiQGHUcEZFem0JFBRRRTAKKK KACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACsE+ErA+MR4n825+2iLytm5fLx jHTGc/jW9RQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQA UUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFAH/2Q==