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1、Intergovernmental Data SharingWhy bother? Just a lot of extra work, right? In most cases, not really very much work at all - just sharing data with MEGIS, who will then share with feds. Ben efits to towns/counties include that federal data (ce nsus data for example) will align with state and local d
2、ata 一 makes analysis easier for all of us. Fun ding possibilities 一 Federal and state funds ofte n available to bring local data in synch with state and federal data.Funding for data sharing: USGS funding for aerial photos, lidar, hydrographic data EPA funding for watersheds FEMA funding for lidar S
3、tate funding for parcel digitization濾 USGSscience for a changing wcrMLocal 一 State 一 Federal data frameworks Federal level is the National Spatial Data Infrastructure (NSDI) State level is the Maine Geospatial Architecture (MGA), data section Local is the business needs of municipalities and countie
4、sNSDI Framework Themes: Geodetic Control Cadastral Orthoimagery Elevation HydrographyAddresses Transportation Emergency Response Geographic Names State Regulatory Data Landcover/lmperviousnessTypical municipal data: All of MGA, plus Detailed cadastral data: parcels, zoning, planning Assessors data C
5、ounty deeds data Detailed infrastructure Administrative Units濾 USGSscience for a changing wcrMPartnership Opportunity #1 一 US Census Boundary &Annexation Survey (BAS) Goal is to synchronize Census maps with local town boundaries and roads, for delineation of 2019 census blocks and resulting data
6、 products. Census Bureau sends maps to towns/counties for town boundary review. MEGIS is state-level collection point for town boundary updates in GIS. MEGIS feeds updated statewide town boundary layer to Census. MEGIS feeds most current E911 roads data to Census.How to participate: Towns should rec
7、eive BAS letters from Census Review town boundary, report any changes to MEGIS as instructed in the letter Ignore roads on the map, Census will use E911 for final product MEGIS will incorporate boundary changes where both towns agree, but we will not get in the middle of a boundary disputeNSDI Frame
8、work Layer #5 - governmental unitsPartnership Opportunity #2 一 National Hydrography Dataset (NHD) and Water Boundary Dataset (WBD) NHD originally developed with 1:100K scale data, useful at national scale but certainly not for towns. NHD ported to 1:24K scale data for Maine in recent year, much bett
9、er for the local picture, but still not suitable for all. NHD now can utilize local resolution' which is basically 1:5K-1:10K or similar local resolution. Watershed Boundaries are now part of NHD and can be updated Municipalities/Counties that have better hydrographic data than NHD can provide t
10、hose data to MEGIS for eventual inclusion. Online tool to be deployed soon to assist this, will be announced on the Maine GeoNews list.NSDI Framework Layer #4 - hydrographyPartnership Opportunity #3 一 E911 Roads Most towns are already participating Town addressing officers provide updates to MEGIS M
11、EGIS and MEDOT piloting a new process to unify E911 and DOT roads data MEGIS provides data to federal agencies such as USGS, and will be providing data to US Census Bureau for 2019 census.How to participate: Most towns already participating If your town already participates, nothing else needed to d
12、oNSDI Framework Layer #7 - transportation Work with MEGIS E911 staff 1 -800-665-2830Partnership Opportunity #4 一 Parcels/Cadastral Data This effort is still i n its in fancy. Most towns maintain their parcels or tax maps, or have a company do it for them. A few have nothing at all. State maintains p
13、arcel data in unorganized territories (LURC). Counties maintain deeds and transfers. How to bring it all together? Benefits for the public are huge. Feds are interested in parcels/land ownership data.濾 USGSscience for a changing wcrMHow to participate: In Hancock County, MEGIS/GeoLibrary have receiv
14、ed a federal grant to do a pilot project for integrating data. Otherwise, towns can load data into the GeoLibrary portal for sharing (). UMM is helping towns do this. In the next year MEGIS will be developing an online parcel viewer which any town can use if we have their p
15、arcel data.Partnership Opportunity #5 一 Imagery and/or lidar This effort is well developed and has been used several times. V and 2' 2019-2019 GeoLibrary orthophotos 2019/2019 York and Cumberland county orthophotos 2019 Augusta/Manchester photos and lidar 2009 Androscoggin County lidarHow to par
16、ticipate: Town(s) or county(ies) put together funds for aerial photo or lidar collection. Town(s) or county(ies) should talk to their neighbors about collaboration - the larger the area the cheaper the cost. MEGIS and GeoLibrary can help spread the word and find cooperators too.NSDI Framework Layer
17、#2 - digital orthoimageryNSDI Framework Layer #3 - elevation Engage the USGS liaison (Dan Walters) to look for USGS funding match.Partn ership Opport unity #6 一 GNIS (geographic names) This effort is well developed and has been used several times. Geographic names are vetted by USGS and state / local authority asked for in put. USGS makes final decision based on their guidelinesHow to participate: Don't have to do any
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