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Global Area Reference System (GARS)

Global Area Reference System (GARS). Coordinate Systems Analysis Team (CSAT) Office of Military Support (OMS) - Lt Col Pete Renner -. GARS Overview. Introduction History Stakeholders Functional requirements Implementation issues Examples Questions. Purpose.

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Global Area Reference System (GARS)

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  1. Global Area Reference System(GARS) • Coordinate Systems Analysis Team (CSAT) • Office of Military Support (OMS) • - Lt Col Pete Renner -

  2. GARS Overview • Introduction • History • Stakeholders • Functional requirements • Implementation issues • Examples • Questions

  3. Purpose • Propose a response to the Service Chiefs’ request for a “standardized” area reference system • SECDEF directed NGA to “Take the lead in developing a global reference system that meets the requirements of the combatant commanders and Services”

  4. GARS History • Common Geographic Reference System (CGRS) developed for CAOC use in OIF • Dec 2003: ACC receives tasking to provide OPR to coordinate on Summit tasking form CSAF “Define the requirement and include CGRS in NIMA chart production” • Mar 2004: CGRS Conference hosted by the Air Land and Sea Application Center • Aug 2004: AWFC (98 RANW) CGRS Working Group • Sep 2004: HAF/XO tasked ACC/DO for best way to implement CGRS into daily ops • Nov 2004: Service Chiefs agree to implement existing ALSA model as training standard - request NGA develop global solution • Dec 2004: The Service Chief letter is signed and at the CJCS • Mar 2005: D/NGA receives tasking from SECDEF • Mar-Aug 2005: Three working groups • Nov-Dec 2005: Coordination of GARS proposal at AO & GO/FO levels via JS • Jan 2006: D/NGA sends “close-out” memo to SECDEF

  5. GARS Stakeholders • Parties involved with local CGRS • ALSA & Air Warfare Center • Interested parties for global implementation • Service GI+S Staffs – N096, A2/X, Army G2 & USMC • Doctrine developers • ALSA – MTTP Developers • Joint doctrine developers • Air Warfare Center • COCOM GI+S officers • NGA OMS, OGM, P, & E?

  6. Global Area Reference System (GARS) - Functional Requirements - • Scalable down to a minimum 5 x 5 min area • Naming convention needs to be as intuitive as possible – entering argument either 1 deg or 30 min • Areas coincident with map sheet coverage – 30 x 30 and 15 x 15 min areas • Easy comparison between relative positions • Based on Geographics (Latitude and Longitude) • Must be on hard-copy charts – in some form • No inherent operational security measures

  7. Global Area Reference System - Functionality - • Based on the expanded ALSA Common Geographic Reference System (CGRS) model w/a few changes • Origin: 180 E/W & 90S • World sub-divided into 30 min cells • East / West * 1-720 • North / South * AA-QZ • Read OVER - then UP • Quadrant Tiling • 30 minute cells divided into 15 minute quadrants • (numbered (1-4), left to right, top to bottom) • 15 minute quadrants divided into 5 minute keypads • (numbered (1-9), left to right, top to bottom) • 6 Digits (EX: 419 LP 2) defines 15 x 15 min area

  8. GARS Solution – Global Overview 30 minute cell identifier NOTE: 30 minute area divisions too small to show at this scale

  9. GARS Solution – Global Overview 30 minute cell identifier Example: 134LV

  10. 3 2 1 Each Cell Is Sub-Divided Into Four 15 min X 15 min Quadrants 1:50,000 charts = 15 min x 15 min Each Cell Is 30 min x 30 min 1:100,000 charts = 30 min x 30 min 6 5 4 8 9 7 Each Quadrant Can Be Further Sub-divided Into Nine 5 min X 5 min Keypads 2 1 3 4 GARS Solution – Global Overview Cell to Quadrant to Keypad yields 5 min x 5 min cell; takes advantage of existing 1:100K and 1:50K charts AH 006AG AG AF AE AD 006AG3 AC AB 006AG39 AA Current 1:50,000 chart has symbology “+” to denote 5 x 5 keypads 002 001 003 004 005 006 007 008 009 Origin Point 180 E/W & 90S

  11. GARS – Implementation Roadmap • Implementing GARS will require continued NGA-Service/COCOM interaction – work requirements • Updates to Joint doctrine & NGA publications • CJCSI 3900.01B: Position Reference Procedures • JP 2-03: JTTP for GI+S Support to Joint Operations • DMA TM 8358.1: Datums, Ellipsoids, Grids, and Grid Reference Systems • Standards activities • Inclusion in standard NGA production specifications • International standards – NATO STANAGs, etc • Implementation on soft-copy/hard-copy products

  12. GARS - Implementation Roadmap • Plan of Attack: • Develop implementation plan with Services/COCOMs • Infuse into doctrine/policy • Service printing capabilities meet short-term need with CSAT producing GIS layer available on NGA Gateway • Effort level can be managed on a priority basis using chart series and geographic coverage area as discriminators • Will not obsolete any current NGA chart products • Implement as stocks deplete / product editions incremented • Limited chart series – 1:50K / 1:100K / 1:250K? / 1:500K? • Chart body: graticule lines and text labels • Neat-line: text labels along the chart edge • Margin diagram of cells: depicting all cells for the chart • Explanatory reference guidance diagram • Phased implementation

  13. GARS - Implementation Phase 1 • Phase 1 • “DEMO” GIS files currently available • Represents 15 min and 30 min areas • Hidden URL located at: • http://www.earth-info.nga.mil/GandG/coordsys/gars.html • Applications: • Overlay for soft-copy products • Within a GIS or mission planning system

  14. GARS Implementation Phase 1 • Phase 1 (cont) • GUI Lat/Long vs GARS Converter

  15. GARS Implementation Phase 2 • Full Implementation • TBD via upcoming implementation working group VTC with Service/COCOM SMEs • What needs to be added/changed to NGA products? • ONC - no change • TPC - no change • JOG - ???? • TLM50 - ???? • ICM - ????

  16. GARS Implementation Roadmap • Possible Map/Chart Changes • Part of main map/chart (extra lines) • ID’s listed along neat-line • Reference Guidance Diagram • Margin box showing specific ID’s

  17. GARS Reference Guidance World divided into 30 min cells and further divisions can be 15 and 5 min Origin of the reference system is 90S and 180E/W Longitude will be 1 – 720 and Latitude will be AA – QZ 30 minute cell identifier: 345KW 15 minute cell: Use a quadrant over 30 minute cell Numbered 1-4 Left to right, top to bottom 5 minute cell: Use a keypad over 15 minute cell Numbered 1-9 Left to right, top to bottom Sample Reference: 345KW37 30 minute identifier: 345KW represents the longitude 30 minute division 345 represent the latitude 30 minute identifier KW represent the quadrant of the 30 minute cell 3 (15 min identifier) represent the keypad of the 15 minute cell 7 (5 min identifier) GARS Reference Guidance Diagram 1

  18. GARS Margin Box with Specific ID’s 37° JOG Example (30 min GARS ID) 36° 102° 104° 103° 42°45’ TLM Example (15 min GARS ID) 415MB4 416MB3 42°30’ 27°18’ 27°36’

  19. 345KY 346KY 30’ X 30’ cell Cell Designators 345KX 346KX 345KW 346KW GARS Implementation on TPC? • Designator for 30’x30’ cell • Margin diagram of cells • Explanatory diagram similar to WGRS diagram

  20. GARS Implementation on JOG? 30’ X 30’ cell • Designator for 15’x15’ cell • Designator for 30’x30’ cell • Margin diagram of cells Cell Designators 156LN1 156LN2 345KX 346KX 156LN 37° 156LN4 156LN3 345KW 346KW 36° 102° 103° 104°

  21. Know the Earth…Show the Way QUESTIONS???????? NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY THANKS A MILLION!!!!!!!!

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