Mapping and GIS TIME Tra T ining ining - SE S P E, P NEUH AUS US N, GERM ANY

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1 Mapping and GIS

2 Maps and Humanitarian assistance

3 Geographic coordinate system A geographic coordinate system is a coordinate system that enables every location on the Earth to be specified by a set of numbers or letters. The coordinates are often chosen such that one of the numbers represents vertical position, and two or three of the numbers represent horizontal position. A common choice of coordinates is latitude, longitude and elevation

4 Geographic coordinate system Greenwich meridian Latitude Equator Longitude Coordinates expressed in: Degrees, Minutes and Seconds: 36º N 24º E Or Degrees (decimal) : N E

5 Quizz.

6 The Babylonian system of mathematics was sexagesimal (base-60) Although it is no longer used for general computation, the sexagesimal system is still used to measure angles, geographic coordinates and time. In fact, both the circular face of a clock and the sphere of a globe owe their divisions to a 4,000- year-old numeric system of the Babylonians The Babylonians were able to make great advances in mathematics because the number 60 is a Highly composite number, having divisors 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60, facilitating calculations with fractions. The Sumerians and Babylonians were pioneers in this respect. 60

7 North (N) o 47, 34,, N, 115 o 47, 34,, W 25 o 47, 34,, N, 115 o 47, 34,, E 40 West (W) East (E) o 47, 34,, S, 115 o 47, 34,, W 25 o 47, 34,, S, 115 o 47, 34,, E South (S)

8 What are the geographic coordinates of these points? 50 o N, 40 o E 20 o N, 110 o W 3 1 Latitude (Degrees) N 2 20 o S, 60 o W 4 10 o S, 130 o E Eq W Longitude (Degrees) E S

9 Geographic Information Systems

10 GIS definition A Geographic Information Systems (GIS) links locational (spatial) and database (tabular) information and enables a person to visualize patterns, relationships, and trends. This process gives and entirely new perspective to data analysis that cannot be seen in a table or list format. A GIS is an integrated collection of: People Methods Software Data: spatial data and tabular related information Hardware: supporting infrastructure used to visualize and analyze spatial relationships A GIS uses geography as its organizing principle. Exemples: MapInfo, ArcGIS, GoogleEarth, Car GPS

11 Thematic layer Urban refugee location Population density Road network Block Elevation Satellite image of camp

12 Example

13 Zaatari Zaatri Zaatri Jordan Jordan (Jan (Feb (Sep 2013) 2012)

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15 Blocks mapped (same address in progres and GIS) Population figures from progres Standards: Shelter & Infrastructure core indicator 1: Surface area per person for a refugee camp Greater than or equal to 45 square meters.

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25 Information Management: bringing skills together Ensuring good control on information dissemination and quality of presentation GIS: Customized maps Public Information Information Management Data Management Collect, record, analyze and visualize quantitative and qualitative data GIS Data: - UNHCR office database - PoC location database, - Entry points, - Road network Filling information gaps for evidence-based decisionmaking and coordination Programme and Protection GIS: Planning maps, thematic mapping Geographic analysis (Before After ) Satellite imagery analysis

26 Source: Philippe Rekacewicz

27 UNHCR-net: Map Catalog

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29 Useful websites COD/FOD cations/data ArcGIS Online

30 For further information, please contact