Summary
Summary Hands On GIS. E-modules, Practicums, Lectures
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Summary of Hands on GIS course (GEO3-4308) 2015/2016. Contains summaries of E-modules (7x Introduction to ArcGIS, 4x Raster Data), Lectures and Seminars.
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,Hands on GisPracticum 1
Bingmaps
areas are stitched together, Airports are hard to photograph because of the no fly zone.
Layout/data view : down left corner
Print set up : Right click outside of map
Data properties: Right click layers
American army is the only one who use the data which is valid for the whole world (UTM)
longitude 6 degrees
latitude 8 degrees
-Google UTM Zones!
What is Gis? (analysis of information)
postal code = area
Letters = arc
house number = point
Gis is based on geographical coordinates (CAD isn't)
-analysis is based on these coordinates
different types of use: how to use the date linked to the society (Talk not behind the pc) or literally
use is to retrieve data.
Components of Gis:
Hardware
Software (licensed important that a lot of people use the same software)
Data (Satellite photos, US data belongs to the people. So it is for free)
Methods (standards different in each country, EU is trying to make this universal)
People (educated people are expensive, more expensive that hardware or software)
How Gis works?
representation of a single data set combined in a map with other data sets.
, Practicum 2 13 may
Dutch Geodata
AHN(actueel Hoogtebestand Nederland)
5x5 m2
According to NAP
Mainly used for water management (Rijkswaterstaat)
Height is mapped by LIDAR (laser mounted on a plane) to 15 cm accuracy
Started for dune control (Coastal LIDAR- every year monitoring)
Signed (defines starting point for example -) integer 16 bit (2^16 possibilities)
Colour is 8bit representive (256 possibilities)
Questions:
- What is the height of the WC van Unnikbuilding? Use the clip result for the query
Geoprocessing (search for tools)- Info - 8350-250(road) (cm) NAP value 81 meters
- What are the X,Y,Z units of the AHN (1)?
X =140 254 meters Y = 455 243 meters Z= 8350-250 cm
- Describe 2 applications of the AHN with the field of Geosciences
Tool for water management and landscape genesis reconstruction
- What is the location of the sun in the hillshade layer?
West
- Calculate a slope map for the Province of Limburg. What are the mean and maximum slopes values
in the mapped area?
L: Nederland/Provincies-Open attribute table-Select limburg-Select slope limburg
Z -Value = 0.01 (NAP is in Cm)
Mean = 2.96
Max = 87.68
AHN2
Ruw =alles (gebouwen) heeft ook een grotere resolutie
Int = Ondergrond
ArcCatalog opent niet gelijk alle rasters waardoor het sneller laad.
Top10NL(Topographic map of the Netherlands
Topographic survey/Cadastre
Scale = 1:5000 - 1:25000
Includes TOP10vector and TOP10roads
In 2005 version only great cities are displayed in great detail
Great for planologic use
Topography contains TOPnlRaster and historical data before 1900
CBS Bodemstatistiek
Since the late 40's data is published on functional land use.
Stored in GIS since 1989
Gives in direct analysis for ground use (Unlike TOP10)
Dutch Soilmap (Alterra) gives the mineral or organic material on the immediate surface
Mainly used in agricultural sector
"Grondwatertrap" gives the deviation in the water table
,Dutch Geomorphological Map (Alterra)
GKN_2008
Natura2000 (LNV) is an ecological network of protected areas in the EU
Since 1979 composed of "Habitats Directive" (SACs) and " Birds Directive" (SPAs).
Watermanagement maps (Waterstaatskaarten)
Scale = 1 : 50.000
Gives detailed image of drainage, water levels, polders, mills and dams
De Waterstaatskaart is followed up by WIS (Waterstaatkundig informatie systeem)
Kleuren?
Nationaal Wegenbestand (NWB)
Scale = 1 : 10.000
Produced by Adviesdienst Verkeer en Vervoer / Topografische Dienst Nederland
OpenStreetMap is a free editable map made by the community
Teleatlas data is available within the ESRI license
It is a Dutch company owned by TomTom
Vector (Lines) based detailed road system
Bonneblaadjes (www.kadaster.nl)
Initial topographic maps (kadasterplans) of the Netherlands (1843).
These "veldminuuts" were projected by cartographer Bonne.
Made of polygons containing the area's name
Scale = 1 : 25.0000
ECW (Enhanced Compression Wavelet) is a compressed image format for aerial or satellite imagery
Statistics : Wijk en buurt register (WBR) CBS
From 1995 called Kerncijfers wijken en buurten
Statistics : CBS-Squares
Difference in geographic, demographic and socio-economic structures.
Squares = vector representation of the raster structure in 100 and 500 meter resolution
Province/ Municipality / Corop gebieden
Administrative mappings of the Netherlands
Landelijk Grondgebruiksbestand Nederland (LGN)
Raster database (25x25 resolution)
Presents land use in 39 classes (specific crop classes)
Updated every 3-5 years
Agrarisch Areaal Nederland (AAN)
Geographic location of Agricultural land use
Digitaal Topografish Bestand (DTB)
Contains digitale topographic information of great rivers and coasts,
and exact locations of all related structures
Scale = 1 : 1000
,XY = RijksDriehoeksnet Z = NAP
Postal codes locations (Areas)
Postal codes are introduced in 1977.
[Number] [Number] [Number] [Number] [Letter][Letter]
Define Region Define District Define Neighbourhood and Street
BAG (including postal codes locations)
"Basisregistratie adressen en Gebouwen" includes the base information of building and addresses.
Public available
Ecotopen van zoete Rijkswateren
Updated every 6 years
Represents a vegetation structure map with additional information (eg. flood risk)
False-color = Information shown in a color which would otherwise not be visible
, Practicum 3 19 may
Model builder
Right click toolbox > new > add model
Reclassing values.
Toolbox> spatial analyst tool > reclass > reclassify (Here you can change values)
Combining two models
0-0
0-1 Xor Or
1-0 Xor Or
1-1 And Or
results in a value of 0,1 or 2
Combinations are called and Boolean
Or = All combined locations
Xor = everything except for shared locations
And = only the shared locations
Important is that the 0 value becomes NODATA
Spatial analyst tools > Conditional
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