Analysis of Relief Diversity. The Example of Saxon Switzerland National Park

Hiba Idris

Supervisor Prof. Dr. Manfred Buchroithner

Institute for Cartography 10.04.23

Objective

Analyze the relief diversity in the study area using the ArcGIS softwareand patch analyst extension

Produce a final output map presents the degree of the relief intensity in area which covering a part of Saxon Switzerland, using ARCMAP. DEM’s and layer files will be included to produce several maps, all data gathered will be organized and compiled in a database

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

The Study Area

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

East Germany, Saxon Switzerland Total area of 81.36 km² Range of Elevation 300 m Krippen, Bad Schandau, and Kirnitzschtal Covered by The National Park Saxon Switzerland

The Study Area Location

The Study Area

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

• The area of interest for this study is a part of Saxon Switzerland National Park Region “Sächsische Schweiz” which is exemplified by the national park region Saxon Switzerland (398 km²), and consists of a national park (93.5 km²) and a surrounding landscape conservation area (287.5 km²)

• The selected study area has a total area of (81.36 km²)

• The topography of the area is characterized by its sandstone rocks “Elbe Sandstone Mountains”, The Elbe River breaks through the mountain range in a steep and narrow valley; therefore, the region involves a complex distribution of rocky mountains, plains, hills, valleys and Elbe valley

• The Saxon Switzerland is an intensively fissured and rocky canyon landscape. The highest peak of the National Park is at 556 meters above sea level but only in short distance to the valley of the Elbe river at 110 to 120 m (Wächter and Boehnert 1998)

u

Color-coded DEM visualization of study area

Data Processing

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

1. Provision of IRS Imagery Provided by Dresden IRP in Arc info format

2. The Raster calculator tool within ARC/MAP

3. Detailed Relive Analyses using Patch Analyst extension of Arc Map

What is Patch Analyst for ArcGIS

Tool for quantifying landscape structure

Extension to the ArcGIS® software system that facilitates the spatial analysis of landscape patches and the modeling of attributes associated with patches

Used for spatial pattern analysis

Includes capabilities to characterize patch pattern and the ability to assign patch values based on combinations of patch attributes

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

The Hexagon Regions Lattice Used In Patch Analyst

What can it be used for ?

Patch Analyst allows the data to be analyzed within three levels of hierarchy:

1. Landscape relates to all the patches, polygons, contiguous cells or shapes in a view or theme

2. Classes relate to all the patches, polygons, contiguous cells or shapes in a theme, view or landscape that have the same value for a given attribute

3. Patches relate to the individual polygons or contiguous set of cells or shapes. Each patch has a separate record or row in the theme attribute table

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Why Relief diversity Index

The practical meaning of the landscape evaluation is spatial development used for the for the tourism activities

The relief diversity index used with set indexes which reflects the aesthetical value of the landscape

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Shannon's Diversity Index (SDI)

• Used to measure relief intensity in categorical data or the proportional abundance of each patch type within the landscape

• only available at the landscape level and is a relative measure of patch diversity

• The advantage of this index is that it takes into account the number of species and the evenness of the elevation classes

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

• ni The number of individuals in species i; the abundance of species i.• S The number of species. Also called species richness.• N The total number of all individuals• pi The relative abundance of each species, calculated as the proportion of individuals of a given species to the total number of individuals in the community:

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Input Data

IRS / 5m x 5m NPSS: DEM /10m x10m NPSS: Regional location map NPSS: Administrative boundaries NPSS: Land use map NPSS: Topographic Maps 1/ 25000

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Spatial Analyst

Patch Analyst

Landscape Fragmentation

Landscape Metrics

Spatial Analyst

Relief Diversity Map

DTM

Spatial Analyst

Patch Analyst Landscape Fragmentation

Spatial Analyst

DEMDEM

Relief Diversity MapRelief Diversity Map

Calculation of the relief diversity index

Applying Spatial Statistics

(by Regions)

Calculation the SHDI Index

Combining

Regions Extraction

Joining tables

Joined table

Individual Region

Set of tables

Author‘s design

AspectSlope Ver. Curvature

Aspect classes Ver. Curvature classesSlope classes

Patches/ Regions

Ranging

Clipping

Shannon's Diversity Index Classes

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Combination of Slope, Aspect and Curvature

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Slope Classes Map

Aspect Classes Map

Vertical Curvature Classes Map

Map of Comined Relief Parameters

Shannon's Diversity Indices

Relief Diversity Map

Relief Deversity

Relief Diversity

The region displays high to very high relief diversity

Low values cover only 5% of the study area (inside the National Park )

High and very high diversity values exclude agricultural and areas and settlements areas

Along the Elbe Valley: high values

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Conclusions

Benefits

Allow to analytically derive morph graphic features (such as slope, aspect, curvature, etc.)

Allow to create value-added map products

The assessment of spatial landscape diversity and relief diversity could be easier and faster

A lot of parameters could be carried out

External nets, regions, analyses units could be exported, then joined with patch tools

possibility to derive small units which could match other statistical parameters

The opportunity to explore such possibilities within Patch Analyst was not hard to perform

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Weak points and limitations

Does not include the landscape fragmentation function

NO tool to represent the final calculated output

Executing some processes requires computing times too long for smaller computers

Embedding of the study

Small exercise dealing with quantization of landscape metrics

Overall objective: landscape aesthetics in relation to the recreational value

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Embedding of the study

•Embedding of the study

•Small exercise dealing with quantization of landscape metrics

•Overall objective: landscape aesthetics in relation to the recreational value

Analysis Of Relief Diversity. The Example of Saxon Switzerland National Park Hiba Idris 10.04.23

Thank you

Thank you