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for quantitative landscape analysis on a sugar producing Caribbean island. Accuracy and quality issues in using historical maps. Niels Chr. Nielsen, post doc. at Center for Tourism, Innovation and Culture, SDU-Esbjerg:. [email protected] +45 6550 1582.

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For quantitative landscape analysis on a sugar producing caribbean island

for quantitative landscape analysis on a sugar producing Caribbean island

Accuracy and quality issues in using historical maps

Niels Chr. Nielsen, post doc. at Center for Tourism, Innovation and Culture, SDU-Esbjerg:

[email protected] +45 6550 1582


Background centre for maritime and regional studies cmrs at sdu esbjerg
Background: Centre for Maritime and Regional Studies (CMRS) at SDU-Esbjerg

  • CMRS studies the interaction of the oceans and human society. With expertise from historians, archaeologists, ethnologists, and social anthropologists, our research explores the interaction between humans and the sea from the earliest times to the Present.

  • Example projects

  • ”Digital Atlas of Cultural Environments in Denmark”,

  • History of Marine Animal Populations (Census of Marine Life),

  • Digital Mobile Nature- and town walks,

  • Studying the controversy about the national park at Salt River Bay, St. Croix

  • Supporting the developement of a national park in the Danish Wadden Sea area

  • Main theme for the ”St. Croix in past and present” Galathea3-project: Sustainability

  • read more at www.cmrs.dk


A bit about sankt croix
a bit about Sankt Croix at SDU-Esbjerg

http://cas.umkc.edu/StCroix/orientation.htm


Land use and land cover
Land use and land cover at SDU-Esbjerg

  • Land use:

  • The way in which, and for the purposes of which,

  • human beings employ the land and its resources.

Land cover:

The physical state of the land surface.

from Meyer 1995:

Meyer, W.B. 1995. Past and present land use and land cover in the USA. Consequences 1, 1: 24-33


Land use and land cover in a wider context

Driving forces at SDU-Esbjerg

Social context

Land use and land cover in a wider context

Climate Change

(modification)

Land Cover #2

(physical maintenance)

Land Cover #1

Land Cover #3

(change)

(conversion)

(maintenance)

Proximate sources

Land Use #1

Land Use #2

envt. impacts on Driving Forces

From Ojima, Galvin and Turner (1994) and Turner, Skole and Moss (1993)


View from above
View from above at SDU-Esbjerg

St. Croix seen from the International space station (ISS), altitude 400 km, 2001.


Climate
Climate at SDU-Esbjerg

NE trade winds, quite constant over the year


First known map of st croix
First known map of St. Croix at SDU-Esbjerg

French, Lapointe 1671. NB: SSE up.


The quarters of st croix
The “quarters” of St. Croix. at SDU-Esbjerg

  • Coastline, borders and towns digitised from Oxholm’s map


Cronenberg and j gersberg s map compiled 1749 50
Cronenberg and Jægersberg’s map, compiled 1749-50 at SDU-Esbjerg

Drawn at scale appx. 1:30.000

Photograph: Daniel Hopkins, with permission, from

http://cas.umkc.edu/StCroix/mapping/cronenberg.htm


P l oxholm a key figure in the mapping of st croix in the late 18 century
P.L. Oxholm, a key figure in the mapping of St. Croix in the late 18. century

(1753 – 1827, general governor 1815-16)‏


Oxholms topographic map of st croix
Oxholms “topographic” map of St. Croix late 18. century

  • Measured/compiled around 1794, printed in Copenhagen 1799, at a scale of app. 1:60.000

From Daniel Hopkins: http://cas.umkc.edu/StCroix/mapping/framesetOxholm.htm


Subset of the cronenberg jaegersberg map 1750
Subset of the Cronenberg-Jaegersberg map 1750 late 18. century

  • Note plot numbering


Subset of oxholm 1794 map
Subset of Oxholm 1794 map late 18. century




Gcps and geo referencing
GCPs and geo-referencing late 18. century


Digitised data
Digitised data late 18. century


Subset of georeferenced c j map
Subset of Georeferenced C&J map late 18. century

with digitised features: plantation/plot outlines from Oxholm’s map (bold lines)


Subset of georeferenced oxholm s map
Subset of georeferenced Oxholm’s map late 18. century

  • With plot outlines from the C & J map


Land cover time series
Land cover time series: late 18. century

Cronenberg 1749

..Oxholm 1794

..Shaw 1933

& UVI 1999


Land cover statistics from maps
Land Cover Statistics from maps late 18. century

jump to conclusions



Main soil associations on st croix
Main soil associations on St. Croix late 18. century

  • with registered positions of plantation (great) houses 1750, also showing digitized outline of quarters from Oxholm’s map.

jump to conclusions





Terrain slope on sankt croix
Terrain slope on Sankt Croix late 18. century

from USGS terrain model, measured in per cent


Viewpoints and hiding places on st croix 1748
Viewpoints and hiding places on St. Croix 1748 late 18. century

Calculated in GIS from Digital Terrain model, numbers show how many great housesa given point can be seen from (excl. vegetaion)


Product maroon sites
Product: ”maroon sites” late 18. century




Conclusions
Conclusions late 18. century

- We can get some of the way following the historical maps approach

  • Time to think integration with other databases (VISHA)

  • Work in progress: still cell-based modelling to be considered. Socio-economic as well as environmental.

- To wonder: are the map data of use, any added value by having the spatial dimension along with the statistical? GIS relevant as integrating reference for historical information at this level?

Thank you very much.


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