Skip to main content
Geographic Information Systems
johanvdw's user avatar
johanvdw's user avatar
johanvdw's user avatar
johanvdw
  • Member for 13 years, 11 months
  • Last seen more than a week ago
Profile Activity
Stats
6,199
reputation
1.2m
reached
172
answers
3
questions
Communities
View all
About

Freelance data scientist, scientific programmer and GIS consultant.

Contributor to SAGA GIS, Debian and Ubuntu GIS and the OSGEO live dvd.

I hold a PhD from Ghent University: mapping soils and water table dynamics

Badges
View all badges
This user doesn’t have any gold badges yet.
27
silver badges
42
bronze badges
Top tags
View all tags
70
Score
16
Posts
9
Posts %
67
Score
27
Posts
15
Posts %
65
Score
26
Posts
15
Posts %
52
Score
17
Posts
10
Posts %
50
Score
12
Posts
7
Posts %
46
Score
14
Posts
8
Posts %
Top posts
View all questions and answers
38
Why does GPS positioning require four satellites?
Jul 30, 2011
26
Given a terrain, how to draw the stream flow path?
Sep 15, 2011
25
Identifying Coordinate System of Shapefile when Unknown?
Oct 3, 2013
18
Calculating Topographic Ruggedness Index in ArcGIS Desktop?
Feb 11, 2011
15
Why is the 'straight line' path across continent so curved?
Mar 6, 2011
13
Displaying cross-sections on a web page
Mar 26, 2012
12
Opensource solutions for finishing maps
Jul 4, 2012
11
Platforms for repetitive automated mapping?
Feb 19, 2011
11
How could I generate a CRS field inside the GeoJSON object created by Leaflet layer.toGeoJSON?
Dec 17, 2013
11
Open Source Tool capable of reading Esri File Geodatabase (.gdb)?
Dec 9, 2010
Top Meta posts
0
2
3
GIS.SE is one year old
Top network posts
View all network posts
39
Do "probiotics" have health benefits?
30
Is there one (and only one) endurance sport in which women outperform men?
25
Can you be suffocated from being smothered by a pillow?
22
Organic food is worse for the environment because it requires more land than non-organic food
20
Is HIV a sexually transmitted infection?