Questions tagged [research]
for questions related to research in the field of GIS systems and software, and developing ideas and concepts within the GIS sphere. Questions on theses and dissertations are in scope but only if the questions fit within the general rules of GIS.SE, that is, they need to show background reading and previous working and be a singular directed question.
27
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Writing about GIS methods on the example of QGIS
I am preparing a thesis that relies heavily on GIS, specifically using the QGIS platform to calculate area extents and similar types of data.
I have only recently learned how to use GIS technology so ...
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4
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1
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QGIS - How to randomly generate 1 point per 2 hectares inside multiple polygons based upon their individual total areas?
For the purposes of creating random survey plot locations in a forest.
I want to randomly generate 1 point(plot) per 2 hectares with a minimum of 100m between each point (plot) inside multiple ...
2
votes
0
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49
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Viewing Angle Effect On Spectral Reflectance Sentinel-2
I am new to remote sensing and would like resources and literature explaining the effect of viewing angle on spectral reflectance for satellites. I have read the study by Moriya et al translated to ...
- 43
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0
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Multi criteria analysis or k-means clustering
I have more of a research question. If I have point locations (say gas stations) and information about the gas stations (area, type etc) and I want to determine which gas stations would potential be ...
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1
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129
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Creating rectangular polygon grid with even spacing between research plots in QGIS
I am trying to create rectangular plots with even spacing, between research plots, in QGIS. If it were a commercial field, with no spacing between plots, I use the "Create Grid" tools on ...
0
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1
answer
39
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Cloud Mask Assesment without Reference Cloud Mask
We have a cloud mask but we don't have reference data set to assess its accuracy. Without generating a reference dataset by ourselves is it possible to assess the cloud mask's accuracy??
For example; ...
- 139
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0
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61
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How Is 4d Cartography Best Applied to Add Value to the Viewer?
I’m about to write my bachelor thesis in Geography with my main focus being GIS. I’m still in the process of finding a good topic. My supervisor and I narrowed it down to 4D cartography and if and how ...
- 135
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Choosing matching treshold for geometry matching
I have seen that some researches use Otsu's method in order to select a threshold for geometrical matching (One such article). They refer to an article that describes such usage but it is written in ...
- 159
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60
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Top conferences and journals in GIS [closed]
I want to submit a paper for some research that I have done. What are the top conferences and journals in this field?
- 139
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95
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Is there an arXiv-like electronic archive used by the remote sensing community?
Mathematicians, physicists, and (theoretical) computer scientists use arXiv extensively to share their preprints. Indeed, one could say that it's the established way to share one's research.
Is there ...
- 139
2
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1
answer
244
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How to explain the spatial relation of forest loss hotspots with several others variables
I am doing a research in categorizing and ordering of the factor affecting/fostering the creation of the forest loss hotspots. I have following data.
Point location of forest losses from which i ...
- 3,486
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2
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503
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Funny GIS research examples [closed]
for a Dutch studentsmagazine I'm writing an article about gis and how to use it in different Fields of Science Research. I'd like to put some fun stuff in there, like this study on Banksy (http://www....
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3
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177
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Is it scientifically valid to compare landcover/use generated from different types of spatial resolution products
This question is mainly for the validity of the comparison of the classification product of different types of spatial resolution.
Is it scientifically valid to compare very high-resolution image ...
- 3,486
-2
votes
1
answer
97
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Are all remote sensing landcover/use classifications without ground survey scientifically invalid? [closed]
It is on the need of accuracy assessment of classification product.
Land cover/use classification is a prominent analysis in remote sensing. Now the question is if I generate a landcover from LANDSAT,...
- 3,486
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vote
1
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558
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relating land cover raster to vector data
I have a land cover raster basemap that covers different land cover/uses in Europe to 100m resolution and a separate Excel legend file.
Separately I have a point shapefile with the details and ...
- 375
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votes
1
answer
430
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Averaging multiple values to a single value by common field ID
I want to see how accurate/representative a centroid's datapoint value is compared to averaged multiple datapoints values for the same polygon. There are MANY polygons in the same shapefile.
I have a ...
- 65
1
vote
1
answer
227
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Geoserver (automatic labeling generalization) [closed]
I am a Master student looking to do my thesis in cartographic labelling using GeoServer. The thesis topic will be something like "Cartographic Labelling in Real Time Mapping using Web Services.
I am ...
- 107
2
votes
1
answer
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Can I use the Google Elevation API for academic research (licensing)?
I would like to use the Google Elevation API to generate about 5 elevation maps for master's degree research on aircraft collision avoidance. The data would be meshed and used in simulation to ...
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2
votes
1
answer
1k
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Algorithm to find geohashes which satisfy query condition
I have an application where I need to query geohashes by specifying the bounding rectangle. Since geohashes map 2D to 1D is there a method by which I may find the prefixes of all geohashes which ...
- 333
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votes
0
answers
2k
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GIS projects with a raspberry pi [closed]
Does anyone know of a project using a raspberry pi and gis that would work for a research project for a computer science major? I am looking to do a research project involving a raspberry pi and ...
- 39
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votes
1
answer
694
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Is it possible to get the positions of all the stoplights for a given area?
I would like to know if there is a database of longitude and latitude values that locate all stoplights for a given area in the US like a city or a state? How would one go about obtaining this info?
...
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44
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12
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Seeking top tier conference in GIScience?
In many fields, such as computer sciences, it seems to be quite clear which conferences are top tier and how a paper accepted to those conferences compares to journal publications in the same field.
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3
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0
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492
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Linear Referencing Methods: Station Equation origins [closed]
I am working in the pipelines field, and I get in touch with the concept of the linear referencing methods, specifically with station equation method.
I had to do research about this method, I'm ...
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0
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380
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system runtime error from ArcHydro [duplicate]
I am getting the below error during execution of archydro.
"system runtime interoperservices com exception (0x80004005): error HRESULT E_FAIL"
I tried all options available on internet to solve this ...
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1
answer
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Distributed WMS (and TMS, optionally) server architecture, GPU rendering
What if we could use the power of dozens of servers to process a lot of incoming WMS requests? And more, using the power of GPU's to do the job of styling the maps for scalability and speed!
The ...
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votes
2
answers
2k
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Managing error with GPS routes (theoretical framework?)
I'm looking for the appropriate theoretical framework or speciality to help me deal with understanding how to deal with the errors that the GPS system has - especially when dealing with routes.
...
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9
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Main research areas currently under development for Geographic Information Science?
What are the main areas under active research and development for Geographic Information Science (GISc) i.e. what areas need further R&D?
Some "hot-topics" for GISc may be modelling, simulation, ...