Vector Data will include those features which can be viewed as points lines or polygons. It can be the Road, buildings, a dam or even a river.
So when talking about the rasta data this is the data that has to be viewed in a form of pixels by pixels we mean pictures.
So the two Geospatial data can be used at the same time or one can be used without the other, it depends on the map that one might be creating, however in most cases vector and raster data are used coincidentally in order to hxave a clear view of what the map is representing.
My field data will be represented in both vector and raster data model. Vector point and polygon data will be used for animal movement and home range. The location of the animals(lizard) will be tracked by using a transmitter. For raster data model, I will be using continuous and thematic both as well. The continuous raster data model will be used for climate change, weather and more on environmental data whereas thematic raster will be used for type of vegetation the lizard perch on.
So in my project I have localities data points for my samples which I can use for Vector model. I use the data to investigate the genetics structure or population connectivity and distribution of Pelagic and deep sea Jellyfish species. However, in an event of Jellyfish bloom occurrence of the same species I would use the data as polygons
In my project, both geospatial models will be used. As for animal’s home range and movement patterns all 3 vector spatial forms will be used. And for vegetation type thematic raster spatial form will be used.
I will use both vector and raster. I use vector while collecting data on the topography of my study area and raster for points counts. I am not too sure if I am getting this well.
Since am always engaged in conservation of wetlands and forest, vector model such as line for transect walk and polygon for patches of the forests and wetlands. Also category model Rasta will be used for vegetation class in these natural resources.
I believe I will use more vector geospacial data as I need to represent villages on QGIS. This can be done in points (to represent individual villages on the map.
For Raster data I would represent the population density for elephants in Zimbabwe in each district. I would create a thematic map showing where there is highest population density of elephants or any other problematic animals and this will help solve problems related to wildlife human conflicts.
For Vector data i would represent the distribution of our national parks an their area in Zimbabwe. This will be ideal for conservationists in Zimbabwe to make decision based on known total area of our national parks and other conservational parks.
For the bird and bat surveys I volunteer for, point vectors can be used to denote the presence of species, and perhaps line vectors to show the movement of the same individual.
I imagine when all the survey data are collected by the project lead then they would create distribution maps where polygon vectors could be used.
I collect wetland locations. I would use a GPS to collect lat/long data. This would be represented as a vector and point types. It is an easy decision to make because it is straight forward. What may seem ambiguous may be other factors affecting the wetland like temperature and rainfall. I would collect these as points because of weather station data locations and interpolate to represent as raster. So, the stations where data about the rain would be in points but the actual rain etc would be interpolated and represented as raster,
The research team I am apart of at Colorado State University of Pueblo often deals with mapping prairie dog colonies and could use both vector and raster geospatial data models. The perimeter of such colonies can be mapped with polygons using the vector data model. Other factors such as the soil type or vegetation productivity of the prairie dog colonies would use raster geospatial models for mapping.
I understood vector models but am still slightly confused at the difference between thematic and continuous raster layers. What are some ways that you all differentiate between the two?
HI Laney, you can represent a number of different parameters within one symbol by for example, having different colours to represent nest box material , but have different sized symbols to represent clutch size.
An alternative would be to have a “figure” (Print Layout) with multiple map items added so that you can represent different parameters on different maps, but all on the single “figure”.
As wildlife officer I deal both with vector and raster data in a form points for animals sightings and lines for mapping movements of species like elephants and with raster thematic data which is mostly vegetation cover.
I’m working with isoscape modeling, so I use both tipes of geospatial data model.
On one hand, vector polygon data to represent Magellanic Penguin foraging areas (discrete data).
I’ll also use raster data to represent the isotope distribution through those areas (continuos data).
Well, since I’ll be using trap cameras, transects and GPS data of wild animals I’ll use raster, vectors and points. Raster of distribution of introduced mammals (continuous data), GPS will give me lines of distribution and area of movements. Trap cameras will give points of where mammals attack Magellanic penguins nests.
Some of the raster data I am collecting is the presence or absence of ravens (thematic), and age classification. The vector point data will be the raven nest GPS location, and number of ravens.
One question I have is, if there are better explanations between the continuous and thematic raster data?
I’ll be using aerial images which will be a raster data set as well as vector data sets in the form of polygons to represent the distribution of different plant species.
I don’t have any of my own field data just yet but I think I would most likely be using vector data models of points to represent observed locations of individuals and raster data models for vegetation (thematic) and climactic (continuous) data.
Both Vector and Raster apply in my area. Location of nesting sites, distribution of animals, location of lodges and camping sites are examples of vector. NDVI, plant and animals density maps are examples of raster.