A nonspatial continuum in which events occur in apparently irreversible succession from the past through the present to the future

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24 views

Time not configuring correctly?

I'm trying to match data in a textfile that contains time, value, and fips code to the cntyidfp part of a map of US counties. However, even though I am able to match the two sets of data together, ...
2
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0answers
48 views

Create circles around a point on a map measuring the radius in hours

Disclaimer: I am not experienced in GIS and hope this question fits in this category. I was wondering whether it is somehow possible to create a circle* around a city, using Google Maps or the like, ...
3
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1answer
36 views

Comparing data from two different time periods

I am trying to compare DWI frequency over the period of 3 years. I want to create 3 maps, with each one showing where DWI's occurred during 2011, 2012, and 2013. I have the point data for this, but I ...
2
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1answer
42 views

Populate field with current time

I am trying to populate a field with the current time. Here is what I tried that did not work: Start editing Open Attribute Table Add Field -> Name: time Type: Date Right Click on Field Name ...
2
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1answer
32 views

How to create a time slider using arcgis javascript that only shows a year at a time?

I am looking at this example on how to create a time slider using the arcgis javascript api. Instead of showing the data cumulative from the start date. I want to just show the data for that ...
0
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1answer
24 views

Maintaining times with points2one in QGIS?

I have a problem that might be trivial, but I really cannot find a solution! I have a csv files with several points (x,y). These points represent the position of different animals at different ...
1
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1answer
43 views

Start and End Dates for CartoDB Torque

I was wondering if there is a way to have CartoDB's torque read end dates for point files, the same way that ArcGIS desktop can. I am trying to plot the foundation of certain cities, and then remove ...
0
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0answers
46 views

Label changing with time slider using arcGIS

I have a list of lat/long locations with a time associated with them. With those locations I did a spatial join to find the total amount of points in each polygon. I would want to do is gradually ...
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1answer
81 views

Creating Time-series (Temporal) Map of NDVI?

Is there a best practice for a cartographer to create a Time-series or Temporal Map ? I have 83 of the NDVI in an imagine format and should I converted them to polygons and populated them and display ...
0
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1answer
64 views

Cartodb: How to make dates appear in Torque time slider

I am trying to use my date column as a time-slider in my cartodb map. But it doesn't appear or seem to be an option. What am I doing wrong? Here's my map: Map Here's my data: Thanks.
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1answer
37 views

Is there a Time Slider feature in MapInfo?

Is there an Time Slider Feature in MapInfo? The only conclusion I have found in my research is that you have to buy the MapInfo Profiler arm?
2
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1answer
123 views

NDVI time series in R — how do I create a time series object from a data frame?

I am doing a time series analysis of NDVI using the bfast package in R. Bfast requires a time series (TS) object. I have successfully created a data frame with the NDVI at various point locations ...
2
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2answers
146 views

Calculate Slope Between Pixels Through Time: A Time Series Trend Analysis

I have a 9 year weekly time series (~500 raster grids of equal cell size and extent). I'm interested in obtaining the regression line slope between pixels (Imagine stacking all 500 grids on top of ...
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0answers
33 views

How do you create a map that has choropleths that will change with a timeslider? [closed]

I have data for different countries over time that I would like to display in a choropleth map with a time slider that plays automatically on click. What is the best way to do this. Thanks.
1
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0answers
114 views

Open source space time series database management system

I am aware of the existence of space time DBMSs such as Druid, InfluxDB or OpenTSDB. Is there anything like it for spatially explicit data? A time series extension for a common spatial DBMS (say, ...
1
vote
1answer
113 views

Why do classic google maps and the modern google maps show different types of driving times?

As I am currently working on a project, where driving times are quit important, I've noticed that classic google maps and modern google maps show different types of car driving times. While the ...
0
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0answers
347 views

Is there a way to calculate driving time/driving duration with google maps api without considering the traffic situation?

I am currently using this VBA-Code, written by Jamie Bull, to calculate both, driving distance, as well as driving duration, between approx. 1.500 villages and a specific shopping center, using excel. ...
1
vote
1answer
108 views

storing date range in PostgreSQL/PostGIS for time parameter in WMS/WFS

Using GeoServer I want to deliver some objects/features with WFS and WMS. The objects and their attributes have a date range during which they are valid. Say, we have street lamps and each street lamp ...
0
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0answers
30 views

Long Time for conversion raster file to vector in QGIS

I'm a new user of QGIS, and I'm tring to convert a .tif file in a vector. To do that I have used the "Raster conversion" option, but it's taking long time. I'm waiting for the conversion since 20 ...
1
vote
1answer
70 views

Does QGIS Server come with time dimension support (WMS, WCS)?

I wanted to know if QGIS Server allows publishing data with time dimension support, in the case of services such as WMS or WCS?. If this is possible, how can I enable this feature?. Thanks for your ...
1
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4answers
617 views

Creating a Time series NDVI map

I would like to create a NDVI Time Series map? How do I do that? The one I probably would like to have similar like this http://proceedings.esri.com/library/userconf/proc02/pap0593/p05931.jpg I ...
2
votes
2answers
310 views

How to use DateDiff() Function across day transition in ArcGIS Field Calculator?

I am trying to calculate the time difference between two fields using the DateDiff() function in minutes. I have successfully calculated the times that fall within the same day but I am having trouble ...
1
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1answer
58 views

How to do spatial join which is also based on time using ArcGIS for Desktop?

I have a time series plot of house sales for 4 years, but in those 4 years some districts change. I was wondering if I need to split the data into 4 layers for each year in order to join them to their ...
1
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1answer
53 views

NetCDF file size calculation

I'm planning to use the NetCDF file format for storing my time-series observation data on a server. I would like to use the "NetCDF-CF" conventions. Before I start writing any scripts for importing ...
2
votes
1answer
242 views

Binding between qgis custom form (qt designer) and date/time field in a spatialite database table

For my attribute table I created a custom form in qt designer. The table has a date field and a time field. In qt designer there are widgets for entering date and time. But what data type is expected ...
4
votes
2answers
117 views

How can I find the difference between two times (hh:mm) in QGIS?

I have a shapefile of crime reports that includes the time a call was received and the time officers arrived on scene. I want to create response times from the difference in these two values. I know ...
1
vote
1answer
72 views

Landsat8 View Imagery Service in ArcMap Layer Time Issue

I'm attempting to work with one of the newer ArcGIS Online subscription imagery services called Landsat 8 Views which allows you to view Landsat data for the US across several dates in 2013. I can ...
0
votes
0answers
47 views

eTrex 10 UTC or GMT time zone

I have an eTrex 10. I'd like my GPS to remain in UTC (or GMT) time zone, but it does not offer this option as far as I can tell. I think "Western European" and "Ignore DST" is equivalent to GMT. Is ...
4
votes
3answers
98 views

Is there a way to store time-bounded geometries in PostGIS?

I work with American Community Survey data. ACS is now releasing new demographic data annually, and a new set of TIGER/Line files to go with it. But the vast majority of the geographies (states, ...
0
votes
1answer
141 views

Geodatabase add current date and time to attribute

Is it possible in Arcmap 10.0 to create a geodatabase feature class that has a date field which auto populates with the current date and time, every time a new feature is created? Is this possible ...
0
votes
0answers
38 views

Can you create a layer containing years of daily data, then extracting a specific area and time frame

So I have a tone of .nc files containing gridded rainfall and precipitation data in daily time steps. The data spans from 1980 to 2005 for all of Ireland. Now what I am hoping to be able to do is to ...
1
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0answers
32 views

Time attribute problems with Network Analyst

My network dataset is in a geographic coordinate system, and when I project into UTM to calculate Miles for a length field to use with my Speed Limits to create a time attribute it does not seem to ...
0
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1answer
69 views

Geoserver, WMS-T and time ranges

I got a case where WMS-T is desired, preferably using GeoServer. The input data contains two date fields with start and end date, which describes a timespan. However, in Geoserver it seems that one ...
1
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0answers
34 views

Handling loading time for WMSGetFeatureInfo [closed]

I've got this code for a WMSGetFeatureInfo on Hover event: info.events.register("getfeatureinfo", this, function (evt){ ('#rastervalue').val(...)... }); my request to Geoserver takes ...
1
vote
1answer
157 views

How do I get an accurate time attribute when importing a GPX layer as a vector

When I import a GPX file in QGIS (as a vector as track points) and I check the time attribute it appears to be 4 hours later than it should be. Interestingly when I take this same GPX file and use ...
1
vote
0answers
37 views

Are there any js libraries for reading OSH data?

I want to do time based mapping on openstreetmap data in the Kathmandu, Nepal area. I think i have two options Using OpenStreetMap Change files (OSC) Using OpenStreetmap History files (OSH) I have ...
0
votes
1answer
79 views

How long should it take to load a point layer with readOGR? [closed]

I am afraid I am quite new to spatial analysis at anything beyond a superficial level, and I have only recently transitioned to utilizing R. I have been quite pleased with the versatility of areal ...
0
votes
2answers
429 views

Using NetCDF for point time-series observations?

I have a large growing dataset of water and climate observations for several years in regular hourly time-step. The number of locations is cca. 1000 locations with latitude, longitude coordinates. At ...
1
vote
0answers
90 views

Summing time spent on effort from point GPS data tracks in grid cells

I have one layer of point data representing GPS tracks collected during vessel surveys (an individual survey is indicated as the time between departing and returning to shore and there can be more ...
0
votes
1answer
335 views

GeoServer + dynamic datapath layer

My app based on Mapserver contains dynamic layers and using PHPMapscript I modify MAPFILE->LAYER->DATA value based on a parameter that comes via GET. Or I could even use RegEXP in the LAYER->DATA ...
4
votes
1answer
816 views

How to reduce time for 'Export to PDF' (or any other alternative to print maps) in Python?

For my work, I designed a tool to create PDF maps with large amount of data, intersected with 5 buffer rings using ArcPy. The job involves intersecting points, selecting points, generating Elevation ...
3
votes
0answers
158 views

Determine 3 and 6 minute fire response times

I'm expecting to get an Excel file with data on previous fire and emergency response times. I was told it will have incident addresses and the response time for each incident (~ 12K incidents). I also ...
3
votes
0answers
211 views

Geoserver WMST Date Format

There is table in SLQ-Server 2008 R2. In this table i have date column with date format like this 2006-09-08 14:39:41.000. Now i make View from this table on Geoserver side but do nothing wiht date ...
4
votes
2answers
463 views

What are alternatives to ArcGIS for Desktop and Google Earth for these requirements?

I currently have a python script that will take in data and output it as a KMZ file, which I then open in Google Earth on my desktop. The data has two views; a 3D polygon tower (clustered data) and ...
1
vote
0answers
148 views

Plotting time-series data in ArcGIS

I'm attempting to produce interpolated plots of water quality time-series data from ArcSDE. This is the data format: OID WELL_ID WELL_NAME SAMPLE_ID SAMPLE_DAT PARAM RESULT ...
9
votes
1answer
244 views

Measuring distances between simultaneous points

I am working with GPS data and so I have UTM's with DATE/Time information. I have 2 groups of species (moose and wolves). I want to join the information from moose to wolves that match in time. So, ...
5
votes
3answers
236 views

GIS file format for space and time data?

I need some advice with GIS file format choice. Here is my problem: I have about 100 stations. At each station water temperature is measured daily for 1 year I want to load this data to QGIS and be ...
22
votes
2answers
1k views

How to represent trend over time?

I have a time series of rasters where the cells of each raster represents some value at a certain time. I'd like to generate a map that highlights the magnitude of positive or negative trends in this ...
3
votes
2answers
149 views

How do I visualize a time and space sequence of events in ArcGIS?

I would like to visualize this scenario: I have 5 weather stations. I would like to present a sequence of rainfall events for them. For example, rain was starts at station 2 at 6:09 and then went to ...
2
votes
1answer
440 views

Adding time dimension to layer in GeoServer

I have a GeoServer installation that is used as a proxy in front of a THREDDS Data Server to be able to add additional metadata to WMS layers (which I haven't found any support for in THREDDS). I ...