Change Analysis || Change Detection || Using Unsupervised Classification in ARCMAP Version 10.2.2
Вставка
- Опубліковано 19 вер 2024
- Change detection in GIS is a method of understanding how a given area has changed between two or more time periods. Change detection is helpful for understanding the change in forest coverage, ice sheets, and land use. Change detection involves comparing changes between aerial photographs taken over different time periods that cover the exact same geographic area.
Change detection can be used to measure four different types of change:
Change in the identify of a feature over time. For example, the change in type of retail store at a given location. A local restaurant may go out of business and be replaced by a toy store. The actual physical building hasn’t changed, the type of categorized land use hasn’t change (commercial), but the specific identity of the store has change.
Change of a feature’s location over time. Change detection can be used to track the movement of a feature.
Change of a feature’s shape over time. Change detection can be used to understand shrinkage in a specific specie’s habitat over time or the changes in the shape of a river or lake.
Change in a feature’s size over time. Change detection can also measure the extent of a feature. Does the urban area grow or shrink between two time points.
Please subscribe to our channel and add a comment if you any query on this topic.
Follow us on Social Media:
Facebook IDs : / bhuwon.paudell
/ bhuwan.paudel.739
Facebook Page: / geotechstudio
Twitter id: / bhuwanpaudel96
instagram ids: / iambhuwanpaudel
Landuse Land Cover link:
• Land Use Land Cover Ma...
Landslide Assessment video link:
• How to do Landslide An...
USGS data downloading tutorial video link:
• Download Dem or landsa...
Fire Risk Assessment video link:
• Fire Risk Zonation or ...
Water Delineation Tutorial link:
• How to use a DEM to de...
Georeferencing On ArcMap:
• Georeferencing In ArcG...
keep up the nice work .
Great brother
Great video. I have to do a year to year change analysis for 11 years. However, there are only 3 categories for each year: cropland, grassland and null (0). Do you have any advise on how to manage having the hundreds of thousands of categories of change? I appreciate it. Thanks.
Reclassify it and put the value 0 to unnecessary part and other necessary part as 1 2 or 3.
GeoTech Studio thanks a lot. Is there a way to do the analysis for multiple years at the same time instead of doing year to year?
Dear Sir, I donot think so if there is any such process to automate it . If i found any material on it i will get to you.
@@geotechstudio Thank you brother.
Are you using same landsat image which you downloaded in previous tutorial?
This one is of different place not same as used in previous tutorial
Procedure is same for downloading but the data used is different according to need and situation.
Thankyou
Sir how to assess Assess rate of change of LULC in ArcMap
You can find it by using landsat images of different time period [(2016, 2017,2018) if needed yearly change and so on according to your needs ] according to your need and perform the same task which is shown in tutorial