Видео

No still this work is not published

Yes its possible if you are searching recent data because this satellite stop working from mostly 2017.

Sir it will be very difficult task to identify the dripline but if you have very good high resolution data like drone. then may be it possible.

Thank you very much

It's not possible with sentinel 1 satellite data.

Please download from this below link step.esa.int/main/download/snap-download/

Displacement (symbolized d or s ), also called length or distance, is a one-dimensional quantity representing the separation between two defined points. The standard unit of displacement in the International System of Units ( SI ) is the meter (m).

In SARscape processing, specifically for Differential InSAR (DinSAR), the displacement values represent the amount of surface movement detected between two radar acquisitions. These values are typically in meters (m) and reflect the displacement between two radar images, which can be caused by phenomena such as land subsidence, infrastructure deformation, or tectonic shifts. Units of Displacement Values The displacement values you have (-0.14 m to +0.11 m) are in meters (m). This means the surface has shifted by a range of 0.14 meters to 0.11 meters. Displacement Over Time (12-Day Interval) Since you are working with 12-day data, these values represent the displacement over a 12-day period. The values are calculated based on the difference between two SAR acquisitions that were taken 12 days apart. Therefore: The displacement of -0.14 m to +0.11 m is for the 12-day period. If you wanted to scale this to a per-year basis, you would multiply by the number of 12-day intervals in a year. There are approximately 30.42 days per month on average, so a year would have about 365.25 days. Dividing 365.25 days by 12 gives approximately 30.44 intervals per year. To convert your 12-day displacement values to a per-year basis, you would multiply the displacement range by 30.44. For example: -0.14 m per 12 days × 30.44 = -4.26 m per year +0.11 m per 12 days × 30.44 = +3.34 m per year Thus, the displacement over the entire year would be in the range of -4.26 m to +3.34 m, if you scale it up. Exporting to TIFF When you export the displacement map to TIFF format for map composition, ensure that you specify the coordinate reference system (CRS) and any relevant metadata that can clarify the time frame and spatial scale for your map's users. If you need the displacement data to be shown over a specific spatial extent, be sure to handle the geographic projection and scaling appropriately during export.

@spaceremotesensingandgis5626 sir the 4mtr values are very high......for land displacement........values for dispalcement is in. mm .....

If have have to find velocity than i have to divide displacement by time period .....for ex if my displacemnt for 12 days is 0.48mts. Tha to find velocity to do this 0.48/12. Which is 0.4mts. Which is very less value....in comparison to velocity......if we consider 0.48mtr for 1 day than its is suitable for glacier

@@Dr.MeMer5 Its difficult to tell that as I am not much work on glacier. I will check and let you know if I get any information.

its according to the crop growth you have to select the months.

Yes you can use that

This video is on that only. Can you please mentioned which data you want to download so that I can help you. This video is on how to download sentinel 2 data.

I mean can you also find military ships?

Yes I have one video on ship detection you can check this link ruclips.net/video/JqLAlj0O2-4/видео.html

@@spaceremotesensingandgis5626 but how it will differenciate between a warship and a container. FROM RADAR IT IS POSSIBLE BUT FROM SATELLITE CAN WE CLASSIFY VESSELS?

Yes

@@spaceremotesensingandgis5626 please share links

This may be some trouble shooting issue sent a mail to esri customer care.

Will upload soon

Radiometric calibration need to do. May be that's way value is coming high. I will check the results again. Thanks to mentioned.

Sir, what about the Radar Forest Degradation Index (RFDI) in arcgis pro? And its calculations? The direct tool is seen in arcgis pro, whether this tool uses all the pre-processing in itself?

No calibration may need to do manually

Your words motivating me lots to create more such video like this.

already there over ENVI soon will post over arcgis pro

Thank you

I need to search the data please share your mail id. I I got the data I will share it to you

Thank you very much

Glad to hear that. It will motivating me lots.

Which data you required ?

Its showing in video

Yes you can do that if the data will available.

This is some project data I used. You can download hyperion data for that cehck my video on how to download hyperion data ruclips.net/video/n059Rj0q36M/видео.html

in landsat 9

It should be available

Sure I will do that

Yes it is there

@@spaceremotesensingandgis5626 I think ISRO has a tool to correct the misalignment

Thanks for watching.

@spaceremotesensingandgis5626 your welcome 🙏 excellent 👌

Yes you can try this with vv and vh component, for details you can refer some research papers and read some thing on basic of sar data processing then you will get the idea.

Its not a problem every 6 days you will get image but out side Europe we are getting 12 days 1 scene.

Mostly where 2 first order stream are joining we will take pour-point there

Yes you can do this for forest fire assessment. You can use same landsat satellite other bands to estimate other indices. Check my oldest video you will get all information.

You're welcome!

@@spaceremotesensingandgis5626 do you by chance have any advice on what to do if the resulting raster looks very choppy? I had to use 4 landsat 8 images and one of them seems to carry wildly different values.

I did not understand your question

normal FCC band is fine for this analysis

Yes you can check this full video you will get that idea

Please reply.

Jobs in GIS sector is good in India and in abroad also. as its a booming technology may in future you will get more opportunity. Only you need to upgrade the IT skill with that will be advantage.

@@spaceremotesensingandgis5626 Thank you for your reply. I am very very confused to decide from BIM (Building Information Modelling) Or GIS/GPS. I have searched Khagolam institute for GIS.. in Mumbai. But for that it related they have 1 year course. And I have 2 years gap. Please tell me what to do now.

To analyze deforestation changes over time, you can use satellite imagery from different years. A good approach would be to download historical data, such as Sentinel or Landsat satellite images, from the year you want to examine for deforestation. Afterward, download the most recent images from the same area. By comparing these two datasets, you can assess the changes in forest cover and estimate the extent of deforestation over time. Tools like remote sensing software (such as ArcGISPro, ENVI, or Google Earth Engine) allow you to perform change detection analysis, where you can quantify and visualize the deforestation between the two time periods. This method provides a clear, data-driven understanding of environmental changes, helping inform conservation efforts.

I already have the water polygon for the sea, but you can generate a new sea water polygon using various water extraction techniques. These methods involve processing satellite imagery to identify and extract water bodies, allowing you to create an accurate polygon representation of sea water. Techniques such as spectral water indices (like the Normalized Difference Water Index, NDWI) or classification algorithms can help in isolating sea water areas from other features in the imagery. By applying these techniques, you can refine or update the sea water polygon based on more recent or precise data.

High-resolution satellite images from before 1990 are generally not available. However, if you have access to aerial photographs from that period, it would be possible to extract building information from those images. Aerial imagery, often used before the era of advanced satellite technology, can provide detailed views of the landscape, including buildings. By using modern image processing techniques, you can analyze these aerial photos to identify and extract the structures within the area of interest

You can download the sample images from satellite agency sites. This all data are not free.

Its depends which scale you are comparing

@@spaceremotesensingandgis5626 elevation depends on scale ?

Yes you can calculate the area under flood

@@spaceremotesensingandgis5626 how sir? do you have any other social media that we can chat?

@@FauxJ this is my LinkedIn profile www.linkedin.com/in/dr-surya-deb-chakraborty-20013922/