Can you please provide the DEM style some how? I like that gradient, but it is not available on my QGIS, and I am unable to download any STRM files for some reason. Thank you
Hi on an almost related problem. After catchment delineation, how can one group the delineated catchment according to similarity in terms of hydrological response or in terms of any other catchment characteristic?
Hi Xoi Lee Txai, If you just want to give the catchments the same symbols on a map, you could send them all into a single shape file / GeoPackage file and then use a field in the attribute table which contains the characteristic you want to display. If you need to use the catchment as a "cookie cutter" which I do later on in the videos on CHIRPS precipitation and MODIS evapotranspiration, I assume that you could also merge them first. However, I have only done this for adjacent catchments. Not sure if it works for disconnected polygons - like in a group of islands. Hope that answers your question. All the best, Andreas
Hi might lee, these series of videos in QGIS are to show you how to get the key input data you need for a catchment water balance (precipitation/evapotranspiration), which of course is really important if you want to estimate the sustainability of your groundwater resources. i.e., the amount of groundwater which is recharged during an average year. If you extract more than this, you will be taking from storage & eventually your groundwater resource will be depleted. If you want to know how much groundwater is in storage, please have a look at some of the videos I made in the Hydrogeology 101 playlist: ruclips.net/p/PLp1lK6n-xb5O8RnVhcfYvqy1kzU_5IfDF You will need to calculate the total volume of saturated aquifer, and then use the correct storativity value to estimate the available resources. Good luck & all the best, Andreas
This may not look like a hydrogeology video, but in a while you will see what I'm trying to do. The basin water balance is an important topic also for hydrogeologists as you cannot pump more water than what is being recharged, and in many basins surface water and groundwater interact as the same single water resource. e.g., in Afghanistan, most of the groundwater recharge is from surface water, often through irrigation. In the coming videos I will try to explain how you can get the water balance from satellite precipitation & evapotranspiration data using the catchment mapped from the DEM. We will be looking at the Salma dam, but the catchment could be anything you like - for example the catchment of a well or wellfield. All the best, Andreas
@@GeosearchInternational I am not talking about this video, request u to do more videos on hydro Geology. Don't mind may I know what education background u have ? R u a hydro Geologist ?
Hi, I have a BSc in Geology, MSc in hydrogeology and have spent many years doing groundwater exploration. Since 20 years or so I'm working a lot on integrated water resources management, so I don't like to separate groundwater from surface water. For me they are all part of the same resource. That is why I encourage you to also learn QGIS and try to understand the whole water cycle. All the best, Andreas
very nice and useful video
Glad you liked it Eng Hosain! All the best, Andreas
Thank you so much Andreas! for doing this video and your efforts that you exerted are quite appreciated.
It is my pleasure Afrah! I also appreciate that you take the time to write a comment. It helps the video to get more views! All the best, Andreas
Thank you Andreas ,so clear and understandable
You are welcome Vilma! All the best, Andreas
Thanks for sharing fruitful videos
You are most welcome Eng. Zazay! all the best, Andreas
thanks sir this video is very useful
Most welcome Eng. Hamadullah! All the best, Andreas
helpfull
You are welcome Sanj, All the best, Andreas
Thank you sir .
Most welcome! All the best, Andreas
Helpful.. Thank you
You're welcome Taha! All the best, Andreas
Can you please provide the DEM style some how? I like that gradient, but it is not available on my QGIS, and I am unable to download any STRM files for some reason. Thank you
Nevermind! I just found where you provided a link in another comment. Cheers :)
Hi HadidX, Hope you managed solve both issues. All the best, Andreas
Thank you Sir! just about the style of the DEM, where can I found one like one you had used? or color pal? SVP
Hi Sdlcne, It is wiki Schwarzwald
See this video on how to load it: ruclips.net/video/vKdUVjDifDY/видео.html
All the best, Andreas
GJ MR Andreas
Thank you Muhammad! All the best, Andreas
Hi on an almost related problem. After catchment delineation, how can one group the delineated catchment according to similarity in terms of hydrological response or in terms of any other catchment characteristic?
Hi Xoi Lee Txai,
If you just want to give the catchments the same symbols on a map, you could send them all into a single shape file / GeoPackage file and then use a field in the attribute table which contains the characteristic you want to display. If you need to use the catchment as a "cookie cutter" which I do later on in the videos on CHIRPS precipitation and MODIS evapotranspiration, I assume that you could also merge them first. However, I have only done this for adjacent catchments. Not sure if it works for disconnected polygons - like in a group of islands. Hope that answers your question. All the best, Andreas
@@GeosearchInternational thank you i appreciate
Welcome! All the best, Andreas
Nice video but i have a problem i want to know how to quantify the groundwater
Hi might lee, these series of videos in QGIS are to show you how to get the key input data you need for a catchment water balance (precipitation/evapotranspiration), which of course is really important if you want to estimate the sustainability of your groundwater resources. i.e., the amount of groundwater which is recharged during an average year. If you extract more than this, you will be taking from storage & eventually your groundwater resource will be depleted. If you want to know how much groundwater is in storage, please have a look at some of the videos I made in the Hydrogeology 101 playlist: ruclips.net/p/PLp1lK6n-xb5O8RnVhcfYvqy1kzU_5IfDF
You will need to calculate the total volume of saturated aquifer, and then use the correct storativity value to estimate the available resources. Good luck & all the best, Andreas
Hello Andreas will you teach us? Online?
Hi Fayaz, Sorry I am busy with projects at the moment. Hope that you can follow my videos. All the best, Andreas
Nice video.. do more videos on hydro Geology.
This may not look like a hydrogeology video, but in a while you will see what I'm trying to do. The basin water balance is an important topic also for hydrogeologists as you cannot pump more water than what is being recharged, and in many basins surface water and groundwater interact as the same single water resource. e.g., in Afghanistan, most of the groundwater recharge is from surface water, often through irrigation.
In the coming videos I will try to explain how you can get the water balance from satellite precipitation & evapotranspiration data using the catchment mapped from the DEM. We will be looking at the Salma dam, but the catchment could be anything you like - for example the catchment of a well or wellfield. All the best, Andreas
@@GeosearchInternational I am not talking about this video, request u to do more videos on hydro Geology.
Don't mind may I know what education background u have ?
R u a hydro Geologist ?
Hi, I have a BSc in Geology, MSc in hydrogeology and have spent many years doing groundwater exploration. Since 20 years or so I'm working a lot on integrated water resources management, so I don't like to separate groundwater from surface water. For me they are all part of the same resource. That is why I encourage you to also learn QGIS and try to understand the whole water cycle. All the best, Andreas
@@GeosearchInternational OK, Thank u so much.
Welcome! All the best, Andreas