24
Comments
WHAT IS HAZARD MAP? |
---|
by Swesha Dhamala | 30-03-2020 15:17 0 |
Any hazard map has its specific purpose. So, hazard mapping is guided by the following three principles: (i) Avoidance In the desk study, pre-field maps are prepared to show the causative factors in the study area with the help of aerial photographs, satellite imageries, topographic maps and geological maps. The pre-field maps thus prepared include slope-morphometry, relative relief, land-use and land-cover, lithology, structure, soil depth, soil type and hydro geological maps. This information helps systematic planning and excursion of field. During the field study, more detailed structural & lithological, soil-depth, soil type, hydrogeological maps are prepared. The details of pre-field maps prepared are verified in the field and modified if necessary. Field studies are carried out to collect the required data-facet to estimate the total hazards of the facet. For each spatial area, some eating has been assigned to each attribute whatever present within the area. The rating values for each map are calculated. After that, according to the superimposition methods, all these thematic maps are overlapped one by one giving their rating values to each map for hazard assessment. These values are added. Then the area is divided into low, medium and high hazard levels on the basis of final values. In this way, the hazard map can be prepared |
|
24 Comments
thank you
Posted 18-08-2020 18:45
Thank you.
Posted 31-03-2020 00:40
Thank you Anjila.
Posted 30-03-2020 22:25
Nice.
Keep on writing.
Yours,
Anjila
Posted 30-03-2020 21:32
Thank you Sunita.
Posted 30-03-2020 21:03
Nice report.
Posted 30-03-2020 19:06
Thank you Sarah.
Posted 30-03-2020 18:17
Hello swesha
Wonderful report!
Keep sharing
Green cheers!
Sarah
Posted 30-03-2020 17:34
Thank you Susma.
Posted 30-03-2020 17:15
learned alot thank you,
hope to learn more
Posted 30-03-2020 17:04
Thank you Jasmine.
Posted 30-03-2020 16:56
Greetings
I do hope you are all good..
Thank you so much for sharing this report on Hazard map!!
I really felt great to go through it as it was a complete new topic for me.
Keep writing and sharing..
Green cheers
Regards
Jasmine karki
Posted 30-03-2020 16:55
Thank you Ramesh.
Posted 30-03-2020 16:20
Thank you Sonika.
Posted 30-03-2020 16:19
Thank you Soyam.
Posted 30-03-2020 16:19
It was new topic for me, keep writing!!
Posted 30-03-2020 16:17
Hello Swesha!!
Nice report!!
Thank you for making us clear about hazards map and how it works!!!
Keep on writing!!
GREEN CHEERS!!
Regards,
Sonika
Posted 30-03-2020 16:14
Thank you GAnga.
Posted 30-03-2020 16:03
Thank you Kajol.
Posted 30-03-2020 16:03
nice report! Keep on writing!!
Posted 30-03-2020 15:57
Nice report Swesha.
Posted 30-03-2020 15:50
Thank you Apsara.
Posted 30-03-2020 15:36
It was new topic for me, keep writing!!
Posted 30-03-2020 15:26
Hazard map is a new topic for me.
Keep writing.
Yours,
Soyam
Posted 30-03-2020 15:20