More 3D, Chen, Boston, and 4 mile cut

[wishin i was fishin]

you guys asked for it, so here it is. Today wasn't good conditions to fish but went mapping and riding. Made me miss those summers growing up on the Boston.

First two are the Chen, next two are Boston, last two are 4 mile cut.

This will be it for a while, boat is going into the shop so I will be bumming rides.

[alphaman]

Nice!!

[jl8200]

That's pretty cool. I noticed its mostly just the canals and narrow water ways that you have mapped. Just think how fun it will be mapping the entire bay!

[alphaman]

thats the goal. I'll be helping out. But had a problem with my transducer it was mounted in the wrong place so it only recorded when idling.

[Cripley]

Nice

[jl8200]

When yall coming to Big Lake to map it lol?

[wishin i was fishin]

Originally Posted by jl8200

When yall coming to Big Lake to map it lol?

Hopefully soon Cripley! I already have the satellite map of Big Lake done.

I can do the contour map if yall are willing to record sonar logs and send em to me.

All that is needed is a GPS unit that can record sonar and a free Google Drive account.

PM Me if you are interested.

[wishin i was fishin]

Originally Posted by jl8200

That's pretty cool. I noticed its mostly just the canals and narrow water ways that you have mapped. Just think how fun it will be mapping the entire bay!

True, the canals are low hanging fruit, they are easy to map. open areas get more difficult. also the bay is so big mapping will take a while. here are some other areas.

Mud point, cove, and the point.

[cajun bill]

Originally Posted by wishin i was fishin

True, the canals are low hanging fruit, they are easy to map. open areas get more difficult. also the bay is so big mapping will take a while. here are some other areas.

Mud point, cove, and the point.

Wishing, how wide a path is mapped when you log data? I'm guessing that the width of the path is directly proportional to the depth of the water?

[PaulMyers]

Originally Posted by cajun bill

Wishing, how wide a path is mapped when you log data? I'm guessing that the width of the path is directly proportional to the depth of the water?

Correct

[wishin i was fishin]

In Reefmaster you can choose the width you want. For the small areas the map i usually run the maps on 50 meter. Meaning I need to be within 50 meters of a track to fill in data. For the open bay I run them on 100 meter.

If I see an area of intrest I will make multiple passes over the area to get as much detail as I can.

[cajun bill]

Originally Posted by wishin i was fishin

In Reefmaster you can choose the width you want. For the small areas the map i usually run the maps on 50 meter. Meaning I need to be within 50 meters of a track to fill in data. For the open bay I run them on 100 meter.

If I see an area of intrest I will make multiple passes over the area to get as much detail as I can.

So, you don't concern yourself with individual "blips" (which could mean small amounts of structure), you are more concerned with average depth readings? I say that because a 50/100 meter path could certainly miss a hole or even a small reef if it happens to fall outside the cone of your sonar, especially in shallow waters. Just wondering?

[wishin i was fishin]

You have to be familiar with the area before you go. also you do need to make more passes in shallow areas. Also speed plays a difference in the recordings. in the pics below you can see red line is sonar returns. to the left i was going about 20 mph then slowed down to Idle speed. the red dots indicate sonar returns. Notice how they are spread out then, once I slow down you get more returns per foot.

Second Pic shows 31mph, i am getting a return every 11 ft max +/-

if I see a blip, i will go back and map the area in detail at idle speed to get the most information.