Google Earth
Submitted by metroLBfisher on Thu, 2012-05-10 20:28
was just wondering if anyone knew a way to distinguish deep drop offs from reefs, i think i have found a decent spot with a nice drop off within casting distance from the beach but im not sure if it is a massive chunk of reef.
if anyone has experience with reading sattelite images and knows a way to distinguish these things from each other, your help would be much appreciated
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Good things come to those who bait
Caza
Posts: 208
Date Joined: 05/01/11
Bit hard to tell dude best
Bit hard to tell dude best would be go throw a line in or go for a swim
My names mark and i'm addicted to fishing
metroLBfisher
Posts: 457
Date Joined: 08/01/12
yeah, only reason im asking
yeah, only reason im asking is planning on going late tomorrow night on the change of tides, so swimming in the dark is a no go and also wont be able to see obviously being night time. lets hope im right with the spot and dont lose too many rigs. Bring on the land based pinkys!
Good things come to those who bait
hlokk
Posts: 4293
Date Joined: 04/04/08
Nearmap tends to have much
Nearmap tends to have much higher resolution pictures and several dates to choose. Even if it looks like its getting blurry, try still zooming in because just recently I could literally count the bricks in a driveway!
Once you find the spot, try different dates to get the clearest view. Overhead views will tend to show reef and weed pretty similar, so it can be pretty hard to tell which is which (most reef has weed on it or is dark brown, except for some exposed limestone areas). Depending on the area, you might be able to figure out which is more likely. The trick to telling the difference between a drop off and weed is the subtle colour difference (water v weed) and that drop offs tend to have more blurred edges, while the weed will have sharp edges on the pic.
metroLBfisher
Posts: 457
Date Joined: 08/01/12
i also use nearmaps i was
i also use nearmaps i was just reffering to google maps so people would have general idea what the subject was about. Nearmaps is good because yes you have dates to choose from so you can see how the gutters have changed and moved through the different months due to weather.
i agree another thing is you can zoom in quiet far with still a fairly clear image. apperently google maps updates every 6 months?
cheers for the tips though i think the blurred edges and sharp edges should distinguish the two with this spot, and usually reef wont move? so im guessing if it has moved each month then it is a drop off or a gutter?
Cheers,
Jamie
Good things come to those who bait
hlokk
Posts: 4293
Date Joined: 04/04/08
Reef won't move but it can
Reef won't move but it can get covered or uncovered by sand (but usually not covered by weed then), and weed does move. Just need to make your best guess. Otherwise when you get there you should be able to figure it out :p
Google maps may have an update every 6 months but not all the images. Some can be years old, and they're still not as good resolution as nearmaps.
fishon
Posts: 75
Date Joined: 28/04/12
Near maps
Near maps is not free anymore has any one else found this or no of any other good satalite maps which are updated google earth Is over 5 years old ??
fishon
Posts: 75
Date Joined: 28/04/12
Near maps
Near maps is not free anymore has any one else found this or no of any other good satalite maps which are updated google earth Is over 5 years old ??
hlokk
Posts: 4293
Date Joined: 04/04/08
It should still be free but
It should still be free but it seems that lately sometimes the pages stuff up and it sends you to a different page where all the options are not free and exorbitant. Have a look here and you can make sure you get to the free area for personal use: http://forums.whirlpool.net.au/archive/1891696
TonyT
Posts: 501
Date Joined: 09/07/10
i thought that to fishon as i
i thought that to fishon as i had it bookmarked and it wouldnt let me view any maps without signing up, just type nearmaps in again so you go to the homepage and go to the bottom box which is grayed out or orange and says TAKE ME TO THE MAP, PERSONAL USE, tick the term n conditions box and your in, enjoy
fishon
Posts: 75
Date Joined: 28/04/12
Managed to finaly get onto
Managed to finaly get onto the free version you have to creat a account and sign up no sure how long it's going to be free for. It took me a while to find like lhok said it sends you to a site where ALl the options are not free stoked I finaly got into it it is miles better than google earth
7739ian
Posts: 948
Date Joined: 25/06/08
Rort
Nearmaps? what a great tool - but their prices are pure greed. We use it very occaisionaly to get a distance but because we are a business they want 5k a year! Rio Tinto we are not. This is the same reason i shop online in the U.S.