Go Back   Cruiser Log World Cruising & Sailing Forums > Cruising Forums > General Cruising Forum
Cruiser Wiki

Join Cruiser Log Today

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-08-2007, 06:41 PM   #1
Retired Mod
 
Lighthouse's Avatar
 
Join Date: Mar 2007
Home Port: Durban
Posts: 2,984
Thumbs down

Interesting concept - overlaying nav charts on GoogleEarth.

Anyone seen/tried it?

LINK
__________________

__________________


The World Cruising & Sailing Wiki

Help to build this free, online World Cruising Guide.

"Built by cruisers, for cruisers''

I've Contributed to the Cruisers Wiki: Most sections
Lighthouse is offline   Reply With Quote
Old 08-08-2007, 09:03 PM   #2
Admiral
 
Auzzee's Avatar
 
Join Date: Jan 2005
Home Port: Darwin
Vessel Name: Sandettie
Posts: 1,727
Default

Wow! That has the potential to be the greatest single advance in navigation since Columbus was a lad. 680 charts for $50, overlaid and zoomable on seamless satellite photos, free and constant chart updates from Notices to Mariners. I wonder how long before the whole globe is covered.

This appears to be amazing!

David
__________________

__________________
"if at first you don't succeed....Redefine success"!


Auzzee is offline   Reply With Quote
Old 08-09-2007, 04:53 AM   #3
Ensign
 
Join Date: Jan 2005
Posts: 2
Default

Quote:
Originally Posted by Lighthouse View Post
Interesting concept - overlaying nav charts on GoogleEarth.

Anyone seen/tried it?

LINK
I just helped friends sail from the Marshall Islands to Fiji via Tarawa, Kiribati and Funafuti, Tuvalu. The skipper is totally convinced that the overlays with Ozzie Explorer are the way to go - and proceeded to enter Tarawa on the incorrect side of the outer buoy, narrowly avoided a shoal that did NOT appear on the photo in Funafuti Atoll, and nearly ran aground in Fiji! Even with the lat/long added to the photos he was still several feet from the correct position on the overlays - they are just too difficult to adequately interpret - especially in narrow areas where a few feet means the difference from sailing and grounding. And the photos do not show all the dangers - especially the reefs and shallows with blue or green coral growing upon them. The only time I found it valuable was late in the afternoon entering a pass in north Viti Levu, Fiji and we were able to determine we were actually in the pass but couldn't see the dangers in the pass on the photo - that still required a keen eye and polarized lenses. For me - give me a gps, a decent paper chart, and either C-map or a similar system as a back up, a working radar and sunlight - I might be old fashioned but skippered my vessel for 12 years, 5 of them in uncharted South Seas atolls, and managed to remain in the water and not on the reef.
__________________
Rixzene L. Ayers
karmaladen is offline   Reply With Quote
Old 08-09-2007, 12:49 PM   #4
Admiral
 
MMNETSEA's Avatar
 
Join Date: Oct 2004
Posts: 3,067
Default

In preparing a topic in Cruiser Log to discuss marinas and anchorages in S.E. Asia - we used Google earth to provide images of these - however, in doing so we have found that many images are old and do not reflect changes made subsequent to the original acquisition.

A good example is the image provide by Google Earth of the geographic coordinates of where

the Marina " 1 degree 15 Marina " has been established for at least a year.

Check this web site for description of the Marinas location etc :-

http://sg.pagenation.com/sin/One%20Degree%...8399_1.2451.map

Then compare this current Image taken of the exact same location by Google Earth. :-

One_Degree_15_Marina.jpg

On Googles image there is no marina - and if there were it would be on land.

Singapore has reclaimed land to the extent that very few electronic charts have been annotated to show the geographical changes and the same applies to Paper charts.

Therefore, it is hoped that this new navigational aid is all that is being hyped.

Karmaladen's post provides a serious caveat.
__________________
MMNETSEA is offline   Reply With Quote
Old 08-09-2007, 01:02 PM   #5
Admiral
 
Auzzee's Avatar
 
Join Date: Jan 2005
Home Port: Darwin
Vessel Name: Sandettie
Posts: 1,727
Default

My understanding is that only the Google Earth data, and NOAA charts which cover the USA are being claimed as accurate enough for use as an overlay navigation aid at this stage.

David.
__________________
"if at first you don't succeed....Redefine success"!


Auzzee is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sea Of Cortez And New Google Earth/maps Functionality geoffschultz Regional Discussion Topics 2 12-30-2012 12:07 AM
Google Earth Overlay idpnd Cruising & Sailing Wiki Discussion 15 02-05-2010 10:34 PM
An Introduction To Google Earth For Cruisers Lighthouse General Cruising Forum 0 03-20-2009 06:19 PM
Google Ocean Lighthouse The Poop Deck 1 05-31-2008 11:51 AM
ENC charts and Google Earth Spike_dawg General Cruising Forum 1 02-08-2008 07:07 PM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


All times are GMT. The time now is 04:54 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.0