water. if they re in a dry area, the survival time, as long as the air pocket will hold out, if they are wet, again, within one o two hour, they begin to get exhausted. their ability to help themselves will be deteriorating rapidly. but they can survive for up to six hours. up to six hours. it s been a while now. what do you do in that situation? because it is probably dark. if you re not familiar with this particular vessel, all you re doing is sort of tapping around in the dark. would people stay put or you suggest they try to figure how to make their way out of there? wearing a life jacket, that s going to be difficult. they re going to have to wait for rescue. what they can do is what we call the help position. heat, escape. you try to maintain heat loss from your body. in the help position, basically
that s what 13, 14 hours ago. jennifer, we ve been talking a lot about this, especially with the hunt for the missing plane. what can you tell us about the tides and the water temperatures in that area where this ship went down? the water is very cold. when the incident happened, they were approaching low tide and you have to really keep in mind that we re having a full moon, and so when you have a full moon, the tides are more dramatic than they are on a daily basis. weather outside for that so i, temperature at 55 degrees, winds calm, but weather expected to deteriorate over the next 24 to 48 hours. you have to keep in mind, the waters are very, very cold. the middle of two currents. you have the cold current coming off south korea then you have the warm current going north along south korea. so they are situated right in between that. water temperatures are expected to be anywhere between 50 and 60 degrees. very, very cold. waves right now are about three
right, this is what sidescan sonar looks like. the more detail you want to get, you search a smaller area. they re going to make choices in terms of what frequencies they re using, what kind of detail they want in order to decide can i cover a broad area quickly, or do i have to cover a small area and take even more time but get higher levels of detail. with the side-scan sonar, it s basically looking out from where we are. taking a look at what s around us that way. we re looking sideways. we re pinging now and we re building up as that sound comes back, we re building up an image of different things that are on the seafloor. the image in shallow water has a lot of complexities to it. this image is crisp when you get to deep water like the indian ocean. because there s less movement. right, it s a simple environment for the sonar but a complex environment for the
sticking up. it s at least deep enough to swallow a ferry this size. do we know? we don t know i believe the depth in that area go ahead, peter. i believe it s 90 to 100 feet. at least the early reports suggest 90 to 100 feet. the conditions, you said it s cold, right, but it s fairly choppy, and in your experience with these things, you know, as peter said we re not sure, you know, what was happening inside of the ship. it was probably better for them to get off immediately. but you don t know. this happened 14, 15 hours ago, i would imagine, in darkness, you don t know at that particular point what to do. as peter said, it s up to the people in charge to get you to safety quickly. that s correct. i mean, this is every sea farers worst nightmare. for people on as passengers, irregular sea farers, if you like, their one shot at a