The purpose of this paper is to identify the drag penalties for a number of simple SCUBA configurations. This is achieved through scale model experiments conducted in a wind tunnel. Some comments on the associated energy requirements are made, and from these, the effect on a diver’s bottom time is briefly addressed. The configurations tested include a study of the effect of the equipment configuration and the effect of small changes to the diver incidence.
River diving can place exceptional physical demands on the diver. Thus, river divers should be in good, if not superb, physical condition. Crawling around a river bottom will require upper body strength. Divers should pace themselves and be cognizant of the stamina of the smallest person of the buddy team. Moving against the current can be fatiguing and can rapidly deplete air supply.
CCDRT member train and equip at personal expense. Generous donations from community supporters make a huge difference in our ability to provide public safety services to the county and surrounding communities.
Please consider donating a training course, or a portion of the cost.
Keep your family safe this summer by following these tips from the American Academy of Pediatrics (AAP). For sun and water safety tips, see this tip sheet. Please feel free to use them in any print or broadcast story, with appropriate attribution of source.
Summer Safety Tips: Sun and Water Safety
Keep your family safe this summer by following these tips from the American Academy of Pediatrics (AAP).
Once the final school bell has rung, the pencils and notebooks get packed away and the kids are ready for some summer fun! Children love the hot summer months, because they provide the perfect opportunity to spend lots of time outside. Whether it’s swimming in the pool, hiking through the woods, taking long walks, or going for a bike ride, there is something for everyone, no matter how young or old.
We hope that everyone enjoys this special time of year, but we want to also remind parents that there are potential dangers during the summer months, and it’s important to be aware of what they are. The more information one learns about how to prevent illnesses and injuries, the less likely they will occur.
There are many areas to cover when it comes to summer safety, and we’ll review just a few here. Please keep in mind that this is a brief list of tips. For more information check out the web sites recommended at the end of this article.
Read the rest of this great advice from PBS's Summer Safety Tips for Kids!
Water-related activities are popular for getting physical activity and have many health benefits. Here are some tips to stay safe while having fun.
The Oregon Marine Board has published some interesting stuff here.
"The rivers are yours to discover places, waterways and islands you have not seen. This book will help you to seek out those places, to see what lies down the wandering backwater slough, to know what lies on the other side of the island and around the point. In doing so, you must occasionally leave the safety and security of the main channel. Unexpected encounters with snags, mudbanks and sandbanks might occur, but with caution, such hazards can be avoided.
My disclaimer is this: the charts and your own judgement must be your final authority. You follow the author at your own risk."
As we head into another hot weekend, Columbia Riverkeepers has an article on swimming in the Columbia that may be interesting. They say:
"Much of the Columbia River is safe for water contact recreation, but use caution. Safety is never 100% guaranteed, but there are some things you can do to help protect yourself."
Riverkeepers also publishes the Swim Guide app for iPhone®, iPad®, iPod touch® and Android (2.1 or higher) that makes it easy to find and learn about your favorite swim beaches.
The app uses real time E.coli data collected by Columbia Riverkeeper volunteers to flag Columbia River beaches that are safe or unsafe for swimming, or have no data. While Swim Guide does not consider toxic pollution or other potential environmental concerns, it is a useful tool for people who want to avoid bacterial contamination.
For more information and to download the app, visit www.theswimguide.org
Every region has its specific hazards. You can inform yourself about our region in a variety of ways. The United State Coast Guard is here to help you.
The Coast Guard maintains a recorded bar and weather forecast report at each station. The recording is updated every 3 hours during daylight or when weather conditions change. In addition Coast Guard Station Cape Disappointment can be contacted via VHF-FM Channel 16 for conditions of the bar. New "Restricted Bar" warning signs and lights have been installed at Ilwaco, Chinook, Hammond, and Skipanon boat ramps. If these lights are on... there is some type of safety restriction for the Columbia River bar.
Weather.com has our forecast showing cool & cloudy this weekend, with some rain probable on Sunday. Pretty typical Memorial Day weekend for Portland, right?
Just because the weather's cool doesn't mean you can relax your attention on the water. You can still become dehydrated, especially if you're using adult beverages to "re-hydrate".
Watch your weather reports and if the rain comes in with a bit more force and wind than expected, have a "Plan B" for your water-related activities. Alternate moorage, make sure your equipment is in working order, radio function checks, and keep those cell phones charged up. Do you have your towing insurance up to date and a phone number handy?
Make sure you're staying safe out there!