cohort
Walk in the park v mrzlo temo na 80m ? To ni bistri Jadran sredi poletja, ko greš z masko na dih par v m globine.
https://www.cbc.ca/news/investigates/no... As with many charter yachts, the Andromeda was not in the best condition -- our skipper called it "one of the worst boats I've ever sailed with."
It is also pitch black at the bottom of the sea. The multiple scuba tanks gave the divers about 40 minutes to find the pipeline, which means they needed to know precisely where to look.A sonar device was required to locate the pipeline beforehand. The Andromeda did not have this kind of device on board, but our new vessel did.
gemini-exp-1121 pravi, da je čas za spust in potem kontroliran dvig v mrzel Baltik:
Estimating the time for an 80-meter dive in the Baltic Sea requires considering the specific conditions of that environment, in addition to the general factors we've discussed previously. Here's a breakdown:
**Baltic Sea Specific Considerations:**
* **Cold Water:** The Baltic Sea is known for its cold temperatures, especially at depth. Water temperatures can range from 0-10°C (32-50°F) depending on the season and depth. Cold water increases gas consumption and can shorten dive time. Divers will need appropriate thermal protection (drysuits are common).
* **Limited Visibility:** Visibility in the Baltic Sea can be variable and often limited, ranging from a few meters to perhaps 10-15 meters in good conditions. Reduced visibility can slow down descent and ascent rates and make it more challenging to manage equipment and perform tasks.
* **Potential Currents:** While not as strong as in some ocean environments, currents can still be present in the Baltic Sea, particularly in areas with narrow passages or significant freshwater inflow.
* **Wreck Diving:** Many dives in the Baltic Sea are wreck dives. Wreck penetration adds complexity and time to the dive.
**Time Estimate for an 80-meter Dive in the Baltic Sea:**
Let's assume a standard technical dive profile with a planned bottom time:
**Assumptions:**
* **Cold Water:** We'll assume a water temperature of around 5°C (41°F), requiring a drysuit and potentially increased gas consumption.
* **Limited Visibility:** We'll assume moderate visibility of around 5-10 meters.
* **Controlled Descent/Ascent:** 10 meters per minute.
* **Equalization Stops:** 1-2 minutes total during descent.
* **Bottom Time:** 15 minutes (a reasonable bottom time for an 80-meter dive in these conditions).
* **Safety Stop:** 3 minutes at 5 meters.
* **Decompression Stops:** Required and calculated using dive planning software or a dive computer.
**Time Breakdown:**
* **Descent:**
* Descent at 10 meters per minute: 8 minutes
* Equalization stops: 1-2 minutes
* Total Descent Time: 9-10 minutes
* **Bottom Time:** 15 minutes
* **Ascent:**
* Ascent to first decompression stop: 7-8 minutes
* Decompression stops: For an 80-meter dive with a 15-minute bottom time, using conservative decompression algorithms and considering the cold water, decompression stops could be in the range of 15-25 minutes.
* Safety Stop: 3 minutes
* Total Ascent Time: 25-36 minutes
* **Total Dive Time:**
* Descent (9-10 minutes) + Bottom Time (15 minutes) + Ascent (25-36 minutes) = **49-61 minutes**
**Important Notes:**
* **Technical Diving Certification:** An 80-meter dive is a technical dive and requires appropriate training and certification (e.g., TDI, IANTD, PADI TecRec) for deep air or trimix diving.
* **Gas Planning:** Gas planning is critical, especially in cold water. Divers will need to account for increased gas consumption due to cold and depth. The use of nitrox or trimix may be necessary to manage oxygen exposure and narcosis.
* **Dive Computer:** A dive computer is essential for monitoring depth, time, gas pressure, and decompression obligations.
* **Buddy System and Team Diving:** Technical dives are typically conducted with a buddy or a team for safety.
* **Emergency Procedures:** Divers need to have well-rehearsed emergency procedures in place, including gas sharing, lost diver procedures, and emergency ascent techniques.
* **Weather Conditions:** Surface conditions and weather forecasts need to be carefully considered before the dive.
**Conclusion:**
A realistic estimate for an 80-meter dive in the Baltic Sea, including decompression stops and accounting for the cold water and potential limited visibility, would be approximately **49 to 61 minutes**. However, this is just an estimate. The actual dive time could vary depending on the specific dive plan, the diver's experience and gas consumption, and the environmental conditions encountered during the dive. Always prioritize safety and dive within your training and experience limits.
