13.6.2010

אונית נוסעים באחד מדמויי ההוריקן בים התיכון


Voyager in cyclone Valentina
בהקשר לגיורא ריטבו שהבטיח שלא יתכנו הוריקנים בים התיכון סרטון המראה כיצד אונית נוסעים מיטלטלת כזודיאק עד שהסיפון מגיע לקו המים והמדחפים לאויר
youtube יציע לכם גם את הסירטון מתוך האוניה משייט שהנוסעים לעולם לו ישכחו
פרוט וקישורים לגבי המדיקנים Medicanes במאמר המקרה הלא נעים של גלילאו בבלוג הזה

8.6.2010

Unlimited הבית הלבן מאמץ אחריות כספית בילתי מוגבלת למקרה של דליפת נפט


White House Endorses Unlimited Liability Cap For Oil Spillers

First Posted: 06- 7-10 06:00 PM   |   Updated: 06- 7-10 06:18 PM

Democrats in Congress and officials in the White House are making yet another major push to pass legislation to make the liability for oil companies involved in damaging spills unlimited.
On Monday evening, the White House confirmed that it favors the most recent piece of legislation that would drop any numerical ceiling to the amount of money an oil company like BP would have to pay for economic damages caused by a spill. Currently, the cap is $75 million. cont.....

6.6.2010

LMRP on BOP חדשות ישנות מהמפרץ

לפני יומיים המחבר שידוע בכינויו LMRP הורכב בראש ה-BOP לאחר מבצע מורכב של של חיתוך המגביה וצינור המקדח בתוכו המבצע עבר בהצלחה והמיתקן מעביר כמויות של נפט וגז לאונית הקידוח מעליו כמה? שאלה מצויינת שאין לה תשובה בהודעות של bp. במקביל עומדות להתחיל העבודות לגשור איים ויצירת מחסום חול מסביב לדלתה של המיסיסיפי. ישנה מחלוקת בקשר לרעיון
BOP המתקן שמחובר לראש הבאר ואמור היה למנוע התפרצות של נפט וגז אבל כשל כידוע
LMRP Containment Operation Deployed
Release date: 04 June 2010
http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7062653

BP announced today that oil and gas is being received onboard the Discoverer Enterprise following the successful placement of a containment cap on top of the Deepwater Horizon's failed blow-out preventer (BOP). This follows the cutting and removal of the riser pipe from the top of the BOP's lower marine riser package (LMRP).
It is expected to take one or more days for flow rates of oil and gas to stabilize and it is not possible at this stage to estimate how much oil and gas will be captured by this containment system.
All of these operations are complex, involve risks and uncertainties, and have to be carried out by remotely operated vehicles (ROVs) at 5,000 feet under water. Systems such as the LMRP containment cap never before have been deployed at these depths and conditions. The containment system's efficiency, continued operation, and ability to contain the oil and gas cannot be assured.
Preparations continue for the planned enhancements to the containment system as announced on June 1. Work continues on the first relief well, which started on May 2, and the second relief well, which started on May 16. Both wells are still estimated to take around three months to complete from commencement of drilling.
Louisiana Begins Controversial Engineering to Ward Off Oil Spill
Erik Stokstad Science 4 June 2010:
Regardless of when BP finally manages to stop its undersea gusherfrom the Deepwater Horizon, a massive slick will likely remainin the Gulf of Mexico for some time. With public officials desperatefor action, the magnitude of the disaster—the largestoil spill in U.S. history—has inspired an unprecedentedand untested idea for combating it: an extensive sand trap.But scientists are dubious about the project's chance of successand say it could even jeopardize long-term restoration of Louisiana'swetlands, which have been disappearing for decades.

3.6.2010

שיחה על מה שאנו מעוללים לאקוינוסים TED

שימו לב לשני דברים
האחד כל זה עוד לפני שהעליה בחומצויות האוקנוסים השתנתה בהרבה
השני עליית מפלס הים לא תשפיע בהרבה על רוב הים אבל מנגרובים למשל עלולוים להנזק מעלייה קטנה יחסית.





Impacts of Climate Change on  Australian Marine Life 
Part A: Executive Summary

CSIRO Marine and Atmospheric Research 
report to the Australian Greenhouse Office , Department of the Environment and Heritage 
September 2006

6.4 Mangroves 
Ecology 
Mangrove communities are diverse assemblages of trees and shrubs that are found fringing 
much of the tropical and sub-tropical coastline of Australia in sheltered areas, with the most 
extensive communities found in the tropics. The mangrove flora of Australia is one of the most 
diverse globally and these are highly productive systems. Mangroves act as an important buffer 
between land and sea, filtering terrestrial discharge, decreasing sediment loading of coastal 
waters and maintaining the integrity of coastlines. They are also valuable for their role in 
nutrient and carbon cycling. Mangroves act as a nursery and breeding habitat for marine species 
such as fish, crabs and prawns, including many commercially valuable species, and they also 
support a variety of terrestrial species such as bird populations.  

Implications 
Mangroves are under threat from coastal development, river catchment modification and 
pollution. While adapted to cope with salty conditions, mangroves thrive in areas where there is 
plentiful input of fresh water. Sea level rise is now considered a major threat to mangroves; they 
grow on shorelines with a low profile, thus, a small rise in sea level could inundate large areas 
of mangroves. Increases in atmospheric CO2 may enhance mangrove growth, but this will 
depend on other factors such as nutrient availability and salinity levels. Given the role of 
mangroves in coastal systems, conservation of mangroves should be considered a priority 
management strategy in response to climate change threats