Large scale distrlbution of acoustical scattering layers at the Norwegian continental shelf and the Eastern Norwegian Sea

Sarsia ◽  
1997 ◽  
Vol 82 (2) ◽  
pp. 87-96 ◽  
Author(s):  
Thomas Torgersen ◽  
Stein Kaartvedt ◽  
Webjørn Melle ◽  
Tor Knutsen
2019 ◽  
Author(s):  
Sarah Gasda ◽  
Ivar Aavatsmark ◽  
Bahman Bohloli ◽  
Helge Hellevang ◽  
Jan Nordbotten ◽  
...  

2017 ◽  
Vol 2017 (1) ◽  
pp. 2726-2742
Author(s):  
Ståle Jensen

ABSTRACT How can we continuously develop and improve large scale emergency preparedness, such as oil spill response, in times of low oil prices, budget cuts and downsizing? NOFO (Norwegian Clean Seas Association For Operating Companies) has found its path, through modernization and cooperation. When there are spills of crude oil from the petroleum industry at the Norwegian Continental Shelf (NCS) NOFO will perform the oil spill response (OSR) on behalf of the owner of the spill, in practical terms becoming the company’s OSR branch during the incident. NOFO was founded in 1978, as a response to the large blowout at the Bravo field the previous year. Focus on offshore OSR technology and combat strategies has been the main motivation during our almost 40 year’s existence. The last decade has included a significant improvement in our competence and training on near-shore and beach OSR, simultaneously maintaining the unique offshore segment. As part of improving NOFO capacity within large scale, and / or long duration spill situations (e.g. Macondo), NOFO have embraced and implemented ICS (Incident Command System), thus improving our capabilities and capacities through the whole range from offshore to shoreline OSR. Through 2015 and 2016 ICS training and ICS adaptions of previous organizational systems has been prioritized, and new ones have been developed. NOFO personnel have participated in numerous training sessions and exercises with our member companies (operators on the Norwegian continental shelf) nationally and internationally. Through strategic choices of planning and collaboration both internally in NOFO and between NOFO and the Norwegian Coastal Administration (NCA), Global Response Network (GRN), other oil spill Response Organizations (OSROs) and cooperating partners, the number of exercises has increased, the value and output of exercises is improved, and thus the capacity and capability of NOFOs whole range OSR in improved. At the same time, on behalf of our members, NOFO have consumed less money year after year. NOFO is developing and improving our proven OSR capacity and competence, from offshore to shoreline, through increased efficiency, high focus on exercise training, and cooperation with other OSR agencies.


2013 ◽  
Vol 37 ◽  
pp. 5240-5247
Author(s):  
V.T.H. Pham ◽  
E.K. Halland ◽  
I.M. Tappel ◽  
I.T. Gjeldvik ◽  
F. Riis ◽  
...  

2020 ◽  
Author(s):  
Ida Marie Solbrekke ◽  
Nils Gunnar Kvamstø ◽  
Asgeir Sorteberg

Abstract. This study uses a unique set of hourly wind speed data observed over a period of 16 years to quantify the potential of collective offshore wind power production. We address the well-known intermittency problem of wind power for five locations along the Norwegian continental shelf. Mitigation of wind power intermittency is investigated using a hypothetical electricity grid. The degree of mitigation is examined by connecting different configurations of the sites. Along with the wind power smoothing effect, we explore the risk probability of the occurrence and duration of wind power shut-down. Typical large-scale atmospheric situations resulting in long term shut-down periods are identified. We find that both the wind power variability and the risk of not producing any wind power decrease significantly with an increasing array of connected sites. The risk of no wind power production for a given hour is reduced from 10 % for a single site to under 4 % for two sites. Increasing the array-size further reduces the risk, but to a lesser extend. The average atmospheric weather pattern resulting in wind speed that is too low (too high) to produce wind power is associated with a high- (low-) pressure system near the production sites.


Sign in / Sign up

Export Citation Format

Share Document