Winter darkness: Revealing the secrets of the sea

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Category: Metereología y Oceanografía
Published on Thursday, 25 February 2021 08:28
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Northway.com

On 9 February, R/V Kronprins Haakon departs on a winter process cruise to the Barents Sea to track and measure important processes taking place in the ocean during wintertime. This cruise is led by UNIS professor Frank Nilsen and part of the Nansen Legacy project – Norway’s biggest research project to date.

Frank NilsenUNIS PROFESSOR. NANSEN LEGACY WINTER PROCESS CRUISE LEADER
Tuesday 16. february 2021 - 11:31

Arctic seas have historically been little accessible during winter, but it is during this time of the year that important atmosphere-ocean-processes are taking place. The heat fluxes between the sea and the atmosphere are greatest during winter. These processes are crucial for the Barents Sea for the rest of the year and affects, among others, how

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Hydropower plants in Norway

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Category: Metereología y Oceanografía
Published on Thursday, 25 February 2021 08:05
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 science nordic
 
para ver completo: sciencienorway.com
 
"Are hydro-connected floating solar power plants part of the answer to both the integration of more variable renewable energy and the modernization of old renewable assets? Most probably", according to Stanislas Merlet and Bjørn Thorud. (Photo: PowerUp / Shutterstock / NTB)

Floating solar power connected to hydropower might be the future for renewable energy

OPINION: Hydropower plants need an upgrade. And we need to use more renewable energy sources. The solution? Floating solar power connected to existing hydropower plants.

Stanislas MerletINDUSTRIAL PH.D. CANDIDATE AT THE NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY (NTNU), SENIOR SOLAR POWER CONSULTANT IN MULTICONSULT
Bjørn ThorudCHIEF TECHNOLOGY OFFICER OF SOLAR ENERGY IN MULTICONSULT
Wednesday 18. november 2020 - 10:15

Solar and wind power continue to dominate the renewable energy

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Giant wave north of Scotland breaks world record

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Category: Metereología y Oceanografía
Published on Thursday, 25 February 2021 07:52
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by Stephen Eighteen
 
 December 15, 2016, 9:06 am
 

The highest-ever wave detected by a buoy has been recorded in the North Atlantic ocean, the World Meteorological Organisation has said.

The 19-metre (62.3ft) wave happened between Scotland and Iceland, off the Outer Hebrides.

Giant waves can be created in the north Atlantic, which stretches from the Grand Banks plateau off the coast of Canada to the area south of Iceland and west of the UK.

In winter, wind circulation and pressure systems cause extratropical storms, sometimes known as bombs, the WMO said.

The height of a wave is measured from the crest of one to the trough of the next.

Below: Compilation of the biggest waves ever surfed at Nazare Portugal. The waves at Praia do Norte, Nazaré, are famed for being among the largest in the world. Uploaded to Youtube by 

The Most Extreme.

Solving the wave energy puzzle

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Category: Metereología y Oceanografía
Published on Thursday, 25 February 2021 07:58
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Science Nordic
 
 
In September, Weptos was tested in waves up to one meter high in a large tank in Santander, Spain. According to the researchers, the unit performed “extraordinarily well”. (Photo. Weptos)

 

Tests of a new wave power plant have been “exceedingly promising”, say researchers.

Jonas Salomonsen
 
PUBLISHED Monday 05. december 2011 - 05:28

We already get energy from the sun and the wind, but nobody has successfully tamed the power of the sea – yet. 

Now Danish researchers are making a new attempt using a two-legged wave power plant called Weptos.

A prototype has been tested in a new wave tank in Spain – a test that the developers say was “exceedingly promising”. They believe Weptos can be the key to channelling energy from the sea

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ALTURA DE LA OLA SIGNIFICATIVA

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Category: Metereología y Oceanografía
Published on Tuesday, 02 February 2021 09:02
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Windsea: altura de ola significativa y dirección media:

En cualquier lugar sobre los océanos, un campo de olas se caracteriza completamente por su espectro de olas bidimensional que describe cuánta energía de las olas está presente para determinadas frecuencias y direcciones de propagación. La parte del espectro que está bajo la influencia directa del viento local se llama windsea (u olas de viento), la parte restante es swell. Esta representación completa generalmente se simplifica en un conjunto de parámetros integrados:

La altura significativa de las olas del mar del viento se define como 4 veces la raíz cuadrada de la frecuencia integral y la dirección del espectro de olas que se identifica como mar del viento.

La dirección media del mar del viento es la dirección de propagación promediada espectralmente de las olas (ponderada por la amplitud) de la parte del espectro que es el mar del viento.

 

 

 

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