Bigger Storm Waves of Climate Change Bust Up and Melt Sea Ice
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- Category: Metereología y Oceanografía
- Published on Wednesday, 11 June 2014 04:05
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Bigger ocean waves might be more common nowadays as climate change alters wind patterns
The sun sets over a field of broken sea ice. Credit: Rob Johnson
Big ocean waves whipped up by storms hundreds or even thousands of miles away from Earth’s poles could play a bigger role in breaking up polar sea ice and thus contributing to its melt more than had been thought, a new study suggests.
The study, detailed in the May 29 issue of the journal Nature, found that these waves penetrate further into the fields of sea ice around Antarcticathan current models would suggest, breaking up the ice well away from the edge of the ice. And previous studies have suggested that bigger
Vientos alisios y las cascadas de nubes
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- Category: Metereología y Oceanografía
- Published on Wednesday, 11 June 2014 03:48
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Son vientos cargados de humedad por la evaporación del mar, que soplan de forma casi constante en el verano y se chocan con las laderas situadas al NE de las islas, o sea, a barlovento. Estas masas de aire que colisionan contra las laderas de las islas se componen de dos capas. Una húmeda, pesada y más bien fría y cargada de nubes que se mantiene en las cotas bajas y pegada al relieve (vientos alisios inferiores o capa baja, entre los 500 m. y los 1500 m. de altitud), otra cálida, más ligera y seca y libre de nubes, localizada en las cotas altas (vientos alisios superiores o capa alta, a más de 1500 m. de
South African Wave Energy Resource Data
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- Category: Metereología y Oceanografía
- Published on Tuesday, 20 May 2014 15:43
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South African Wave Energy Resource Data
A Case Study
May 2013
Dr. J. R. Joubert
Prof. J.L. van Niekerk
Summary
An assessment of the South African wave energy resource was conducted through the analysis of measured and modelled wave data. Wave data recorded at wave measuring stations, representative of the various coastal zones of South Africa, was evaluated and it was found that the southwest coast has the highest wave power resource with a median value of wave power of approximately 26 kW/m. A detailed assessment of the spatial distribution of wave power off the southwest coast was conducted and it was found that the average deep-sea resource ranges from 33 kW/m to 41 kW/m. Results of a detailed assessment of the wave
Ice class criteria
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- Category: Metereología y Oceanografía
- Published on Saturday, 31 May 2014 20:36
- Hits: 2523
http://www.arctic-lio.com/nsr_iceclasscriteria
Ice Class Criteria
NOAA-led study: Tropical cyclone 'maximum intensity' is shifting toward poles
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- Category: Metereología y Oceanografía
- Published on Thursday, 15 May 2014 06:09
- Hits: 2382
Researchers find that the average latitude where tropical cyclones achieve maximum intensity has been shifting poleward since 1980
May 14, 2014
Typhoon Francisco and Super Typhoon Lekima on October 23, 2013 as they tracked northwestward toward China and Japan. (Credit: Tim Olander and Rick Kohrs, SSEC/CIMSS/UW-Madison, based on Japan Meteorological Agency data.)
Over the past 30 years, the location where tropical cyclones reach maximum intensity has been shifting toward the poles in both the northern and southern hemispheres at a rate of about 35 miles, or one-half a degree of latitude, per decade according to a new study, The Poleward Migration of the Location of Tropical Cyclone Maximum Intensity, published tomorrow in Nature.
As tropical cyclones move into higher latitudes, some regions closer to the equator