New Map Shows Seabed of Southern Ocean in Unprecedented Detail

 

June 10, 2022

The features of the ocean floor help to determine how water masses and ocean currents move and how they affect our climate. Biodiversity is also influenced by seafloor landforms. Accordingly, the most precise information possible on seafloor topography is indispensable for oceanographic and climate research. With the second version of the International Bathymetric Chart of the Southern Ocean (IBCSO v2), an international group of researchers led by the Alfred Wegener Institute recently presented the best and most detailed seafloor map of the Southern Ocean to date. The map and the complex methods used to create it have been published in the Nature journal Scientific Data.

Pivotal Role

Encircling the Antarctic continent, the Southern Ocean plays a pivotal role in the Earth system and

Seguir leyendo

Informacion meteorológica

https://www.weather.gov/marine/marsh#wind

 

ACTIVE ALERTS
Warnings By State
Excessive Rainfall and Winter Weather Forecasts
River Flooding
Latest Warnings
Thunderstorm/Tornado Outlook
Hurricanes
Fire Weather Outlooks
UV Alerts
Drought
Space Weather
NOAA Weather Radio
NWS CAP Feeds

PAST WEATHER
Climate Monitoring
Past Weather
Monthly Temps
Records
Astronomical Data
Certified Weather Data

las corrientes en Terranova

https://www.researchgate.net/figure/a-Map-showing

-the-major-surface-subsurface-currents-in-

the-North-Atlantic-Ocean-Blue_fig1_282901258

Guía de meteorología.CANADA

https://publications.gc.ca/collections/

collection_2017/eccc/En56-240-2013-eng.pdf

 

Table of Contents Acknowledgements ..................................................................................................................II Foreword..................................................................................................................................III SECTION I: METEOROLOGY 101...........................................................................................1 Chapter 1: Marine Meteorology Primer................................................................................1 1. Convention for Units of Measurement ..........................................................................1 2. Weather Maps................................................................................................................2 3. Forecasting .....................................................................................................................5 3.1 Marine Weather Services ......................................................................................5 3.2 Forecast Tailoring..................................................................................................7 3.3 Other Considerations ..........................................................................................10 4. Marine Safety ...............................................................................................................15 5. Marine Meteorology.....................................................................................................16 Chapter 2: Wind...................................................................................................................... 25 1. Introduction.................................................................................................................25 2. How Wind is Formed ...................................................................................................25 3. Effects of Atmospheric Stability on Wind....................................................................27 3.1 Stable Atmosphere..............................................................................................27 3.2 Unstable Atmosphere..........................................................................................28 4. Nearshore Effects on Wind ..........................................................................................29 4.1 Solar Heating .......................................................................................................29 4.2 Topography ............................................................................................................. 33 4.3 Combined Effects ................................................................................................39 Chapter 3: Sea State................................................................................................................ 45 1. Introduction.................................................................................................................45 2. The Anatomy of a Wave...............................................................................................46 2.1 How Waves Form................................................................................................46 2.2 Wave Characteristics...........................................................................................47 2.3 Understanding Wave Forecasts..........................................................................48 3. Other Influences on Waves..........................................................................................50

Seguir leyendo

Calculating the tides: The Rule of Twelfths

 

 

 

Words by Will Forster & images by Jason Corroto, Magic Seaweed, NASA


   

Lets begin this piece by asking a question; how often do you consider the tides before going for a surf? Playa Guiones, where the Surf Simply resort is based is lucky to work all the way through from high to low. Where the tide is at any given time though may influence certain decisions before we paddle out; like for example where to surf, or which surfboard to ride. Typically at high tide there would be a slow, fatter wave breaking, and a fast more hollow wave breaking at low tide, with those characteristics transitioning through mid tide. This becomes even more critical when we travel up or down the coast

Seguir leyendo