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Why Is There a Desert in Somalia? Odd Geography

10:41

Why East Coasts Lack Deserts (Usually)

9:21

Why the Hottest Time of Year Varies Widely Across the USA

9:07

The Geography of Mountain Civilizations

12:19

Why Summers in San Francisco Are So Cold and Foggy

7:34

How Far North Will Florida's Pythons Spread? | Invasive Biogeography

14:08

The Most Storm-Struck Island on Earth?

Tropical cyclones, including hurricanes and typhoons, may be the most frightening force the ocean and atmosphere can produce. Some parts of the world are uniquely vulnerable to these devastating weather events.
Image & Video Sources:
Dan Davis (Casual Earth creator)
Zlatin Georgiev (sea lions & kelp video) pexels Creative Commons
Alberto Alcala (Socorro Tree Lizard photograph) wikipedia Creative Commons
Ignacio March Mifsut (Socorro Parakeet photograph) wikipedia Creative Commons
Google Earth
earth.nullschool.net
Columbia Climate School, International Research Institute for Climate & Society
NASA Jet Propulsion Laboratory
Information Sources:
Encyclopedia of World Climatology (2005), John Oliver. Indiana State University. Pg. 128, 549, 562, 732, 744, 750-755.
Climatology, Variability, and Return Periods of Tropical Cyclone Strikes in the Northeastern and Central Pacific Basins. Nicholas S. Grondin, 2019. Louisiana State University.
Jung, Gerlinde; Prange, Matthias (2020). The effect of mountain uplift on eastern boundary currents and upwelling systems. Climate of the Past, 16(1), 161-181. doi:10.5194/cp-16-161-2020
Avila, Lixian (October 30, 2019). "Tropical Cyclone Report: Hurricane Lorena" (PDF). National Hurricane Center (Report). Miami, Florida.
Todd B. Kimberlain; Eric S. Blake; John P. Cangialosi (February 1, 2016). Hurricane Patricia (PDF) (Report). Tropical Cyclone Report. Miami, Florida: National Hurricane Center. Retrieved February 4, 2016.
"World Tropical Cyclone Records". World Meteorological Organization. Arizona State University. Retrieved December 12, 2013.
Brettschneider, B. 2008: Climatological Hurricane Landfall Probability for the United States. J. Appl. Meteor. Climatol., 47, 704-716. doi: dx.doi.org/10.1175/2007JAMC1711.1
Gray, W. M., 1984. Atlantic seasonal hurricane frequency. Part I: El Niño and 30 mb quasi-biennial oscillation influences. Mon. Weath. Rev., 112, 1649-1668.
Knapp, K. R., M. C. Kruk, D. H. Levinson, H. J. Diamond, and C. J. Neumann (2010), The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data, Bull. Am. Meteorol. Soc., 91, 363-376, doi:10.1175/2009BAMS2755.1
Wolter K, Timlin MS. 1993. Monitoring ENSO in COADS with a seasonally adjusted principal component index. Proceedings of the 17th Climate Diagnostics Workshop, Norman, OK,NOAA/NMC/CAC, NSSL, Oklahoma Climate Survey, CIMMS and the School of Meteorology, University of Oklahoma: Norman, OK;52-57.
Woodruff, J. D., J. L. Irish, and S. J. Camargo. (2013), Coastal flooding by tropical cyclones and sea-level rise. Nature 504, 44-52 doi:10.1038/nature12855
Brian Brettschneider. (2015, November 8). Tropical Cyclone Ace Climatology. Tropical Cyclone ACE Climatology. us-climate.blogspot.com/2015/11/tropical-cyclone-ace-climatology.html
"Socorro, Revillagigedo Islands". Britannica. Retrieved 2020-10-08.
Brattstrom, Bayard H. & Howell, Thomas R. (1956). "The Birds of the Revilla Gigedo Islands, Mexico" (PDF). Condor. 58 (2): 107-120. doi:10.2307/1364977.
Perger, Robert (April 2019). "A New Species of Johngarthia from Clipperton and Socorro Islands in the Eastern Pacific Ocean (Crustacea: Decapoda: Gecarcinidae)". Pacific Science. 73 (2): 285-304. doi:10.2984/73.2.9
Collar, N., G. M. Kirwan, C. J. Sharpe, and P. F. D. Boesman (2020). Socorro Parakeet (Psittacara brevipes), version 1.0. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. doi.org/10.2173/bow.grnpar2.01 retrieved April 5, 2023

zhlédnutí: 5 589

Video

Why Is There a Desert in Somalia? Odd Geography

10:41

Why Is There a Desert in Somalia? Odd Geography

zhlédnutí 597KPřed 7 měsíci

Why is there a desert in Somalia and Kenya, extending to the equator? For that matter, why is East Africa home to savannas and woodlands, rather than the rainforest we often find at such equatorial latitudes? And shouldn't subtropical West Asia be more humid, considering the fact that subtropical deserts are usually absent from eastern coastlines? The expansive deserts and savannas of Eastern A...

9:21

Why East Coasts Lack Deserts (Usually)

zhlédnutí 503KPřed 10 měsíci

Rather than seeing consistent “band of deserts” in the subtropics on our planet, we actually see a major asymmetry: subtropical deserts are almost always absent from eastern coastlines. This is true in North America, South America, Australia, Southern Africa, and Australia. In general, rainfall is much greater on the eastern side of a landmass at subtropical latitudes. Why do we see this patter...

Why the Hottest Time of Year Varies Widely Across the USA

9:07

Why the Hottest Time of Year Varies Widely Across the USA

zhlédnutí 74KPřed rokem

When is the hottest time of year, in the United States? Although the entire country sits within the Northern Hemisphere and thus experiences the same summer solstice, the hottest time of year doesn’t arrive all at once across the country. In this video we explore three different sections of the contiguous United States, where the hottest time of year comes as early as June and as late as Septem...

12:19

The Geography of Mountain Civilizations

zhlédnutí 97KPřed rokem

Human development tends to cluster on low plains and gently rolling hills, weaving around mountains and high elevations. But in many parts of our world, this pattern is reversed. There are many places where dense human populations, cities, and roads cluster along mountains and high plateaus. Where are these mountain civilizations, and why do they exist? Video sources: Daniel Davis (creator) Ima...

Why Summers in San Francisco Are So Cold and Foggy

7:34

Why Summers in San Francisco Are So Cold and Foggy

zhlédnutí 97KPřed 2 lety

Through June, July, and August, San Francisco has cooler temperatures than any other major U.S. city. And just inland, summer daily high temperatures in the 90s F (above 32°C) are the norm. What factors create such bizarre weather in San Francisco? Video sources: Daniel Davis (self) Image sources: earth.nullschool.net Google Earth NASA Earth Observatory NASA Goddard Space Flight Center Wikipedi...

How Far North Will Florida's Pythons Spread? | Invasive Biogeography

14:08

How Far North Will Florida's Pythons Spread? | Invasive Biogeography

zhlédnutí 2,3MPřed 2 lety

Florida has a serious problem with invasive species, including Burmese pythons. Will those pythons become a problem for other states too? How far north will Florida’s pythons spread? Information sources are listed on this reference sheet: imgur.com/a/TqXGHJC (too long to fit in description). Film Sources: Florida Fish & Wildlife Conservation Commission. Daniel Davis (self). Image sources: Googl...

Earth's Rainiest Rainforest: The Chocó Rainforest

8:39

Earth's Rainiest Rainforest: The Chocó Rainforest

zhlédnutí 222KPřed 2 lety

The Chocó Rainforest, or Chocó-Darien Moist Forest, is a contender for the title of rainiest place on Earth, and it’s likely the rainiest rainforest on our planet. This region runs roughly from the Darien gap in Panama, through the Pacific coast of Colombia, to northwest Ecuador. It’s distinct from the Amazon, and has an even wetter climate. In this video we’ll explore why this tropical rainfor...

3:12

The Silver Lining of Giant Wasps

zhlédnutí 12KPřed 2 lety

Honeybees and bumblebees have gained a soft spot among people who normally hate insects. Wasps, on the other hand, seem to be almost universally despised. But are all wasps the same? Do some provide numerous benefits for our society and ecosystems? Video Footage: Dan Davis (Casual Earth creator) Image Sources: Wikipedia commons (Paul Asman, Jill Lenoble, Katja Schulz, Melissa McMasters, Judy Ga...

Why Aren't There Snow Monkeys in North America or Europe?

9:40

Why Aren't There Snow Monkeys in North America or Europe?

zhlédnutí 187KPřed 2 lety

It’s clear that there are many primates adapted to climates with cold winters. Many different monkey species can handle snow and freezing temperates. Why, then, don’t we see more of them in the Northern Hemisphere? Why don’t we see monkeys in the temperate forests of North America, or Europe? Image sources: earth.nullschool.net Google Earth Becker, D., Verheul, J., Zickel, M., Willmes, C. (2015...

6:10

The Four Reasons East Coasts Get Colder

zhlédnutí 172KPřed 2 lety

Eastern North America and East Asia experience winters far colder than Europe or Western North America at the same latitude. Why is this? Is it due to the Gulf Stream/Kuroshio Current? Or the Rocky Mountains? Are there other factors at play? Image sources: Earth observatory.nasa.gov earth.nullschool.net Google Earth Wikipedia Commons (sacratomato_hr, Chicoutimi, Karamanskaya, Jules Verne Times ...

Bizarre Climates | Japan's Snow Coast Explained

5:36

Bizarre Climates | Japan's Snow Coast Explained

zhlédnutí 48KPřed 2 lety

On Japan's west coast, facing the Sea of Japan, you will find a climate unlike any other-hot, humid summers followed by some of the snowiest winters at this latitude. The mountains just behind the coastline (Yukiguni, or snow country) have some of the highest snowfall totals on earth. What creates this extraordinary snowfall? And how does it affect people, their history, and their environment? ...

Why Lake Victoria Kills So Many People, and Why Lake Maracaibo Has So Much Lightning

5:19

Why Lake Victoria Kills So Many People, and Why Lake Maracaibo Has So Much Lightning

zhlédnutí 172KPřed 2 lety

Lake Maracaibo is famous for Catatumbo lightning, the intense lightning shows that appear nearly every night. Lake Victoria, on the other hand, is infamous for drowning unfortunate fishermen. There is one phenomenon behind this-one bizarre trick of the atmosphere that is played directly over tropical lakes, and in deep tropical valleys. Image Sources: Wikipedia Commons (Theo Matandura, Fernando...

The Geography of Medieval Greenland | Vikings at the Edge of the Ice

14:08

The Geography of Medieval Greenland | Vikings at the Edge of the Ice

zhlédnutí 194KPřed 2 lety

Most of us hear the story of how the Vikings, or Norse, sailed across the stormy Atlantic and settled Iceland. Many times we hear about the Vikings in Vinland. But too often, history discussions skip over the Norse in Greenland. These communities were long-lived outposts at the edge of an ice sheet 12,000 feet tall-they were not, however, alone. Today we dive briefly into the story of how the N...

9:05

Why Do Conifers Rule the North?

zhlédnutí 349KPřed 2 lety

This time of year, many people are bringing conifers into their homes to decorate. For many of us, they symbolize the winter season. But it’s easy to take these trees for granted-where do these pine, spruce, fir, and their relatives come from? Why do they dominate the frozen fringes of the far north in Siberia and Canada, as well as high mountains? How do they endure a winter colder than any ot...