EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Waterfall in the Desert

January 19, 2022

EPOD.WatefallCampCreekFec017#6a copy

Photographer: Thomas McGuire

Summary Author: Thomas McGuire

The Sonoran Desert near Phoenix, Arizona has many natural
waterfalls, but nearly all of them only run for a few hours after
major rain events. Shown in the picture above, Camp Creek waterfall,
located about 10 miles (16 km) east of Cave Creek, is a rare
exception. While this image shows winter flow, it is only in the past
couple of years that the waterfall has run completely dry by the end of
the summer. This alone does not prove global warming. But it adds to
the countless observations of others as unfortunate and compelling
evidence of local climate change.

The geologic conditions that cause this anomaly in the desert are
springs upstream where a perched water table on ancient
basaltic lava layers comes to the surface. Except in usually heavy
or monsoon floods, the water usually seeps into a deeper
alluvial aquifer around 300 feet (91 m) or so downstream.
* Cave Creek, Arizona Coordinates: 33.8759078, -111.8030053

Related EPODs

Waterfall in the Desert Knik Arm Tides of Alaska The Law of
the (Colorado) River Utah’s Great Salt Lake Archive - Orange
Mound Spring Soap Lake, Washington
More...

Hydrology Links

* Current Sea Surface Temperature
* NOAA Ocean Explorer Gallery
* Ocean Color
* What is hydrology?
* Tides and Currents
* Water Resources of the United States
* World Waterfall Database
* The USGS Water Science School
* World Water Database
* The World’s Water
* USGS Surface Water Information Pages

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu
--- up 6 weeks, 3 days, 20 hours, 43 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)

EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Strawberry Moon and Etna Exhaust

September 19, 2022

Ormefoto - etna superluna

Photographer: Orazio Mezzio
Summary Author: Orazio Mezzio

The photo above shows the rising Strawberry Supermoon peeking above
the south-east crater of Mt. Etna as observed on June 14, 2022,
from near Maletto (Sicily), Italy. The plume from Etna’s late
May 2022 eruption still lingers but is beginning to fade. It’s the
glow from the full moon that’s highlighting the sinuous volcanic
exhaust. Enhancing this evocative view is a thermal inversion that
acts to keep the plume from dispersing toward the surface or higher
into the sky.

Maletto is known locally as the town of strawberries. Because of
the rich volcanic soil found here, it seems that the strawberries have
acquired a unique, sweet flavor.

Photo details: Nikon D750 camera; Nikkor 50 mm lens; Landscape mode;
f/2; 3.6 second exposure; ISO 100 –- Moon shot at f/3.2, 1/50 second
exposure, ISO 100.

Maletto (Sicily), Italy Coordinates: 37.8318, 14.8662


Related EPODs

Strawberry Moon and Etna Exhaust Kodachrome Basin State Park,
Utah Idaho’s Gravity-Defying Balanced Rock Eastern Flank of Mt.
Etna Carachipampa Volcano, Argentina The Marmolada and the
Partial Lunar Eclipse of May 16, 2022
More...

Geography Links

* Atlapedia Online
* CountryReports
* GPS Visualizer
* Holt Rinehart Winston World Atlas
* Mapping Our World
* Perry-Castañeda Library Map Collection
* Types of Land
* World Mapper

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu

--- up 29 weeks, 21 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)

EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Summer Storm on the Mediterranean

October 19, 2022


20220822 Fulmini Comp web

Photographer: Alessia Scarso
Summary Author: Alessia Scarso
The photo above is a composition of 47 shots taken from my balcony in
Maganuco (Modica), Italy during a late summer thunderstorm on the
Mediterranean Sea. Both the cloud-to-ground lightning and the
cloud-to-cloud lightning was memorable with this storm. Note that
the horizontal lines are the lights of a ship that passed close to the
horizon. Click here to see an animation. Photo taken on August 22,
2022.

Photo details: Sony A7RIII camera; Tamron 70-180 lens; 180 mm; f2.8;
ISO 800; 5 seconds exposure time.

Maganuco (Modica), Italy Coordinates: 36.71762, 14.81083


Related EPODs

Summer Storm on the Mediterranean Lightning and the Eiffel
Tower Rainshaft Spotted in New York Waterspout Over Lake Los
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Sprite Over Mediterranean Sea
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Severe Weather Links

* World Severe Weather Information Center
* Enhanced Fujita Scale
* A Lightning Primer
* More About Thunderstorms
* Staying Safe Outdoors in Severe Weather
* NOAA Storm Prediction Center
* Patterns of Lightning Activity
* US National Weather Service

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu

--- up 33 weeks, 2 days, 20 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)