Their action can be taken as an unproductive yet poetic form
of wind erosion, directed toward this uniquely uncorrupted material from a time when there were no life witnesses to the planet's geological transformation.
Their findings show that adding camelina or safflower into the crop rotation increased the chances
of wind erosion late in the fallow cycle.
Another possibility is that the area was fractured by the impact that created Endeavour Crater, then rock dikes filled the fractures, and we're seeing effects
of wind erosion on those filled fractures.»
Not exact matches
In this study, the effects
of sea level rise (assumed to continue at present, at the time
of the study, rates, which the authors noted was likely conservative), wave fetch,
wind speed and direction were examined and the resultant
erosion rate was estimated for the Western and Eastern shore
of Uppands, Port Isobel and Tangier Island by selecting 10 points along the western and eastern shoreline
of all the islands.
Perhaps
of all materials that have been used, hard stone is the most enduring, though even this is subject to destructive
erosion if exposed to
wind and weather.
The causes are manifold including overuse
of chemical fertilizers that tend to destroy soil structure, salting from irrigation and
wind erosion.
This is done by adding compost on pasture to increase soil health, planting
wind breaks and hedge rows to reduce soil
erosion, planned rotational grazing
of animals to best manage pasture health, and planting perennial grasses to increase underground root systems.
The introduction
of trees to form agroforestry systems provided sources
of firewood, timber, fruits and shade, but also helped in
erosion control, protecting water courses through the stabilization
of the soil and as
wind breaks, regulating the velocity
of the
winds.
This
erosion experiment from Inspiration Laboratories looks at different types
of erosion:
wind, water, and glacial.
Unlike natural bridges on Earth, which form largely by
erosion from
wind and water, these lunar bridges probably formed as a result
of an impact in the last billion years, says Mark Robinson, a planetary geologist at Arizona State University in Tempe and principal investigator for LRO's camera.
Also at the meeting, Francis McCubbins, a colleague
of Agee's at the University
of New Mexico, presented evidence that the rounded appearance
of the large faint pebbles suggests
erosion by water or
wind.
Compressional forces, on the other hand — forces that are delivered vertically, such as the impacts
of hooves, tires, and feet — can break up the soil and make it vulnerable to
wind erosion.
«But the stellar
wind can significantly contribute to the long - term
erosion and atmospheric loss
of many exoplanets, so the climate models tell only part
of the story.»
Balancing boulders on Earth are either deposited by glaciers or carved by
wind and water
erosion — none
of which exist on a comet.
Soil
erosion by water accounts for the greatest loss
of soil in Europe compared to other
erosion processes, such as
wind.
Erosion has also increased during winter; shrinking lake ice — a product
of climate change — does not protect the dune from winter
winds as it has in the past.
«Farmers will need to protect the soil from
wind erosion during the fallow phase after harvest
of oilseed crops,» says Sharratt.
«You can take the geography
of a salt marsh and the estuary around it, and if you understand the
wind climate and the wave climate, using historical data, you now can predict the marsh
erosion,» says Ganju.
At Oxia Planum, the clays were covered by other material for billions
of years and then recently uncovered by
wind erosion.
Built up over the ages by
wind - blown sands from the nearby Gobi Desert and Qaidam Basin, the plateau has long boasted some
of the world's most
erosion - prone soils.
Okin, a member
of UCLA's Institute
of the Environment and Sustainability, usually researches dust bowls, desert landscape dynamics and
wind erosion, and how those things can impact individual ecosystems and the global climate.
Forces
of erosion, including
wind, rain and runoff, slowly wear them down over time.
These columns
of windswept sand — which can cause roadway pileups, eat away at buildings and machinery, and drive larger processes such as
erosion and dune formation — consisting
of many millions
of interacting particles propelled by ever - changing
winds.
Coastal
erosion is common phrase referring to the loss
of subaerial landmass into a sea or lake due to natural processes such as waves,
winds and tides, or even due to human interference.
«Some
of the observed features included ancient river beds, craters, massive extinct volcanoes, canyons, layered polar deposits, evidence
of wind - driven deposition and
erosion of sediments, weather fronts, ice clouds, localized dust storms, morning fogs and more,» NASA wrote in a summary
of the mission.
The soft red sandstone Supai group is easily sculpted by
wind and rain
erosion; harder sections
of the Coconino formation on top
of the red sandstone can protect somewhat the underlying the softer rocks, leading to the characteristic columns and spires typical to Sedona.
The dark streaks with bright margins emanating from craters in the Oxie Palus region, upper left
of image, are caused by
erosion and / or deposition by the
wind.
«If the structure is indeed the result
of the 2004 impact, we would expect it to have undergone about 10 years
of alteration by processes such as snow accumulation,
erosion by the
wind, and deformation by the flow
of the ice shelf itself.»
On a much larger scale, waves, currents,
wind, and tides form complex interactions over time to cause
erosion along some stretches
of shoreline and accretion (growth) in others.
Causes
of erosion include
wind, water (including rainfall and floods), the scouring action
of glaciers, and the repeated cycles
of freezing and thawing that often occur in some areas
of the world.
Without a magnetic field generated by a rotating molten metallic core, the atmosphere
of such a planet would also face progressive
erosion by the stellar
wind of its host star.
This can cause serious damage to fins,
erosion of skin, constant bleeding, and open
wounds at risk
of infection.
Picture fifth graders gathered around a table where teachers are modeling the effects
of sand
erosion by
wind and water.
With the episodic cycles
of droughts, overgrazing and soil - stripping this island has experienced, along with
wind and water
erosion, the island's vegetation has been severely affected in the past.
An hour later, we make our last stop for seeing the stunning «Castillos de Callalli», which is a sort
of castle - shaped rocky formation made by water and
wind erosion.
The
wind and the
erosion gave them their current funny shapes that created a very one
of a kind landscape.
Princen has also been known to reference scientific measuring systems, mapping, and amateur anthropology in his work, and his artistic practice has involved plotting ecological changes — water currents,
wind patterns, and soil
erosion, as well as the impacts
of urban developments on the Dutch landscape.
The paintings were not literal renderings
of the mountainous and rugged terrain, but instead captured the spartan forms and sculpted surfaces like those shaped by centuries
of erosion and movement
of wind and water as well as upheavals from tectonic shifts deep within the earth.
During a stop near Sydney, Australia, mainly framed around urging young people to join the Church, Pope Benedict XVI on Friday also spent time describing nature's wonders and
wounds — «scars which mark the surface
of our earth,
erosion, deforestation, the squandering
of the world's mineral and ocean resources in order to fuel an insatiable consumption.»
- the later directly by putting dust in the ocean (or
erosion and river /
wind transport there) or indirectly by taking up CO2 on land) but at least the carbonate dissolution could take the place
of carbonate dissolution in the ocean (and be more rapid?)
From a story on «how a donkey inspired a community to save itself» to a family divided on
wind power to concerns about coastal
erosion through the eyes
of a Texas town, the radio series captures the struggles
of every - day Americans as they come to terms with change in their communities.
Since coming to PNNL, he has led or been significantly involved in studies
of effects
of surface heterogeneity on boundary layer structure,
of mesoscale atmospheric flows induced or modulated by complex terrain,
of the simulation
of dust emission by
wind erosion, and
of the capabilities
of a variety
of atmospheric instruments — including a mass spectrometer and
wind profiling radar — for measuring atmospheric turbulence.
In these events, cold - air usually penned in the Arctic by
winds known as the polar vortex, broke out and reached the U.S. and Europe due to an
erosion of the vortex, an
erosion that may have been driven by an abnormally warm Arctic.6
Erosion - The process
of removal and transport
of soil and rock by weathering, mass wasting, and the action
of streams, glaciers, waves,
winds and underground water.
tonyb, Black carbon, regular ash and
wind erosion along with other hydro - logical changes from decimating beavers to draining wet lands to fight malaria likely have and will continue to have large impacts on climate, but who is to say that most
of that hasn't been a good thing in terms
of mankind?
From Australia to the Sahara & Sahel to the deserts
of the Middle East & northwest India to the American West, human activity has destroyed fertile grasslands, and exposed the underlying soil to
erosion by
winds and rivers.
Many local impacts
of forest loss are well known: drier soils, stronger
winds, increased
erosion, loss
of shade and habitat.
Soil management to increase soil carbon sequestration may also reduce the amount
of wind and water
erosion due to an increase in surface cover.
These areas may experience tropical storm conditions with
wind gusts to 30 - 60 mph, 1 - 3 inches
of rain, and beach
erosion.
Black carbon deposits, deforestation (increasing
wind - based
erosion), lack
of precipitation, etc..