Sentences with phrase «impact basins on»

«By comparing the measured craters to the number and spatial distribution of large impact basins on Mercury, we found that they started to accumulate at about the same time, suggesting that the resetting of Mercury's surface was global and likely due to volcanism,» said lead author Dr. Simone Marchi, who has a joint appointment between two of NASA's Lunar Science Institutes, one at the SwRI in Boulder and another at the Lunar and Planetary Institute in Houston.

For decades, scientists have debated the significance of these rings, which are found around the largest impact basins on the moon, Mars, and Earth.

Combining these new estimates with the fact that there are even larger impact basins on the Moon and other planets, Schultz concludes that protoplanet - sized asteroids may have been common in the early solar system.

At 2,500 kilometers across, the SPA is the largest impact basin on the Moon and perhaps the largest in the solar system.

... The SPA basin is the oldest, deepest observable impact basin on the moon and ranks among the largest recognized impact structures in the solar system,» (shown in the image).

The kind of asteroid needed to form the Martian dichotomy would fall in between that size and those of the rocks that formed other large craters, such as the South Pole — Aitken impact basin on the moon and the Hellas Basin in Mars's southern hemisphere, both more than 1,30 miles (2,000 kilometers) wide.

Not exact matches

The attorney general said he is giving federal officials a month to agree to the study that would focus on the impact of hydrofracking in the Delaware River basin, which includes the New York City watershed and portions of Broome, Chenango, Delaware, Schoharie, Green, Ulster, Orange and Sullivan counties.

The feature sits in the Rembrandt impact basin, the second - largest impact scar on the planet.

The work also suggests — based on the sizes of other impact basins in the Moon, Mars and Mercury — that the early solar system was likely well stocked with protoplanet - sized asteroids.

Based on his experience in the Rio Santa — where it was once assumed that 80 percent of water in the basin came from glacier melt — Mark said he expects to find that the impact of monsoon water is greatly underestimated in the Himalayas.

The study also throws cold water on a second objection to the impact hypothesis: Scientists have thought that rock melted by the powerful strike would have simply filled in the basin and erased any record of its effects.

In 2013, Chang «e-3, an unmanned lunar mission, touched down on the northern part of the Imbrium basin, one of the most prominent of the lava - filled impact basins visible from Earth.

But the buildup of heat from the decay of radioactive elements in the interior then remelted parts of the mantle, which began to erupt onto the surface some 500 million years after the Moon's formation, pooling in impact craters and basins to form the maria, most of which are on the side of the Moon facing the Earth.

Angel also argues in his paper that local dumping would cause «no impact on biodiversity... because the distribution of species are ocean basin in scale».

Mars, on the other hand, is thought to have been shaped mostly during the period of primordial accretion and the so - called Late Heavy Bombardment, when asteroids carved out massive impact basins and pushed up huge volcanoes.

Heat differences meant impacts left larger, shallower basins on the lunar surface that faces Earth

Large impact basins are also found on other planets, including Mars and Mercury.

Although Kargel's research focused on the icy moons of the outer solar system, his interest was piqued when he saw what he thought was a network of sinuous channels meandering through the Argyre impact basin, a region in the southern highlands of the red planet.

Decreased streamflow in semi-arid basins following drought - induced tree die - off: a counter-intuitive and indirect climate impact on hydrology.

Interestingly, the paper cited seems to be arguing that any large moon could have broken apart on its way in, providing the large near - side impacts attributed to the «Great Cataclysm» of impacts that formed the nearside basins nigh on 3.9 billion years or so ago.

Research by University of Maryland astronomy professor Douglas Hamilton and New Horizons colleagues, published in the journal Nature, shows that this nitrogen ice cap could have formed early on, when Pluto was still spinning quickly, and did not necessarily require an impact basin.

Two new studies on Pluto were published on Wednesday, revealing a controversy about what lies beneath an icy impact basin in the...

This mineral is rare in asteroids, but common on larger bodies (including Mars, which has it in impact basins).

To better understand the climate's impact on glaciers in the future, a team of researchers in Nepal, France and the Netherlands studied glaciers in the Dudh Kosi basin in the Himalayas, which is home to some of the world's highest mountain peaks, including Mount Everest.

In an article published in Science on May 11, 2012, scientists working with NASA's DAWN Mission revealed that Vesta's south polar basin was created by impacts roughly a billion years apart.

While the discovery is still noteworthy in terms of understanding Amazon basin geophysics, the Hamza's potential as a source of freshwater and its overall impact on surrounding ecosystems is likely to be much less significant than originally reported.

Our national advocacy touches every river and stream in the country, and our special focus on 11 priority river basins allows us to bring our unique expertise to bear to make a real and lasting impact.

In this data activity, students interpret raw data on snow cover and explore the climatic impact of the «lake effect» - a significant factor determining snowfall amount in the Great Lakes drainage basin is the surface temperature of the lakes... (View More) Step - by - step instructions for use of the MY NASA DATA Live Access Server (LAS) guide students through selecting a data set, importing the data into a spreadsheet, creating graphs, and analyzing data plots.

Impact of snow and glacier melt on the water security of users of the Ganges, India Ewout Zwolsman, an MSc student from Wageningen University, assessed for the HighNoon project the contribution of snow - and ice melt to the water demand in the Ganges basin as part of his final Masters thesis.

From an OSU press release: CORVALLIS, Ore. — An analysis of 35 headwater basins in the United States and Canada found that the impact of warmer air temperatures on streamflow rates was less than expected in many locations, suggesting that some ecosystems may be resilient to certain aspects of climate change.

This report presents findings from computer modeling of the impacts of potential climate change on hydrology and water availability (changes in runoff, basin yield, and flooding).

It is, as yet, unsettled how this region relates to the basin - wide warming that is the AMO and the associated impacts on Atlantic hurricanes, and temperature and precipitation patterns around the circum - North Atlantic.

Comparison of streamflow from two adjacent USGS monitored basins Thunder Creek and Newhalem Creek, the former with 14 % glacier cover the latter with 0 % glacier cover highlight the impact of glaciers on streamflow.

Even with warming of 2 °C, we can expect to see adverse effects on water availability in critical river basins, a more than doubling of forest fires in Amazonia by 2050, impacted coral reef recovery from bleaching events, among other effects.

The spatial resolution of current global climate models, roughly 200 km, is too coarse to simulate the impact of global change on most individual river basins.

The future of glaciers and associated runoff is projected for 56 large drainage basins globally, with glacier wastage impacting on runoff and water resources even in basins with limited glacier cover.

Though many modeling studies have demonstrated the impact of deep water formation changes on the overturning circulation, the observational evidence for such a linkage has been hard to come by for two reasons: (1) Deep water formation is difficult to quantify because the time and locale of production are highly variable from winter to winter, and (2) overturning circulation measures require observations that span the basin, which have been limited in space and time.

This review seeks to objectively assess the available evidence of the impacts of climate change on glacier hydrology and the wider implications upon water resources within the Indus, Ganges, and Brahmaputra basins.

Higher elevation areas could experience altered water flow in some river basins if current rates of glacial retreat continue, but shifts in the location, intensity, and variability of rain and snow due to climate change will likely have a greater impact on regional water supplies.

Our 2015 study examines the impact of 21st - century projected climate changes (CMIP5, RCP4.5 scenario) on a number of tropical cyclone metrics, using the GFDL hurricane model to downscale storms in all basins from one of the lower resolution global atmospheric models mentioned above.

US CLIVAR is engaging with the SEARCH Program to define common research topics, including changes in climate, sea ice extent, ice sheet mass in the Arctic basin, and climate impacts on ocean circulation and regional sea level.

In the 2050s, differences in the population projections of the four SRES scenarios would have a greater impact on the number of people living in water - stressed river basins (defined as basins with per capita water resources of less than 1,000 m3 / year) than the differences in the emissions scenarios (Arnell, 2004b).

A well - chosen decorative basin, or a bowl made from an unusual material can have a big impact on the space.