Sentences with phrase «square kilometers by»

Excluding the outlier of 1.0 million square kilometers by one of the public contributors gives a range of 4.0 to 5.7 million square kilometers, with a mean of 4.8 + / - 0.62 million square kilometers.

The researchers found that the ozone hole has declined compared to its peak size in 2000, shrinking by more than 4 million square kilometers by 2015.

Not exact matches

Shanghai is expected to build an intelligent - vehicle network covering about 62 miles (100 square kilometers) by 2020, the government said, adding that Shanghai will explore the possibility of connecting to major transportation junctions within the city.

Backed by U.S. air support, they've swept west from their bases in Iraqi Kurdistan and captured a huge swath of northeast Syria, estimated by one official at about 17,000 square kilometers.

In summary, we would point out that from 1960 to 1980 beef production in Central America increased 160 percent; of the 400,000 square kilometers of rain forest that existed in 1960 in Central America less than one - half remained by 1980 (Myers 1981).

About the tenth century, when the ancient Scandinavians, the Vikings, were frequenting North America, the humid portion of the east, as far as the mid-east of what is now the United States of North America, was covered by a dense forest of 1.6 million square kilometers.

By 2017, excessive nitrogen from agriculture had created a hypoxic zone in the Gulf extending 22,729 square kilometers (8775.7 square miles)-- an area larger than the state of New Jersey.

Their analysis, recently published in Geology, reveals a subglacial lake covering as much as 1,250 square kilometers (making it the second - largest subglacial lake in Antarctica by length after Lake Vostok) and a series of canyons that extend a kilometer deep and 1,100 kilometers across.

The later arrival indicated by Planck is good news for observers hoping to see the light from the first stars with next - generation instruments that will soon come online, like the James Webb Space Telescope and the Square Kilometer Array.

However, in order to come close to achieving a reduced target hypoxic zone of 5,000 square kilometers (1930.5 square miles) by 2050, nitrogen levels would have to be brought to zero — a scenario that the researchers note in their paper is «not only considered unrealistic, but also inherently unsustainable.»

Using satellites, ground - based instruments, and ozone - measuring weather balloons, they showed that since 2000, the September hole shrunk by 4 million square kilometers — an area bigger than India.

In 2004, they began monitoring Europe's largest ice field by area: Austfonna ice cap, a monster that is 560 meters thick in spots and straddles 8500 square kilometers, roughly the area of Puerto Rico.

The island was surrounded by a plain of glacial ice covering 1,500 square kilometers — 25 times the area of Manhattan.

According to a 2013 analysis conducted by Packer, it is cheaper to manage lions in fenced reserves at around $ 500 per square kilometer (not counting the high cost of installing the fence in the first place) than in unfenced areas, where $ 2,000 is only sufficient for managing a population at half its potential density.

Now that the close to 2,240 square - mile (5,800 square kilometers) chunk of ice has broken away, the Larsen C shelf area has shrunk by approximately 10 percent.

Low - oxygen zones where large ocean species can not live have increased by close to 5.2 million square kilometers since the 1960s, the team found.

The Larsen Inlet ice shelf, a 350 - square - kilometer slab north of Larsen A, was present in a satellite photograph taken in 1986, but by the time another image was made in 1988, most of it was missing.

Foresters strongly favored planting more commercially valuable coniferous trees — such as Scots pines, Norway spruce and beech — resulting in the reforestation of 633,000 square kilometers of conifers at the expense of broadleaved forests, which decreased by 436,000 square kilometers since 1850.

In 2002 35 percent of the total area cleared of trees consisted of land swaths smaller than 0.5 square kilometer, whereas by 2010, the contribution of these small areas to the overall deforestation number increased to 80 percent.

But using an old seafloor map of Havre and satellite data, Carey and her colleagues calculated that more than 75 percent of the material produced by Havre ended up in the 400 - square - kilometer pumice raft.

The 2010 figure — 6,498 square kilometers — raised hopes that Brazil would fulfill the pledge in its 2009 National Law on Climate Change to reduce Amazon rainforest destruction 80 percent by 2020.

As detailed by Evan Keane of the international Square Kilometer Array Organization and colleagues, this separate study suggested some fraction of FRBs occur billions rather than millions of light - years away.

Suburbs, slums and city centers may grow by more than a million square kilometers — much of it now home to wildlife

And between 1995 and 2006 an average of 19,497 square kilometers of forest was cleared in the Amazon annually, or an area equal to that covered by roughly 3.5 million American football fields.

Over-farming and drought led to 400,000 square kilometers of prime top soil blowing away in the wind in the 1930s, exacerbating, and exacerbated by, the Great Depression.

By 2050, the nation could lose over 155,480 square kilometers of forest — an area bigger than the state of Georgia.

Eight thousand square kilometers of Ethiopia are dominated by millions of Acacia fumosa trees, which scientists had never before identified.

The construction of a cat -, rabbit - and fox - proof fence has provided critical protection to these marsupials, and plans to fence in the entire 60 square kilometers should be completed by the end of the year.

The team found that the September ozone hole has shrunk by more than 4 million square kilometers — about half the area of the contiguous United States — since 2000, when ozone depletion was at its peak.

«First signs of healing in the Antarctic ozone layer: September ozone hole has shrunk by 4 million square kilometers since 2000.»

By contrast, a substantial area of some 75 square kilometers of wetlands are lost to erosion and drainage every year.

In order to do so a team led by GFZ scientist Torsten Sachs performed a study in a 10,000 square kilometers wide area in Northern Canada.

Both tsunamis had waves between 50 and 120 meters tall, and flooded up to 1 million square kilometers — roughly the same area affected by the tsunami caused by the dinosaur - killing asteroid that hit Earth 66 million years ago.

What once blanketed 1.3 million square kilometers and ranked as one of the world's largest tropical forests had shrunk to 8 % of its former size by 1973, when protective laws were put in place.

The largest single - day ozone hole ever recorded by satellite was 29.9 million square kilometers (11.5 million square miles) on Sept. 9, 2000.

The four cases appear to have been infected in early July just north of downtown Miami in an area of about 2.5 square kilometers, the Florida health department reported after doing intensive investigations to rule out the possibility that the patients were infected by traveling to affected countries or via sex with infected people.

They were able to distinguish areas 30 meters by 30 meters and determined that selective logging ranged from 12,000 square kilometers to nearly 20,000 square kilometers in some states.

In the last two years alone, over 2.6 million square kilometers have been added to the portion of the global ocean covered by MPAs, bringing the total to over 14.9 million square kilometers.

A 3 - year field study in Yellowstone National Park, published in 2003, revealed that wolves there each month abandon between 85 and 156 kilograms of meat for every 100 square kilometers of their range, or between one - third and two - thirds the average amount left by pumas.

The new research solves this mystery by connecting the atmospheric waves to vibrations of the Ross Ice Shelf — the largest ice shelf in the world with an area of almost half a million square kilometers (188,000 miles), roughly the size of France.

Their findings revealed that cardiology and neurologic inpatient prevalence rates (the proportion of a population found to have been hospitalized per 100 residents per year) were significantly higher in areas closer to active wells, as determined by the proximity of wells to a person's home and their density as defined by the number of active wells per square kilometer.

Using a helicopter for just 20 hours of flight time in April 2012, a consortium put together by Evans imaged 370 square kilometers of terrain, encompassing Angkor and two nearby temple complexes, Phnom Kulen and Koh Ker.

Overall, these findings mean that the three California amphibian species will become critically endangered — defined as inhabiting less than 100 square kilometers — by 2100.

Steve: And we've got another, the Square Kilometer Array, a gigantic radio telescope, is supposed to go up in, it's not going to be in space, it's Earth based, supposed to be built by 2020; and that ought to maybe provide some information if you get to the bottom of this.

Its latest target: 10,000 square kilometers of the equatorial Pacific, 600 kilometers west of the Galápagos — by far the most ambitious and controversial iron - seeding plan yet.

An international team led by Madhava Meegaskumbura of Boston University and Sri Lanka's Wildlife Heritage Trust categorized all the amphibians they could find in a 750 - square - kilometer patch of remaining rain forest.

Using a numerical model developed by the Max Planck Institute for Meteorology and the German Weather Service, the team created two simulations of convectional organization over a 312,000 - square - kilometer grid with 1 - kilometer spacing.

It covers an area of 3000 square kilometers with approximately 1600 surface detector stations which detect cosmic ray shower particles directly, as well as four fluorescence detectors which overlook the atmosphere above the surface array and detect fluorescence light emitted by shower particles.

In this image released by NASA, the hole appears as a giant blue blob which spreads over about 11 million square miles (28.3 milion square kilometers).

Studies in a sub-basin of China's longest river As part of this study, funded by the German Research Association (DFG), the team examined an area of about 1,700 square kilometers located in the Yangtzekiang River watershed, namely a tributary of the Poyang lake in Southern China.