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21.08.2013
Regional cloud changes, such as those that result in less rain during monsoons in India and those that indicate a widening of the tropics, may be as important to watch as the overall amount of cloud cover, new University of Washington research indicates.
These figures illustrate the shift of cloud cover associated with the jet streams over land by latitude over the past 40 years.
Authors of the paper, led by Ryan Eastman, a UW research scientist in atmospheric sciences, set out to examine observations collected from weather stations around the world as a way to study the distribution of clouds. Among the many reasons that scientists study clouds are that cloud properties are expected to change with global warming and clouds have an impact on temperature and rainfall. Eastman and co-author Stephen Warren, a UW professor of atmospheric sciences and of Earth and space sciences, found that from 1971 through 2009 cloud cover over land globally declined 0.4 percent per decade.
Because scientists would need to examine much more data about changes in types of clouds at different altitudes at different locations in different seasons, it’s difficult to ascertain how important this change in cloud cover over land is. The research was based on visual observation that doesn’t include information about important changes to cloud features like thickness or the ability to reflect light. For instance, the researchers found a significant poleward shift in the cloud cover associated with the mid-latitude storm track, often described as the jet stream, as well as a shift poleward in the dry, cloud-free areas over the subtropical deserts. In 2006, UW scientists were the first to suggest that the jet stream was shifting, leading to an expansion of the world’s driest regions.
Cumuliform clouds decreased and low stratiform clouds increased over Northern India, consistent with a drying trend in the region. In their research, Eastman and Warren also discovered significant changes in clouds over Northern India that are consistent with a drying trend there. The change could be caused by heavy pollution containing large amounts of black carbon in the area.
In northeastern China, which like India has also experienced droughts along with a large increase in pollution, the researchers were unable to identify a similar pattern. For example, they detail anomalies they found with data from weather stations in Russia that appeared to show a dramatic change in clouds over some areas. Eastman and Warren also face a possible reduction in the overall volume of data they are able to collect.
Since the launch of the new-look weather site back in February, we have continued to develop it, and we have moved content from the old site. The next release of improvements, coming soon, will be visibly more noticeable than others we've made since February. These are part of our continuing effort to make the site clearer and easier to use, whether you use the site to get a quick snapshot of the current forecast or want more detailed information about the weather conditions.
Following feedback from our audiences, and ideas from our weather team, we have made it easier to "Find a Forecast" when you arrive and easier to scan the 24-hour and five-day forecasts to see the weather trend over the coming hours or days.
Everything you found on the site before, you'll still find there now - it'll just be easier to get to the forecast information you need.
When you arrive, you will see our Forecast Finder has more prominence and a new UK Summary gives a quick snapshot of the weather across the UK.
Once you've found your local forecast, you will see that the 24-hour and five-day information is arranged on two tabs again. As I said above, these improvements are building on the work we started in February and we'll continue to add further improvements and new features in the coming weeks and months. Among the major findings reported in this assessment are that droughts, heavy downpours, excessive heat, and intense hurricanes are likely to become more commonplace as humans continue to increase the atmospheric concentrations of heat-trapping greenhouse gases. The full CCSP 3.3 report, Weather and Climate Extremes in a Changing Climate, and a summary FAQ brochure are available online. Global warming of the past 50 years is due primarily to human-induced increases in heat-trapping gases, according to the report.
Abnormally hot days and nights, along with heat waves, are very likely to become more common. Sea ice extent is expected to continue to decrease and may even disappear in the Arctic Ocean in summer in coming decades.
The strongest cold-season storms in the Atlantic and Pacific are likely to produce stronger winds and higher extreme wave heights.
NOAA plays a key role in the Climate Change Science Program, which is responsible for coordinating and integrating climate research, observations, decision support, and communications of 13 federal departments and agencies. The National Center for Atmospheric Research investigates climate, weather, and other topics related to the atmosphere. Coloring Pages for children is a wonderful activity that encourages children to think in a creative way and arises their curiosity.
Conservation efforts in Central Africa have been variously challenged by poor infrastructure, weak law enforcement and governance, corruption, and civil strife.
The Democratic Republic of Congo (DR Congo) has the greatest extent of tropical rainforests in Africa, covering more than 100 million hectares. While DR Congo's protected areas have faced a number of challenges in recent years, the country has a long history of national parks including being the first country in Africa to create a national park (Virunga National Park for mountain gorillas in 1925).
DR Congo's government has lately taken a strong interest in protecting the country's forests. In coming years the government of DR Congo will be in the unenviable position of having to balance the need to conserve its forests with the needs of its increasingly destitute population--all the while trying to promote stability and economic growth, while servicing its debt.
The Republic of Congo (Brazzaville) is second only to the Democratic Republic of Congo in terms of tropical rainforest coverage among African countries.
In September 2006, the Republic of Congo announced plans to create two new protected areas spanning nearly one million hectares (3,800 square miles).
In September 2002, at the World Summit in Johannesburg, Gabon announced the establishment of its first national park system consisting of a network of 13 parks that would cover 10 percent of the country's lands mass--10,000 square miles (25,900 sq. Today about 16.6 percent of the Central African Republic is under some form of protection, though institutional support for protected areas has historically been weak, and hunters and loggers have continued to operate in national parks.
Equatorial Guinea is located in a region of high animal diversity, including 194 species of mammals, 418 birds, and 91 reptiles (World Resources Institute). We are building a vector graphic marketplace where people like YOU can submit and sell their work to earn lots of money.


Enter your BEST email below to get early access to sell your work when the 4vector marketplace platform is launched. In the north, the cloud cover is slowing moving north and in the south cloud cover is shifting south.
The research was recently published in the American Meteorological Society’s Journal of Climate.
Black carbon absorbs sunlight, creating a warming effect aloft while reducing the amount of sunlight that reaches the surface, cooling it. Instead, they found that the area is experiencing a slight decline in both cumuliform and stratiform clouds.
When they examined data on other kinds of clouds observed from the same stations, they found that those clouds didn’t substantially change, which they regard as unlikely.
It is most likely the result of an undocumented change in observing procedure or training at some stations,” they wrote in the paper. We've also made improvements behind the scenes to make the site quicker to load and even more reliable.
Climate Change Science Program and the Subcommittee on Global Change Research today released a scientific assessment that provides the first comprehensive analysis of observed and projected changes in weather and climate extremes in North America and U.S.
Many types of extreme weather and climate event changes have been observed during this time period and continued changes are projected for this century.
Commerce Department, is dedicated to enhancing economic security and national safety through the prediction and research of weather and climate-related events and information service delivery for transportation, and by providing environmental stewardship of our nation's coastal and marine resources. It is sponsored by the National Science Foundation and managed by a nonprofit consortium of universities, the University Corporation for Atmospheric Research. It is an educational tool and is considered an important contribution to a child's development. The forests in the eastern sector are amazingly diverse as one of the few forest areas in Africa to have survived the ice age.
Already more than 8 percent of DR Congo is protected in reserves, and the government has announced it aims to expand these conservation areas to 10-15 percent of the country. There will be considerable pressure to turn towards forests--at least 60 percent of which are loggable--as a source of income.
It is also strikingly diverse for its size--home to 597 species of birds, 166 mammals, 58 amphibians, 149 reptiles, and more than 6,000 species of plants. Located deep in the Congo Basin rainforest, this part is home to gorillas, chimps, forest elephants, buffalos, and bongos.
The new protected areas are Ougoue-Lekiti National Park, in the western part of the country, and Ntokou-Pikounda, which lies southeast of Odzala Kokoua National Park. With around 80 percent of the country forested, Gabon has an estimated 8,000-10,000 species of plants (20 percent of which are endemic), over 670 species of birds, and nearly 200 mammals including lowland gorillas, chimpanzees, 10 species of monkeys, forest elephants, and even hippos that surf ocean waves. Eight percent of the country is under some form of protection on paper, but enforcement is weak and timber is illegally harvested from reserves and wildlife is poached. The Central African Republic is home to about 3,600 species of plants, 663 birds, 131 mammals, 187 reptiles, and 29 amphibians.
Conducting a review of more than 160 papers and reports on trends in wildlife populations, hunting, and land use in the Congo Basin, an international team of researchers conclude that unless effective management plans are put into place, hunting pressure in the region is likely to increase, with knock-on ecological effects. The special issue, which was put together by Oxford University's Yadvinder Malhi, covers a range of issues relating to the rainforests of the Congo Basin, including deforestation, the impacts of global change, the history and key characteristics of the region's forests, and resource extraction, among others. The massacre occurred at a site renowned as 'village of elephants', where tourists and scientists have for decades observed wild elephants congregating at a large clearing to feed on minerals. In all, poachers have cut down the park's elephant population by two-thirds, decimating what was once believed to be the largest forest elephant population in the world. Arranz and a team of nearly 240 people, 140 guards among them, work to protect a vast area of about 5,000 square kilometers (1,930 square miles) of virgin forest, home to a population of more than 2.300 elephants that are facing a new and more powerful enemy. Located in the eastern edge of the Democratic Republic of Congo (DRC) the park has been assailed by entrenched conflict between rebels and government forces, as well as slash-and-burn farming, the charcoal trade, and a booming human population. The new primate, which is described in a paper in the open access PLoS ONE journal, was first noticed by scientist and explorer, John Hart, in 2007.
The move comes amid criticism from environmental groups that Herakles is converting high conservation value rainforest for the plantation.
The organization, an offshoot of Endangered Species International (ESI), has been spending the last few years studying the bushmeat trade in Pointe-Noire, the country's second largest city, and developing plans for turning hunters into conservationists.
With him, he'll be bringing 400 bandanas sporting beautifully-crafted images of the park's endangered fauna. The act, which was meant to send a strong signal to illegal wildlife poachers across Africa, came only a few days after militia poachers stormed the Okapi Wildlife Reserve in the Democratic Republic of the Congo (DRC). Known as the Goualougo Triangle, the swamp forest is also home to forest elephants (Loxodonta cyclotis) and western lowland gorillas (Gorilla gorilla gorilla).
But is the full conservation of Africa's forests necessary to mitigate global climate change and ensure environmental stability in Africa?
This change supports previous findings that the jet streams are shifting toward the poles.R.
That stabilizes the atmosphere, creating an environment more conducive to the formation of stratiform than cumulonimbus clouds.
The researchers also noticed that the dramatic changes in observed clouds occur in different years at different stations. Beyond the educational virtues, coloring sessions allow us, the adults, a little peace and quiet while the boy or girl enjoy coloring. About 45 percent of DR Congo is covered by primary forest which provides a refuge for several large mammal species driven to extinction in other African countries.
Traditionally, parks in DR Congo have been well-managed compared to protected areas in surrounding countries. While the moratorium was widely ignored, in 2005 the government received a $90-million grant from the World Bank to help it police existing forestry concessions, control new concessions, and develop sustainable management plans for its forests.
The economy of DR Congo has long been highly dependent on natural resource extraction--especially timber harvesting and mining--and this is unlikely to change in the near future.


It, together with LobA?kA? National Park in Cameroon and Dzanga-Ndoki National Park in the Central African Republic, forms a giant protected area consisting of primary lowland rainforest.
The Central African country was the ending point of biologist Michael Fay's 455-day Megatransect across the Congo rainforest.
Previously, Gabon lacked a park system and "protected areas" were sometimes open to logging.
Conserving Cameroon's forests should be a top priority given their high level of biodiversity.
Sanderson, called the area the "mother lode of gorillas," and expressed hope that the discovery would lead to a new park. The guards are encountering not only bigger groups of poachers, but with ever more sophisticated weapons. Peet hopes the bandanas, which he'll be handing out freely to locals, will not only create support and awareness for the fledgling park, but also help local people recognize threatened species.
The assailants killed 13 okapis and six people, including two wildlife rangers, in retaliation for a crackdown against poaching and mining in the protected area. The expansion of the park to include the Goualougo Triangle makes good on a government commitment from 2001.
They tend to produce light rain or drizzle and are less likely to produce heavy rain than cumuliform clouds, which are distinct, vertical clouds created by warm, moist air rising in turbulent updrafts. The Intergovernmental Panel on Climate Change previously evaluated extreme weather and climate events on a global basis in this same context. Not to mention the result: coloring pages for preschoolers are proudly presented at the nursery, kindergarten or even grandma and grandpa's living room! Please note the images are not hosted on our servers, hence some of the images might not download. Overall, the country is known to have more than 11,000 species of plants, 450 mammals, 1,150 birds, 300 reptiles, and 200 amphibians. Before the war, parks were largely funded by fees collected from tourists, so there is hope that returning tourists--encouraged by wildlife and the reconstruction of park facilities--will boost conservation in the country. The government also joined the Coalition for Rainforest Nations, a group of tropical developing nations that sought--and won--money from industrial countries for rainforest protection at the November 2005 climate conference in Montreal.
Gabon is one of few places on Earth where primary tropical rainforest extends all the way to the beach.
The country has some 936 species of birds, 211 mammals, 322 reptiles, 192 amphibians, and 8,260 species of plants. According to Arranz, armed groups such as the Lorda€™s Resistance Army from Uganda are now killing elephants for their ivory.
TL2), a region home to bonobos, okapi, forest elephants, Congo peacock, as well as the newly-described lesula. Poaching has reached epidemic levels in Africa due to increasing bushmeat consumption and a rise in East Asian demand for black-market ivory and rhino horns. However, there has not been a specific assessment across North America prior to this report.
If you like to completely remove your website from our search engine index, please follow the instructions below, "Remove from Index". Still, tourists will not return unless they can be assured that the country is once again safe for foreigners.
Offshore the country has a wealth of marine life including a large population of humpback whales.
In the immediate future, Congo's parks will need to overcome a number of challenges including corruption, continued incursions by armed militias, weak law enforcement, and lack of funds. I often use a push bike and wind speed will make a difference to comfort and journey times. In any event I think wind speed is important in a weather forecast Complain about this comment (Comment number 7) Comment number 8. I think you got carried away in the re-design and actually made it harder to interpret the information quickly. So it's good to see you bring back a better 5-day summary that is closer to the old design. It's been so flat calm since the redesign..absolutely no wind at all!Seriously, please supply some wind information!!!!
I find it so dumbed down now that I don't use the bbc anymore except for the atlantic forecast. I would like to see a 3 page forecast along the lines of the old sysytem showing iosbars , frontal systems , temperatures , wind direction and speed precipitation and radar.
One affects the other , how can I put the local forecat into perspective if i cannot see the weather systems over the British isles and what is coming in from the Atlantic.Please , please , can we have the proper weather maps back?Or failing that would you consider doing a basic and advanced forecast . A basic one for people who are happy just to see symbols next to the place they live and a more advanced version for people who do have some understanding of meteorolgy, with proper weather maps.
If you feel we cant cope with this new info, then educate us, we are not thick, you know, no more dumbing down!
As far as I can tell most comments were ignored except for the introduction of a key to the map symbols and colours.I still much preferred the old look.
I need to know primarily precipitation and wind, but temperature is useful, although not absolutely essential. It presents all the data I need - so why can't the BBC do it with all their resources?I recall that one of the stated aims of the redesign was to make it easier to present the web site and the broadcasts in a compatible fashion, and yet they seem to have diverged considerably.
Well, however bizarre that might have sounded at the time, it is clear from the broadcasts that the wind information is now available to the BBC, so please let us have it on a map, with numbers and not just thick or thin arrows. I want to know that the wind speed and direction is going to be in some detail rather than just thick lines or thin lines that are not easily translated into numbers.



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