Featured Research

from universities, journals, and other organizations

Nocturnal wind maximum mapped for first time

Date:
December 20, 2009
Source:
NWO (Netherlands Organization for Scientific Research)
Summary:
On beautiful, sunny days with quiet weather conditions a strong wind develops in the evening at a height of about 200 meters. Scientists have now mapped how such a powerful wind develops high in the air.

On beautiful, sunny days with quiet weather conditions a strong wind develops in the evening at a height of about 200 metres. Peter Baas is the first to map how such a powerful wind develops high in the air. With his research he has made an important contribution to the improvement of weather and climate models. Knowledge of these air currents is also important for the aviation sector and the generation of wind energy.

During the evening the wind near the ground often dies down, in contrast to the wind several hundred metres above the ground that strongly increases at this time. This is because cooled air just above the Earth's surface remains hanging under warmer air above. The wind speed at an altitude of several hundred metres is strongly dependent on how the cool and warm air mix. The mixing stops during the night and a stable boundary layer develops. On the upper side of this layer the wind speed can rapidly increase. Peter Baas investigated how cold air and higher layers of warm air mix.

The researcher analysed the maximum wind speed at night using the measurements from the 200 m high KNMI measurement mast in Cabauw. Furthermore, he tested the processes that play a role in the development of the nocturnal wind maximum and showed how the mixing of air layers must be represented in models to predict nocturnal wind speeds.

The research of Peter Baas was part of the project Land Surface Climate and the Role of the Stable Boundary Layer PART 2. This project took place within the NWO theme Sustainable Earth and the research of Baas was funded by NWO.


Story Source:

The above story is based on materials provided by NWO (Netherlands Organization for Scientific Research). Note: Materials may be edited for content and length.


Cite This Page:

NWO (Netherlands Organization for Scientific Research). "Nocturnal wind maximum mapped for first time." ScienceDaily. ScienceDaily, 20 December 2009. <www.sciencedaily.com/releases/2009/12/091215160853.htm>.
NWO (Netherlands Organization for Scientific Research). (2009, December 20). Nocturnal wind maximum mapped for first time. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2009/12/091215160853.htm
NWO (Netherlands Organization for Scientific Research). "Nocturnal wind maximum mapped for first time." ScienceDaily. www.sciencedaily.com/releases/2009/12/091215160853.htm (accessed April 17, 2014).

Share This



More Earth & Climate News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Great British Farmland Boom

The Great British Farmland Boom

Reuters - Business Video Online (Apr. 17, 2014) Britain's troubled Co-operative Group is preparing to cash in on nearly 18,000 acres of farmland in one of the biggest UK land sales in decades. As Ivor Bennett reports, the market timing couldn't be better, with farmland prices soaring over 270 percent in the last 10 years. Video provided by Reuters
Powered by NewsLook.com
Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Change of Diet Helps Crocodile Business

Change of Diet Helps Crocodile Business

Reuters - Business Video Online (Apr. 16, 2014) Crocodile farming has been a challenge in Zimbabwe in recent years do the economic collapse and the financial crisis. But as Ciara Sutton reports one of Europe's biggest suppliers of skins to the luxury market has come up with an unusual survival strategy - vegetarian food. Video provided by Reuters
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins