Advertisements
//
you're reading...
Health & Environment

Heat wave in China


China - Land Surface Temerature Anomaly

China – Land Surface Temperature Anomaly

chinalsta_tmo_2013217_paletteFor the entire month of July and the first half of August, eastern China baked in a record-breaking heat wave.

Nineteen provinces endured   above-normal temperatures. Shanghai broke its all-time record high three times in as many weeks. The current record – 40.8 degrees Celsius (105.4°F) – was set on August 7, 2013. At least 40 people have died during the heat wave, including ten in Shanghai, according to the Xinhua news service.

During a heat wave, ground temperatures soar, particularly in urban areas where there are fewer plants to cool the ground with shade and evapotranspiration.  Paved or metallic surfaces can become warm enough to cook food.

These two images show land surface temperatures as measured by two different satellites.

The image above shows temperature anomalies across China between August 5 and August 12, 2013, as observed by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite. Red areas are warmer than the long-term average for the week, while cooler-than-average temperatures are blue.

While much of China was warm during this period, the worst of the heat wave was concentrated near the coast and in Tibet. This weather pattern is tied to a subtropical high-pressure system parked over southern China, according to the China Meteorological Administration.

Though miserable everywhere, the heat wave was likely worst in China’s cities, where manmade surfaces absorb heat during the day and cool slowly at night. As a result, cities are warmer during the day and slower to cool at night, making an extended heat wave more uncomfortable, and more deadly, in a city.

The image below shows this “urban heat island” effect in Shanghai.

Land Surface Temperature

Land Surface Temperature, Shanghai

The image was made with shanghailst_oli_2013225_palettemeasurements taken on August 13, 2013 by the Thermal Infrared Sensor on the Landsat 8 satellite. The warmest surfaces are yellow, while cooler surfaces are pink. The image shows pockets of very warm areas, particularly downtown, surrounded by cooler suburban areas. The dark purple dots are cold clouds.

Chinese officials have declared a weather emergency, warning residents to limit time outdoors. It is the first time the country has issued a weather warning for heat. China’s National Meteorological Center expected the heat to break sometime after August 15.

Source:  Heat wave in China  ( NASA.org)
 
 
Advertisements

About Political Atheist

Living in South East Asia (Vietnam & Cambodia). At the ending/starting point of the more than 1000 year old SIlk Road.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Advertisements

Follow us on Facebook

Craig Hill Training Services Facebook

Get An Australian Diploma

Learn How To Sell Real Estate To Chinese Buyers

Sell Your Real Estate To Chinese Investors

China Daily Mail

China Daily Mail is not affiliated in any way with The China Daily or the government of the People's Republic of China.

Enter your email address to receive an email each time an article is published, or join our RSS feed. 100% FREE.

Want to write for China Daily Mail?

Read "Contributor Guidelines" above to join our team of 68 contributors. Write news or opinion about issues in China, or post photos and video. Promote your own site.

Recent Posts

China Daily Mail Stories Have Been Featured In:

%d bloggers like this: