D.卡尔顿 罗西
D. Carlton Rossi

Environment



                                   


Desert dust actually helps manage
manmade air pollution in China



Earth.com

David Beasly


May 11, 2017


According to a new study, dust from the Gobi Desert actually improves manmade air pollution conditions in eastern China’s cities.

The dust plays an important role in determining air temperatures and promotes winds that blow away manmade air pollution, according to the study published May 11 in the journal Nature Communications.

The “paradoxical finding” was made by a team of researchers from the U.S. Department of Energy’s Pacific Northwest National Laboratory and Scripps Institution of Oceanography at the University of California at San Diego.


https://www.earth.com/news/desert-dust-air-pollution/





                                



Tensions rising as Chinese no longer willing
to hold their breath on pollution problems


NATHAN VANDERKLIPPE

SONGTING, CHINA

THE GLOBE AND MAIL


MAR. 19, 2017


People here once farmed rice, peanuts and corn until, in the years before the Beijing Olympics, their fields were transformed into an industrial forest of pipes, stacks and production lines, after iron and steel companies moved away from the capital to leave behind cleaner air for the Games.

Two-hundred kilometres east of Beijing, they erected a metallic forest of emissions towers that belch exhaust and soot. During one severe episode in February, the air grew so thick that residents could no longer see across their narrow streets and workers got lost on the way home.

Air quality worsened in the area around Beijing throughout much of 2016, a trend that has continued this year. Average Beijing air quality in January was among the worst since 2009, the first full year air monitoring statistics are available. The city’s February air, on average, was 35 per cent more polluted this year than last.


excerpts


http://www.theglobeandmail.com/news/world/how-china-is-losing-its-war-onpollution/article34342466/




                                 

                                       


                                        Smog blog

There are no sunny days and ways in China. On the shortest day of the year or December 21st more than 400 pupils sat their exams outdoors in a football field despite thick, choking smog in central China.

The 480 eighth-grade pupils from a middle school in Linzhou, Anyang, Henan province, were made to do so on Monday afternoon after the local education authorities ordered all schools to close from Monday because of severe air pollution, Dahe News reported. Air pollution measured over 400 on the particulate index.

However, smog is pervasive. It falls as black soot instead of snow over Canada. From behind the scenes, under its own hidden agenda, with a sunny way's façade, it blankets Canada in corrupted pollution.




The Long Wall


hung low some

exhausted stale air

insidiously winds round



fire breathing dragon

spews smoke forming

impenetrable Chang Cheng



Meng's tears wash

eyes sooted from

sacrificial brick pyre






D.卡尔顿 罗西

2017年1月2日








                                         


                                                   
        Huanghe

When the poet writes elsewhere of density flow and no flow zone then how can he ignore the real cut-off of flow in the Lower Yellow River which extended for significant parts of the year for over a period of twenty-two years? For example, from 1992 to 1998, average zero flow of the river was 121 days. In 1997, the river dried up for a record 226 days over a 700 kilometer length. There is no unity or harmony in this situation. 

The treatment of seawater to scour the channel was proposed in 1997 by an academician named Lin to solve the sedimentation problem. He proposes that at a proper location, downstream of Lijun, that seawater be used to scour the riverbed and to lower flood stage. He calls for an entire cut-off of flow so there is dry land to achieve best results. Furthermore, he believes that salt water mixed with turbid flow may form a “density current” to carry off sediment far off into the sea. This is an experimental proposal because nothing like it has been done before and it is not without potential negative impact. It must be said, though, in fairness, that this was nearly 20 years ago and he may no longer hold these views in light of subsequent developments.  

 

           The Consequences of Overfishing and Dam Construction   


                           

                               
Fishing Boats at Yellow River Delta
            

The fish spawning ground of the Yellow River Estuary affects both Bohai Sea and Yellow Sea; as well as, the biological reproduction and fishery resources of the northern China Sea. However, the system has been compromised by overfishing and dam construction. The effect of each will be briefly described.

Overfishing and more recently trawling mean that fish stocks have drastically declined since 1959. Since the 1980’s the dominant, large-size, economic fish such as the Largehead Hairtail has been replaced by short-lived, plankton eating pelagic fish such as the Scaly Hairfin Anchovy. The fish biodiversity has declined markedly. This has led to a series of cascading effects which were generally unplanned, unforeseen and undesirable. 


                         

                    
 Aquaculture industry along Yellow River Delta Coast

As if there were not enough environmental problems on the delta there is a new one emerging. It is subsidence caused by aquaculture. This industry pumps water from compressible sediments underground. Synthetic Aperture Radar (SAR) has shown “that subsidence rates are as high as 250 mm/y at aquaculture facilities.” In the above picture taken in 2012, water appears dark blue which demonstrates the great number of aquaculture facilities on the delta coast. (Land subsidence at aquaculture facilities in the Yellow River delta, China)



                                   

                                           Xiaolangdi Reservoir on Yellow River
                                                  (courtesy Daily Mail, UK.)

Dam or reservoir construction has been prolific in the Yellow River Basin. Before 2007, a total of 2,752 dams or reservoirs have been built. This includes 22 mid-size and large reservoirs. Four large dams were also constructed between 1960 and 1999. The delta is subsiding because of a decline in sediment flux and runoff. This leads to coastal erosion in the basin and strong storm surges causing flooding and a series of serious cascading effects. 

It has been thought for five thousand years that the Yellow River cannot be tamed. The Yellow River has severely changed its course 26 times prior to 1946. It has flooded 1,593 times in recorded history (en.wikipedia.org/wiki/Yellow_River).

 Why do some civilized Chinese of a new Motherland think they can harness on a grand scale what was known as The Ungovernable or the Mother of the Cradle of Chinese civilization known as the Huang He?



 

1.  Higgins, S., I. Overeem, A. Tanaka, and J. P. M. Syvitski (2013), Land subsidence at aquaculture facilities in the Yellow River delta, China, Geophys. Res. Lett., 40, 38983902, doi:10.1002/grl.50758.


2. Xiujuan Shan, Pengfei Sun, Xianshi Jin, Xiansen Li, and Fanquan Dai, Long-Term Changes in Fish Assemblage Structure in the Yellow River Estuary Ecosystem, China. Source: Marine and Coastal Fisheries: Dynamics, Management and Ecosystem Science, 5(): 65-78: Published by : American Fisheries Society.

www.bioone.org/doi/full/10.1080/19425120.2013.768571

3. Wenxue LI, Kairong WANG, EVOLUTION OF THE YELLOW RIVER ESTUARY AND ITS SEDIMENTATION PROBLEMS, International Conference on Estuaries and Coasts, November 9-11, 2003, Hanzhou, China.

4. (en.wikipedia.org/wiki/Yellow_River)



             

  •                    Huánghé

     


       There will be much time to wait

       for the return of the old Huánghé

       which flows from the Bayan Har.


        As newborn, I was buried in clay pot

        molded by umbilical of coiled cord

        and fired hot by heat of firewood.

                  
        Let my broken bones and clay shards

        be restored by the silted waters of Hé

        to vessel from clay painted as rén miàn yú.




                                日月


        Image of sun and moon reflect on pond.

        The Fèng resurrects from flames.

        The Huáng leaps in dance from water.





                             The Battles


          Bǎnquán and  Zhuōlù were won or lost.

          No one now knows where sought or fought.

          Only those dead know with certainty.   




                         To the Yán-Huáng zǐsūn   


          Fèng and huáng meet to become Fènghuáng.

          Fènghuáng leaps for joy and Dragon lifts with power.

          Vision of Yán-Huáng zǐsūn is inspirational.





                               The Estuary


            Yang stream flows above and yin below.

            The streams flow in opposite directions.

            No flow zone separates and accelerates flow.




    D.卡尔顿 罗西

    2017年3月11日  






    Reference


    Flow, water mass changes, and hydraulics in the Bosphorus Michael C. Gregg and Emin  Özsoy

    • First published: 7 March 2002Full publication history
    • DOI: 10.1029/2000JC000485View/save citation
      • Provider: John Wiley & Sons, Ltd
      • Content:text/plain; charset="UTF-8"
      •  
      • TY  - JOUR
      • AU  - Gregg, Michael C.
      • AU  - Özsoy, Emin
      • TI  - Flow, water mass changes, and hydraulics in the Bosphorus
      • JO  - Journal of Geophysical Research: Oceans
      • JA  - J.-Geophys.-Res.
      • VL  - 107
      • IS  - C3
      • SN  - 2156-2202
      • UR  - http://dx.doi.org/10.1029/2000JC000485
      • DO  - 10.1029/2000JC000485
      • SP  - 2-1
      • EP  - 2-23
      • KW  - straits
      • KW  - hydraulic controls
      • KW  - mixing
      • KW  - turbulence
      • KW  - Bosphorus
      • KW  - 4223 Descriptive and regional oceanography
      • KW  - 4243 Marginal and semi-enclosed seas
      • KW  - 4219 Continental shelf and slope processes
      • KW  - 4568 Turbulence, diffusion, and mixing processes
      • PY  - 2002