Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin megacity during spring 2010

نویسندگان

  • S. Newman
  • S. Jeong
  • M. L. Fischer
  • X. Xu
  • C. L. Haman
  • B. Lefer
  • S. Alvarez
  • B. Rappenglueck
  • E. A. Kort
  • A. E. Andrews
  • J. Peischl
  • K. R. Gurney
  • C. E. Miller
چکیده

Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA Atmospheric Science Department, Lawrence Berkeley National Laboratory, MS 90K-125, 1 Cyclotron Rd., Berkeley, CA, 94720, USA Department of Earth System Science, University of California, Irvine, CA 92697, USA Department of Earth and Atmospheric Sciences, The University of Houston, 4800 Calhoun Road, Houston, Texas 77004, USA Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109, USA NOAA ESRL Global Monitoring Division, 325 Broadway, Boulder, CO 80305, USA CIRES, University of Colorado Boulder, Boulder, CO 80309, USA

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mapping CH4 :CO2 ratios in Los Angeles with CLARS-FTS from Mount Wilson, California

The Los Angeles megacity, which is home to more than 40% of the population in California, is the second largest megacity in the United States and an intense source of anthropogenic greenhouse gases (GHGs). Quantifying GHG emissions from the megacity and monitoring their spatiotemporal trends are essential to be able to understand the effectiveness of emission control policies. Here we measure c...

متن کامل

Emissions of greenhouse gases from a North American megacity

[1] Atmospheric column abundances of carbon dioxide (CO2), carbon monoxide (CO), methane (CH4) and nitrous oxide (N2O) have been measured above the South Coast air basin (SCB), a densely populated urban region of Southern California, USA, which includes Los Angeles and the surrounding suburbs. Large diurnal variations in CO and CH4 are observed which correlate well with those in CO2. Weaker cor...

متن کامل

Surface observations for monitoring urban fossil fuel CO2 emissions: Minimum site location requirements for the Los Angeles megacity

[1] The contemporary global carbon cycle is dominated by perturbations from anthropogenic CO2 emissions. One approach to identify, quantify, and monitor anthropogenic emissions is to focus on intensely emitting urban areas. In this study, we compare the ability of different CO2 observing systems to constrain anthropogenic flux estimates in the Los Angeles megacity. We consider different observi...

متن کامل

Where do fossil fuel carbon dioxide emissions from California go? An analysis based on radiocarbon observations and an atmospheric transport model

[1] Characterizing flow patterns and mixing of fossil fuel-derived CO2 is important for effectively using atmospheric measurements to constrain emissions inventories. Here we used measurements and a model of atmospheric radiocarbon (C) to investigate the distribution and fluxes of atmospheric fossil fuel CO2 across the state of California. We sampled C in annual C3 grasses at 128 sites and used...

متن کامل

On the sources of methane to the Los Angeles atmosphere.

We use historical and new atmospheric trace gas observations to refine the estimated source of methane (CH(4)) emitted into California's South Coast Air Basin (the larger Los Angeles metropolitan region). Referenced to the California Air Resources Board (CARB) CO emissions inventory, total CH(4) emissions are 0.44 ± 0.15 Tg each year. To investigate the possible contribution of fossil fuel emis...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012