Space-based observations of megacity carbon dioxide
نویسندگان
چکیده
منابع مشابه
Observations of increasing carbon dioxide concentration in Earth's thermosphere
Carbon dioxide occurs naturally throughout Earth’s atmosphere. In the thermosphere, CO2 is the primary radiative cooling agent and fundamentally affects the energy balance and temperature of this high-altitude atmospheric layer1,2. Anthropogenic CO2 increases are expected to propagate upward throughout the entire atmosphere, which should result in a cooler, more contracted thermosphere3–5. This...
متن کاملTop-down estimation of carbon monoxide emissions from the Mexico Megacity based on FTIR measurements from ground and space
Continuous carbon monoxide (CO) total column densities above the Universidad Nacional Autónoma de México (UNAM) campus in Mexico City have been derived from solar absorption infrared spectroscopic measurements since October 2007. Its diurnal evolution is used in the present study in conjunction with other ground-based and satellite data to develop a top-down emission estimate of the annual CO e...
متن کاملMeasurement of Carbon Dioxide Column via Space Borne Laser Absorption
In order to better understand the budget of carbon dioxide in the Earth's atmosphere it is necessary to develop a global high precision understanding of the carbon dioxide column. In order to uncover the 'missing s ink that is responsible for the large discrepancies in the budget as we presently understand it calculation has indicated that measurement accuracy on the order of 1 ppm is necessary...
متن کاملSensitivity studies for space-based measurement of atmospheric total column carbon dioxide by reflected sunlight.
The feasibility of making space-based carbon dioxide (CO2) measurements for global and regional carbon-cycle studies is explored. With the proposed detection method, we use absorption of reflected sunlight near 1.58 microm. The results indicate that the small (degrees 1%) changes in CO2 near the Earth's surface are detectable provided that an adequate sensor signal-to-noise ratio and spectral r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2012
ISSN: 0094-8276
DOI: 10.1029/2012gl052738