New Absorption Bands of Ammonia, Methyl Bromide, Methyl Iodide and Carbon Dioxide in the Infrared Spectrum

1931 ◽  
Vol 38 (1) ◽  
pp. 147-151 ◽  
Author(s):  
W. W. Sleator
1982 ◽  
Vol 72 (2) ◽  
pp. 247-251 ◽  
Author(s):  
S. Rajendran

AbstractThe productivity of adults of Trogoderma granarium Everts was reduced following fumigation of the larvae with high dosages of carbon tetrachloride, ethylene dibromide or phosphine. Carbon dioxide, ethylene oxide, methyl bromide, methyl iodide and trichloroethylene had little influence on the productivity. From 0 to 23 % of surviving larvae diapaused compared with 3 % of untreated ones.


1966 ◽  
Vol 44 (5) ◽  
pp. 1913-1918 ◽  
Author(s):  
K. O. Hartman ◽  
I. C. Hisatsune

Author(s):  
Hung-Yang Jain ◽  
Chih-Tsun Yang ◽  
Li-Kang Chu

The infrared spectrum of the simplest geminal diol, methanediol or methylene glycol (CH2(OH)2), was successfully probed in the gaseous hydration of formaldehyde. The observed absorption bands coincided with the anharmonic...


2019 ◽  
Vol 12 (11) ◽  
pp. 6049-6058 ◽  
Author(s):  
Lianghai Wu ◽  
Otto Hasekamp ◽  
Haili Hu ◽  
Joost aan de Brugh ◽  
Jochen Landgraf ◽  
...  

Abstract. Passive remote sensing of atmospheric carbon dioxide uses spectroscopic measurements of sunlight backscattered by the Earth's surface and atmosphere. The current state-of-the-art retrieval methods use three different spectral bands, the oxygen A band at 0.76 µm and the weak and strong CO2 absorption bands at 1.61 and 2.06 µm, respectively, to infer information on light scattering and the carbon dioxide column-averaged dry-air mole fraction XCO2. In this study, we propose a one-band XCO2 retrieval technique which uses only the 2.06 µm band measurements from the Orbiting Carbon Observatory-2 (OCO-2) satellite. We examine the data quality by comparing the OCO-2 XCO2 with collocated ground-based measurements from the Total Carbon Column Observing Network (TCCON). Over land and ocean the OCO-2 one-band retrieval shows differences from TCCON observations with a standard deviation of ∼1.30 ppm and a station-to-station variability of ∼0.50 ppm. Moreover, we compare one-band and three-band retrievals over Europe, the Middle East, and Africa and see high correlation between the two retrievals with a SD of 0.93 ppm. Compared to the three-band retrievals, XCO2 retrievals using only the 2.06 µm band have similar retrieval accuracy, precision, and data yield.


1981 ◽  
Vol 34 (3) ◽  
pp. 320-324 ◽  
Author(s):  
N. I. Moskalenko ◽  
Yu. A. Il'in ◽  
N. K. Pokotilo ◽  
S. A. Sementsov ◽  
V. T. Pushkin

Sign in / Sign up

Export Citation Format

Share Document