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Open AccessJournal ArticleDOI

Balloon-borne tropospheric CO2 observations over the equatorial eastern and western Pacific

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TLDR
In this article, a backward trajectory analysis, taking account of convective mixing processes using geostationary satellite cloud-image data, is applied to the measured CO2 profiles to estimate the origin of the observed air masses.
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This article is published in Atmospheric Environment.The article was published on 2018-07-01 and is currently open access. It has received 11 citations till now. The article focuses on the topics: Mixing ratio & Air mass.

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Development of Drone-Mounted Multiple Sensing System with Advanced Mobility for In Situ Atmospheric Measurement: A Case Study Focusing on PM2.5 Local Distribution

TL;DR: In this paper, the authors used a drone with advanced mobility to develop a unified sensor and communication system as a new platform for in situ atmospheric measurements, where a small, lightweight, simple, and cost-effective multi-sensor system was developed for multiple measurements of atmospheric phenomena and related environmental information.
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Lower-stratospheric aerosol measurements in eastward-shedding vortices over Japan from the Asian summer monsoon anticyclone during the summer of 2018

TL;DR: In this article, the authors investigated the aerosol characteristics of these vortices by analysing data from two lidar systems in Japan, at Tsukuba (36.1°N, 140.5°E) and Fukuoka (33.55°N and 130.36°E), during the summer of 2018.
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Measuring Regional Atmospheric CO2 Concentrations in the Lower Troposphere with a Non-Dispersive Infrared Analyzer Mounted on a UAV, Ogata Village, Akita, Japan

TL;DR: In this article, a simple measuring system prototype that uses an unmanned aerial vehicle (UAV) and a non-dispersive infrared (NDIR) analyzer to detect regional carbon dioxide (CO2) concentrations and obtain vertical CO2 distributions was developed.

The state of greenhouse gases in the atmosphere using global observations through 2013

TL;DR: In 2019, the globally averaged surface mole fractions calculated from this in situ network reached new highs in 2019, with CO 2 at 410.5 ± 0.2 ppm, CH 4 at 1877 ± 2 ppb, and N 2 O at 332.0 ± 0.1 ppb.
References
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Journal ArticleDOI

A possible response of the atmospheric Hadley circulation to equatorial anomalies of ocean temperature

TL;DR: Weakness and temporary elimination of the equatorial easterly winds over the eastern and central Pacific in late 1957 and early 1958 brought about a brief cessation of equatorial upwelling which in turn caused the occurrence of above-normal surface water temperatures in the tropical Pacific from the American coast westward to the dateline as discussed by the authors.
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Evidence for interannual variability of the carbon cycle from the National Oceanic and Atmospheric Administration/Climate Monitoring and Diagnostics Laboratory Global Air Sampling Network

TL;DR: In this article, the distribution and variations of atmospheric CO2 from 1981 to 1992 were determined by measuring CO2 mixing ratios in samples collected weekly at a cooperative global air sampling network.
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The Concentration and Isotopic Abundances of Carbon Dioxide in the Atmosphere

TL;DR: In this article, a systematic variation with season and latitude in the concentration and isotopic abundance of atmospheric carbon dioxide has been found in the northern hemisphere and a small but persistent increase in concentration in Antarctica.
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