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Novel Methods and Approaches for the Remote Ground-Based and Orbital Observations of Carbon Cycle

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Atmospheric Remote Sensing".

Deadline for manuscript submissions: closed (1 October 2022) | Viewed by 3084

Special Issue Editors


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Guest Editor
A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevsky Pereulok 3, 119017 Moscow, Russia
Interests: tropospheric air chemistry; in situ observations; air quality and pollution; ozone; methane
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevsky Pereulok 3, 119017 Moscow, Russia
Interests: atmospheric spectroscopy; air quality; remote sensing methods; orbital observations

Special Issue Information

Dear Colleagues,

During the last few years, we have observed significant progress in satellite and ground-based remote sensing that covers more and more new areas and makes a great contribution to the exploration of the Earth system. The carbon cycle binds together its components (biosphere, pedosphere, geosphere, hydrosphere, and atmosphere), ensuring migration and transformation of the primary life element—carbon. So, biogeochemical processes with participation of carbon included in the main greenhouse gases (carbon dioxide and methane) directly imply climate change—one of the principle challenges for humanity. Carbon-containing air pollutants (carbon monoxide, formaldehyde, black carbon, etc.) are important for air quality and are indicators of economical activity, state of ecology and climate changes. The Earth’s carbon cycle is induced by numerous factors and processes such as atmosphere–biosphere interactions, land use, anthropogenic pollution, wildfires, volcanoes, and so on. Most of them are directly or implicitly monitored from space.

So, this Special Issue is expected to reflect up-to-date levels of spaceborne and ground-based measurements of carbon cycle and to present novel methods and approaches for remote monitoring, including instrumentation, data validation, processing and assimilation for scientific research, and interpreting measurement results. Importantly, the scope of this Special Issue is to introduce researchers to the latest satellite databases and products which can be used to trace carbon chains in different environments around the world. 

We hope that this Special Issue will collect remarkable papers from both scientists and engineers investigating carbon pools in the Earth’s crust and water basins, organic carbon in plants and soils, emissions of carbon-containing substances (greenhouse gases, organic compounds, soot) into the atmosphere and their variations in different time and space resolution in background and urban regions using remote data from both the latest and routine orbital sensors. We also invite work from researchers who use high-quality ground-based data and models to help to validate satellite measurements for carbon cycle investigations.

Dr. Andrey I. Skorokhod
Dr. Vadim S. Rakitin
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Carbon cycle
  • Satellite observations
  • Greenhouse gases
  • Carbon dioxide
  • Methane
  • Carbon monoxide
  • Spectroscopy
  • Atmospheric composition
  • Vegetation
  • Earth system

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Published Papers (1 paper)

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Research

24 pages, 7104 KiB  
Article
Mobile Airborne Lidar for Remote Methane Monitoring: Design, Simulation of Atmospheric Measurements and First Flight Tests
by Semyon V. Yakovlev, Sergey A. Sadovnikov and Oleg A. Romanovskii
Remote Sens. 2022, 14(24), 6355; https://doi.org/10.3390/rs14246355 - 15 Dec 2022
Cited by 6 | Viewed by 2422
Abstract
The results of modernization of a mobile lidar for the airborne monitoring of the methane content in the atmosphere are presented. The modernization was carried out on the basis of in situ tests, several engineering solutions, and preliminary numerical simulations. The in situ [...] Read more.
The results of modernization of a mobile lidar for the airborne monitoring of the methane content in the atmosphere are presented. The modernization was carried out on the basis of in situ tests, several engineering solutions, and preliminary numerical simulations. The in situ tests showed a possibility of sounding background tropospheric methane concentrations along a 500 m surface path. During the modernization, the airborne lidar for methane monitoring was supplemented with an off-axis mirror collimator, which made it possible to reduce the divergence of laser radiation by a factor of 4. The overlapping function was simulated for a biaxial scheme of the mobile lidar with radii of the light-sensitive zone of the receiving optics of 0.1, 0.3, 0.5, 0.8 and 1 mm. The dimensions of the light-sensitive zone were found to provide complete coverage of the field of view of the telescope and a laser beam; the length of the “dead” zone was estimated when a laser beam propagated parallel to the optical axis of the telescope. Airborne methane monitoring in the atmosphere in the informative wavelength range (2916.55–2917 cm−1 on-line and 2915.00 cm−1 off-line) was numerically simulated for midlatitude and Arctic summer. Thus, on the basis of the work carried out, the design of the mobile airborne lidar is substantiated, which is to operate as a part of the Tu-134 “Optik” aircraft laboratory of IAO SB RAS and to perform methane monitoring vertically downwards. The airborne lidar was tested during test flights and the Arctic expedition in 2022. The first experimental results of lidar measurements of the averaged methane concentration vertically downwards from sounding altitudes of 2000–3000, 380, and 270 m were obtained for mid-latitude summer and Arctic summer. Full article
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