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Atmospheric Measurement Techniques
Scopus
ISSN 1867-1381 · Copernicus Publications · 5,457 articles in the index
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Derivation and validation of a refined dust product from Aeolus (L2A+)
Originally designed as a wind lidar without depolarization measurement capability, ALADIN (Atmospheric Laser Doppler Instrument) detects only the co-polar component of the backscattered signal, limiting the accuracy of optical products in the presence of depolarizing atmospheric layers. The absence…
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Decomposition of three aerosol types using lidar-derived depolarization ratios at two wavelengths
Lidar-based algorithms for aerosol-type separation have the potential to improve air-quality assessments, estimates of aerosol direct and indirect radiative forcing, and the detailed characterization of their vertical distribution. In this study, we present an easy-to-apply algorithm that employs…
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Algorithms to retrieve aerosol optical properties using lidar measurements on board the EarthCARE satellite
The Earth Cloud Aerosol and Radiation Explorer (EarthCARE) is a joint Japanese-European satellite observation mission for understanding the interaction between cloud, aerosol, and radiation processes and improving the accuracy of climate change predictions. The EarthCARE satellite was equipped with…
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Path-CVP (pCVP) – polarimetric radar data snapshot along the predefined path based on Columnar Vertical Profiles
Recently introduced Columnar Vertical Profiles (CVPs) arrange polarimetric radar data collected via plan position indicator (PPI) scans in height vs. time format at a single location. A novel method for polarimetric radar data processing and visualization, path-CVP (pCVP), is introduced. It…
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Assessing non-ideal instrumental effects in high-resolution FTIR spectroscopy: instrument performance characterization
This study investigates the impact of non-ideal instrumental effects on the performance of high-resolution Fourier Transform Infrared (FTIR) spectrometers, with a focus on the Bruker FTS 120M. Key non-idealities, including retroreflector misalignments, baseline drift, and spectral channeling, were…
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Uncertainty and retrieval sensitivity in TROPOMI-based methane inversions over the North Slope of Alaska
The Arctic is experiencing unprecedented environmental changes with rapidly rising temperatures. Emissions of methane (CH4) – a potent greenhouse gas – may be increasing from the region, making accurate monitoring essential. The TROPOspheric Monitoring Instrument (TROPOMI) instrument offers high…
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ACROPOLIS: Munich urban CO2 sensor network
Urban areas are major contributors to anthropogenic CO2 emissions, yet detailed monitoring remains a challenge due to the cost and operational constraints of traditional sensor networks. As a scalable alternative, we established the ACROPOLIS (Autonomous and Calibrated Rooftop Observatory for…
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Version 8 IMK/IAA MIPAS measurements of ClO
Global distributions of chlorine monoxide (ClO) were retrieved from infrared limb emission spectra recorded with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), covering the time period from July 2002 to April 2012. The retrieval was performed by constrained non-linear least…
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Validation of SNPP OMPS limb profiler version 2.6 ozone profile retrievals against correlative satellite and ground based measurements
The Ozone Mapping and Profiler Suite Limb Profiler (OMPS LP) was launched onboard the Suomi National Polar-orbiting Partnership (SNPP) satellite in 2011 and began routine science operations in April 2012. The OMPS LP uses measurements of scattered solar radiation in the ultraviolet, visible and…
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Aerosol variability over oceans using micro-pulse lidar and photometer: insights from TRANSAMA ship-based campaign
The TRANSAMA campaign (Transit to AMARYLLIS-AMAGAS oceanographic cruise), conducted aboard the research vessel Marion Dufresne II assessed instrument performance and investigated aerosol properties during its transit from La Reunion Island to Barbados (April–May 2023). A set of remote sensing…
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Atmospheric deposition of microplastics: a sampling and analytical method including the associated measurement uncertainties
Microplastics (MPs) are environmental contaminants of global concern, and the atmosphere may play an important role in their environmental distribution. In this study, we developed a tailored analytical chain – including sample collection, processing, and analysis based on optical microscopy and…
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Signal processing to denoise and retrieve water vapor from multi-pulse-length lidar data
Recent hardware developments for the MicroPulse DIAL enable the transmitter to switch between output pulses that are “longer” (higher pulse energy) and “shorter” (low pulse energy) in duration on a shot-to-shot basis. While the longer laser pulses broadly result in higher signal-to-noise ratio…
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Quality aspects of Fengyun3 D∕E radio occultation bending angle products
This study systematically evaluated the quality of ionosphere-corrected bending angles from Fengyun3 (FY3) D/E satellites (equipped with GPS and BDS receivers) using ERA5 data as references and MetOp products as comparisons. The quality of subsequent retrieved optimized bending angles…
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The Lightning Differential Space framework: multiscale analysis of stroke and flash behavior
Lightning flashes play a key role in the global electrical circuit, serving as markers of deep convection and indicators of climate variability. However, this field of research remains challenging due to the wide range of physical processes and spatiotemporal scales involved. To address this…
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Mapping stratospheric nitric acid (HNO3) patterns in the extratropics with nadir-viewing infrared sounders – a retrieval perspective
With this paper, we aim to demonstrate how stratospheric HNO3 can be retrieved from nadir hyperspectral infrared (IR) measurements such that it is largely uncorrelated with tropospheric HNO3 and most other interfering signals. This is achieved by decomposing the set of HNO3 sensitive channels into…
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Impact of stray light on greenhouse gas concentration retrievals and emission estimates as observed with the passive airborne remote sensing imager MAMAP2D-Light
MAMAP2D-Light is an airborne passive remote sensing imaging push-broom spectrometer developed at the Institute for Environmental Physics at the University of Bremen to determine atmospheric methane (CH4) and carbon dioxide (CO2) column anomalies in the 1.6 µm-band to quantify point-source…
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Evaluation of middle atmosphere temperature and wind measurements and their disturbance characteristics by meteorological rockets
It is necessary to carry out the in-situ detection based on the meteorological rocket to deepen the cognitive level of the middle atmosphere environment. However, the effective utilization of rocket data has been limited by a lack of systematic research into data accuracy and the physical…
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Vertical distribution of heat and sodium fluxes in the mesopause region measured by sodium lidar over Hainan, China (109° E, 19° N)
We present the first lidar-based characterization of seasonal variations in gravity–wave induced vertical heat flux, sodium flux, and associated parameters – sodium density and temperature – between 80 and 100 km over Hainan, China (19° N, 109° E). Observations were carried out using a narrow band…
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All-in-one: validation and versatile applications of a novel chemical ionization mass spectrometer for simultaneous measurements of volatile organic and inorganic compounds
Volatile organic compounds (VOCs) and volatile inorganic compounds (VICs) are crucial players in atmospheric chemistry, and their coexistence in industrial environments, particularly semiconductor manufacturing, presents significant obstacles to production yields. The simultaneous and…
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Impact of reflected shortwave anisotropy on satellite radiometer measurements of the Earth's energy imbalance
The Earth's energy imbalance is the difference between incoming solar radiation and outgoing reflected and emitted radiation from the Earth, and quantifies the current ongoing accumulation of energy in the Earth's climate system. There are indications that the imbalance is growing, and it is…
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