Results 161 to 170 of about 2,465,580 (245)

Assimilation of Atmospheric CO2 Concentration in the ORCHIDEE Land Surface Model: Exploring the Added Value of Explicit Forest Regrowth Representation

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract The land absorbs a large proportion of human‐induced carbon emissions, yet the spatial distribution of this carbon sink remains uncertain. Land surface models (LSMs) and atmospheric inversions often diverge on the spatial distribution of carbon sink, with models generally underestimating the northern land sink (above 30°N).
Simon Beylat, Philippe Peylin, Nina Raoult, Michael O’Sullivan, Antoine Berchet, Frederic Chevallier, Peter J. Rayner   +6 more
wiley   +1 more source

Application of geometrical form factor in differential absorption lidar measurement

, 1997
The peak position for a lidar return signal is calculated and measured for the horizontal path with variation of the laser beam divergence angle (theta), and the inclination angle (delta) between the telescope and laser axes.
Dho, SW, Park, YJ, Kong, Hong-Jin
core   +1 more source

Process‐Based Model Parameters for Post‐Fire Snow Hydrology: Looking Beyond Snow Albedo and Vegetation

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Wildfires fundamentally alter snow accumulation and melt dynamics by modifying forest canopy structure, snow albedo, and snowpack physical properties. Despite the growing body of work on fire impacts on snow, few studies have used physically based models to simulate post‐fire changes, and none have examined the global parameter sensitivities ...
Arielle Koshkin, Adrienne M. Marshall, Andy Wood   +2 more
wiley   +1 more source

Lakes Amplify Carbon Emissions Relative to Downstream Export in Aquatic Networks

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Inland waters emit and export large quantities of carbon (C), and the balance between emission and export determines the role of inland waters in the global C cycle. Modeling studies of stream‐lake networks suggest that C emission‐to‐export ratios (emission:export) are higher in lake‐rich networks with longer network residence times (NRT), yet
F. Alriksson, G. Rocher‐Ros, M. Klaus, C. Gudasz, V. Hazuková, D. Vachon, L. E. Polvi, M. Rosvall, J. Karlsson   +8 more
wiley   +1 more source

Vertical Redistribution of Ozone Precursor Proxies During Typhoon Peripheral Periods: Insights From MAX‐DOAS and GEOS‐Chem

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Typhoon peripheral conditions modulate the formation and atmospheric fate of ozone precursors, yet the vertical distribution and the underlying physical‐chemical drivers remain less constrained. Here, we examine the vertical profiles of ozone precursor proxies, including formaldehyde (HCHO), glyoxal (CHOCHO), and nitrogen dioxide (NO2), in the
Xicheng Li, Song Liu, Peng Zhang, Xue Zhang, Yali Li, Xingyi Wu, Jiaming Zhang, Yuchen Huang, Xiangyu Luan, Longchang Zhang, Xin Yang, Huizhong Shen, Jianhuai Ye, Chen Wang, Tzung‐May Fu, Lei Zhu   +15 more
wiley   +1 more source

Data collection and analysis for HCl, SO , and NO immission-emission differential absorption lidars

, 1985
With 3 figs., 1 tab.SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische ...
Heinrich, H.J., Weitkamp, C., Breinig, A., Staehr, W., Lahmann, W., GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany), Michaelis, W. (GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany). Inst. fuer Physik)   +6 more
core  

The Role of Lightning in Atmospheric Chemistry

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering, Dale J. Allen, Heidi Huntrieser   +2 more
wiley   +1 more source

Effect of temperature on inversion concentration of NO2 differential absorption lidar and optimized algorithm

Journal of Quantitative Spectroscopy and Radiative Transfer, 2021
Qiuwu Liu, Ya-Feng Chen, Jie Yang, Huang Jian, Shunxing Hu   +4 more
semanticscholar   +1 more source

Wafer‐Scale Near‐Infrared Metalenses With High Performance and Low Cost

Nanophotonics, Volume 15, Issue 16, 26 August 2026.
Widespread adoption of metalenses is constrained by prohibitive cost of wafer‐level fabrication. This work achieves 8‐inch wafer‐level fabrication with high uniformity (feature deviation < 5%) and reliable performance by step‐and‐repeat nanoimprint lithography.
Wanjiao Zhang, Meng Wang, Yunxiao Cai, Qiu Wang, Yuan Wang, Lu Han   +5 more
wiley   +1 more source

Benchmarking Precompensated Current-Modulated Diode-Laser-Based Differential Absorption Lidar for CO₂ Gas Concentration Measurements at kHz Rate. [PDF]

Sensors (Basel)
Zanetti G, Rodrigo PJ, Engelbrecht Larsen H, Pedersen C.   +3 more
europepmc   +1 more source