An investigation into the chemistry of HONO in the marine boundary layer at Tudor Hill Marine Atmospheric Observatory in Bermuda by Y. Zhu, Y. Wang, Y. Wang, X. Zhou, X. Zhou, Y. F. Elshorbany, C. Ye, M. Hayden, A. J. Peters

“…<span class="inline-formula">HONO</span> mixing ratios exhibited distinct diurnal cycles that peaked around solar noon and were lowest before sunrise, indicating the importance of photochemical processes for <span class="inline-formula">HONO</span> formation. …”
Get full text

Multi-year monitoring of atmospheric total gaseous mercury at a remote high-altitude site (Nam Co, 4730&thinsp;m&thinsp;a.s.l.) in the inland Tibetan Plateau region by X. Yin, X. Yin, X. Yin, X. Yin, S. Kang, S. Kang, B. de Foy, Y. Ma, Y. Ma, Y. Tong, W. Zhang, X. Wang, G. Zhang, Q. Zhang, Q. Zhang

“…Diurnal variations of TGM exhibited uniform patterns in different seasons: the daily maximum was reached in the morning (around 2–4&thinsp;h after sunrise), followed by a decrease until sunset and a subsequent buildup at night, especially in the summer and the spring. …”
Get full text

An MCM modeling study of nitryl chloride (ClNO₂) impacts on oxidation, ozone production and nitrogen oxide partitioning in polluted continental outflow by T. P. Riedel, G. M. Wolfe, K. T. Danas, J. B. Gilman, W. C. Kuster, D. M. Bon, A. Vlasenko, S.-M. Li, E. J. Williams, B. M. Lerner, P. R. Veres, J. M. Roberts, J. S. Holloway, B. Lefer, S. S. Brown, J. A. Thornton

“…ClNO₂ is photolyzed during the morning hours after sunrise to liberate highly reactive chlorine atoms (Cl·). …”
Get full text

Effects of Day/Night Factor on the Detection Performance of FY4A Lightning Mapping Imager in Hainan, China by Hao Sun, Jing Yang, Qilin Zhang, Lin Song, Haiyang Gao, Xiaoqin Jing, Guo Lin, Kang Yang

“…The <i>DE_LMI</i> rapidly dropped within about four hours after sunrise while it increased before sunset. For the storms that formed at night and lasted for an entire day, the <i>DE_LMI</i> remained relatively low during the daytime, even as the thunderstorms intensified. …”
Get full text

Atmospheric oxidation in the presence of clouds during the Deep Convective Clouds and Chemistry (DC3) study by W. H. Brune, X. Ren, X. Ren, L. Zhang, J. Mao, D. O. Miller, B. E. Anderson, D. R. Blake, R. C. Cohen, G. S. Diskin, S. R. Hall, T. F. Hanisco, L. G. Huey, B. A. Nault, B. A. Nault, J. Peischl, J. Peischl, I. Pollack, I. Pollack, I. Pollack, T. B. Ryerson, T. Shingler, T. Shingler, A. Sorooshian, A. Sorooshian, K. Ullmann, A. Wisthaler, P. J. Wooldridge

“…This agreement is generally independent of the altitude, ozone photolysis rate, nitric oxide and ozone abundances, modeled OH reactivity, and aerosol and ice surface area. For a sunrise to midday flight downwind of a nighttime mesoscale convective system, the observed ozone increase is consistent with the calculated ozone production rate. …”
Get full text

ДЕТЕРМИНАНТЫ ВЫСОКОЙ И НИЗКОЙ ОСТАТОЧНОЙ РЕАКТИВНОСТИ ТРОМБОЦИТОВ ПРИ ПРИЕМЕ КЛОПИДОГРЕЛА В 1-2 СУТКИ ИНФАРКТА МИОКАРДА... by Т. П. Пронько, В. А. Снежицкий, А. В. Копыцкий

“…Исследование уровня растворимого лиганда CD40 (sСD40L) и sP-селектина выполнено у 140 пациентов, фактора фон Виллебранда (ФВ) и эндотелина-1 – у 150 чел. на иммуноферментном анализаторе Sunrise TECAN, Австрия. Все исследования проводились при поступлении пациентов в стационар в первые-вторые сутки ИМ (не ранее чем через 12 часов от назначения нагрузочной дозы клопидогрела). …”
Get full text

Modular Multiplatform Compatible Air Measurement System (MoMuCAMS): a new modular platform for boundary layer aerosol and trace gas vertical measurements in extreme environments by R. Pohorsky, A. Baccarini, A. Baccarini, J. Tolu, J. Tolu, L. H. E. Winkel, L. H. E. Winkel, J. Schmale

“…Results from the first two case studies illustrate the breakup of a surface-based inversion layer after sunrise and the dilution of a 50–70 m thick surface layer. …”
Get full text

[Transiting species, phenologies and their trends] by Paolo Pedrini, Alessandro Franzoi, Paula Lorenzo Sanchez, Fernando Spina, Simone Tenan, Francesca Rossi, Marco Bandini, Giampiero Calvi, Franco Colnago, Giuditta Corno, Stefano Noselli, Maffeo Schiavi, Severino Vitulano, Daniele Accantelli, Fulvio Barbarino, Roberto Bertoli, Enrico Borgo, Redi Dendena, Sergio Fasano, Andrea Favaretto, Andrea Galimberti, Rocco Leo, Mariella Nicastro, Marco Pavia, Iacun Prugger, Domenico Rosselli, Alberto Tamietti, Enrico Viganò, Lorenzo Serra

“…Species covered refer to those with more than 100 birds ringed within the first eight hours after sunrise (excluding local retraps). Species accounts contain detailed data from datasets from all stations participating in the Alps Project (1997-2017)].   …”
Get full text

A Comparison of ASCE and FAO56 Reference Evapotranspiration at Different Subdaily Timescales: a Numerical Study by Farzin Parchami-Araghi, Seyed Majid Mirlatifi, Shoja Ghorbani Dashtaki, Adnan Sadeghi-Lari

“…Daily/sub-daily net long wave radiation (Rnl) was estimated through 6 different approaches, including using two different criteria for identifying the daytime/nighttime periods : 1) the standard criteria implemented in both ASCE-PM and FAO56-PM models and 2) criterion of actual time of sunset and sunrise in combination with 1) estimation of clear-sky radiation (Rso) based on the standard approach implemented in both ASCE-PM and FAO56-PM models (1st and 2nd Rnl estimation approaches, respectively), 2) integral of the Rso estimates derived via a physically based solar radiation model developed by Yang et al. (25), YNG model, for one-second time-steps (3rd and 4th Rnl estimation approaches, respectively), and 3) integral of the calculated Rnl based on Rso estimates derived via YNG model for one-second time-steps (5th and 6th Rnl estimation approaches, respectively). …”
Get full text

Captive Aerosol Growth and Evolution (CAGE) chamber system to investigate particle growth due to secondary aerosol formation by C. L. Sirmollo, C. L. Sirmollo, D. R. Collins, D. R. Collins, J. M. McCormick, C. F. Milan, M. H. Erickson, J. H. Flynn, R. J. Sheesley, S. Usenko, H. W. Wallace, A. A. T. Bui, R. J. Griffin, M. Tezak, S. M. Kinahan, S. M. Kinahan, J. L. Santarpia

“…A bimodal diel particle growth rate pattern was observed, with maxima of about 6 nm h<span class="inline-formula">⁻¹</span> in the late morning and early evening and minima of less than 1 nm h<span class="inline-formula">⁻¹</span> shortly before sunrise and sunset. A pattern change was observed for hourly averaged growth rates between late summer and early fall.…”
Get full text

Speciated atmospheric mercury on haze and non-haze days in an inland city in China by Q. Hong, Q. Hong, Z. Xie, Z. Xie, Z. Xie, C. Liu, C. Liu, C. Liu, F. Wang, P. Xie, P. Xie, H. Kang, J. Xu, J. Wang, F. Wu, P. He, F. Mou, S. Fan, Y. Dong, H. Zhan, X. Yu, X. Chi, J. Liu

“…On both non-haze and haze days, GOM concentrations remained low at night, but increased rapidly just before sunrise, which could be due to diurnal variation in air exchange between the boundary layer and free troposphere. …”
Get full text

Vertical observations of the atmospheric boundary layer structure over Beijing urban area during air pollution episodes by L. Wang, L. Wang, J. Liu, J. Liu, Z. Gao, Y. Li, M. Huang, S. Fan, X. Zhang, Y. Yang, Y. Yang, S. Miao, H. Zou, Y. Sun, Y. Chen, T. Yang

“…Based on analysis of the surface energy balance at the 140&thinsp;m level, we found that the sensible heat flux was remarkably diminished during daytime on polluted days and even negative after sunrise (about 07:20&thinsp;LST) till 14:00&thinsp;LST on 4 December. …”
Get full text

Photolysis imprint in the nitrate stable isotope signal in snow and atmosphere of East Antarctica and implications for reactive nitrogen cycling by J. M. F. Martins, J. Erbland, S. Morin, J. Savarino, M. M. Frey

“…The &amp;Delta;&lt;sup&gt;17&lt;/sup&gt;O signature confirms previous coastal measurements that the peak of atmospheric NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt; in spring is of stratospheric origin. After sunrise photolysis drives then redistribution of NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt; from the snowpack photic zone to the atmosphere and a snow surface skin layer, thereby concentrating NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt; at the surface. …”
Get full text

Compositional variation and zoning of epidote supergroup minerals in the Campi Flegrei geothermal field, Naples, Italy by H. E. Belkin, B. De Vivo, B. De Vivo

Get full text

The new sun-sky-lunar Cimel CE318-T multiband photometer &ndash; a comprehensive performance evaluation by Á. Barreto, E. Cuevas, M.-J. Granados-Muñoz, L. Alados-Arboledas, P. M. Romero, J. Gröbner, N. Kouremeti, A. F. Almansa, T. Stone, C. Toledano, R. Román, M. Sorokin, B. Holben, M. Canini, M. Yela

“…Results showed low discrepancies with the star photometer at 870 and 500 nm channels ( ≤  0.013) and differences with AERONET daytime data (1 h after and before sunset and sunrise) in agreement with the estimated <i>u</i>^N_AOD values at all illumination conditions in the case of channels within the visible spectral range, and only for high moon's illumination conditions in the case of near-infrared channels.…”
Get full text

Residual layer ozone, mixing, and the nocturnal jet in California's San Joaquin Valley by D. J. Caputi, I. Faloona, J. Trousdell, J. Smoot, N. Falk, S. Conley

“…By formulating nocturnal scalar budgets based on pairs of consecutive flights (the first around midnight and the second just after sunrise the following day), we estimate the rate of vertical mixing between the RL and the NBL and thereby infer eddy diffusion coefficients in the top half of the NBL. …”
Get full text

Aerosol delivery of synthetic DNA containing CpG motifs in broiler chicks at hatch under field conditions using a commercial-scale prototype nebulizer provided protection against l... by K.B. Goonewardene, S. Popowich, S. Gebhardt, T. Gunawardana, A. Gupta, S. Kurukulasuriya, R. Karunarathna, M. Liu, B. Chow-Lockerbie, L. Ayalew, K.A. Ahmed, Houman Kamali, S.K. Tikoo, M. Foldvari, P. Willson, J. Boire, K. Roberts, N. Ambrose, C. Simonson, S. Gomis

Get full text

A multiproxy database of western North American Holocene paleoclimate records by C. C. Routson, D. S. Kaufman, N. P. McKay, M. P. Erb, S. H. Arcusa, K. J. Brown, K. J. Brown, M. E. Kirby, J. P. Marsicek, R. S. Anderson, G. Jiménez-Moreno, J. R. Rodysill, M. S. Lachniet, S. C. Fritz, J. R. Bennett, M. F. Goman, S. E. Metcalfe, J. M. Galloway, G. Schoups, D. B. Wahl, J. L. Morris, F. Staines-Urías, A. Dawson, B. N. Shuman, D. G. Gavin, J. S. Munroe, B. F. Cumming

Get full text

Cold-induced suspension and resetting of Ca2+ and transcriptional rhythms in the suprachiasmatic nucleus neurons by Ryosuke Enoki, Naohiro Kon, Kimiko Shimizu, Kenta Kobayashi, Sota Hiro, Ching-Pu Chang, Tatsuto Nakane, Hirokazu Ishii, Joe Sakamoto, Yoshifumi Yamaguchi, Tomomi Nemoto

Get full text

In situ secondary organic aerosol formation from ambient pine forest air using an oxidation flow reactor by Palm, Brett B., Campuzano-Jost, Pedro, Ortega, Amber M., Day, Douglas A., Kaser, Lisa, Jud, Werner, Karl, Thomas, Hansel, Armin, Peng, Zhe, Brune, William H., Jimenez, Jose L., Hunter, James, Cross, Eben Spencer, Kroll, Jesse

“…SOA formation followed a similar diurnal pattern to monoterpenes, sesquiterpenes, and toluene+p-cymene concentrations, including a substantial increase just after sunrise at 07:00 local time. Higher photochemical aging (> 10 eq. days) led to a decrease in new SOA formation and a loss of preexisting OA due to heterogeneous oxidation followed by fragmentation and volatilization. …”
Get full text
Get full text
Get full text