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1. Above Threshold Ionization

   https://doi.org/10.6084/m9.figshare.21084841  

   Harris, Allison (December 2022, figshare)

   A fortran code for calculating the energy spectrum for above threshold ionization and tunneling ionization using the window operator method of Schafer PRA 42, 5794 and Schafer CPC 63, 427. This code uses input files from A. L. Harris doi:10.6084/m9.figshare.21084826 (2022) 

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2. Measurement of iodine species and sulfuric acid using bromide chemical ionization mass spectrometers

   https://doi.org/10.5194/amt-14-4187-2021  

   Wang, Mingyi; He, Xu-Cheng; Finkenzeller, Henning; Iyer, Siddharth; Chen, Dexian; Shen, Jiali; Simon, Mario; Hofbauer, Victoria; Kirkby, Jasper; Curtius, Joachim; et al (January 2021, Atmospheric Measurement Techniques)

   null (Ed.)

   Abstract. Iodine species are important in the marine atmosphere foroxidation and new-particle formation. Understanding iodine chemistry andiodine new-particle formation requires high time resolution, highsensitivity, and simultaneous measurements of many iodine species. Here, wedescribe the application of a bromide chemical ionization mass spectrometer(Br-CIMS) to this task. During the iodine oxidation experiments in theCosmics Leaving OUtdoor Droplets (CLOUD) chamber, we have measured gas-phaseiodine species and sulfuric acid using two Br-CIMS, one coupled to aMulti-scheme chemical IONization inlet (Br-MION-CIMS) and the other to aFilter Inlet for Gasses and AEROsols inlet (Br-FIGAERO-CIMS). From offlinecalibrations and intercomparisons with other instruments, we havequantified the sensitivities of the Br-MION-CIMS to HOI, I2, andH2SO4 and obtained detection limits of 5.8 × 106,3.8 × 105, and 2.0 × 105 molec. cm−3,respectively, for a 2 min integration time. From binding energycalculations, we estimate the detection limit for HIO3 to be1.2 × 105 molec. cm−3, based on an assumption of maximumsensitivity. Detection limits in the Br-FIGAERO-CIMS are around 1 order ofmagnitude higher than those in the Br-MION-CIMS; for example, the detectionlimits for HOI and HIO3 are 3.3 × 107 and 5.1 × 106 molec. cm−3, respectively. Our comparisons of the performanceof the MION inlet and the FIGAERO inlet show that bromide chemicalionization mass spectrometers using either atmospheric pressure or reducedpressure interfaces are well-matched to measuring iodine species andsulfuric acid in marine environments. 

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3. Two- and three-body fragmentation of multiply charged tribromomethane by ultrafast laser pulses

   https://doi.org/10.1039/d2cp03089f  

   Bhattacharyya, Surjendu; Borne, Kurtis; Ziaee, Farzaneh; Pathak, Shashank; Wang, Enliang; Venkatachalam, Anbu Selvam; Marshall, Nathan; Carnes, Kevin D.; Fehrenbach, Charles W.; Severt, Travis; et al (November 2022, Physical Chemistry Chemical Physics)

   We investigate the two- and three-body fragmentation of tribromomethane (bromoform, CHBr 3 ) resulting from multiple ionization by 28-femtosecond near-infrared laser pulses with a peak intensity of 6 × 10 14 W cm −2 . The analysis focuses on channels consisting exclusively of ionic fragments, which are measured by coincidence momentum imaging. The dominant two-body fragmentation channel is found to be Br + + CHBr 2 + . Weaker HBr + + CBr 2 + , CHBr + + Br 2 + , CHBr 2+ + Br 2 + , and Br + + CHBr 2 2+ channels, some of which require bond rearrangement prior to or during the fragmentation, are also observed. The dominant three-body fragmentation channel is found to be Br + + Br + + CHBr + . This channel includes both concerted and sequential fragmentation pathways, which we identify using the native frames analysis method. We compare the measured kinetic energy release and momentum correlations with the results of classical Coulomb explosion simulations and discuss the possible isomerization of CHBr 3 to BrCHBr–Br (iso-CHBr 3 ) prior to the fragmentation. 

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4. COAWST model simulations of warm and cool nearshore rip-current plumes

   https://doi.org/10.5281/zenodo.4272080  

   Moulton, Melissa (January 2020, Zenodo)

   This archive contains COAWST model input, grids and initial conditions, and output used to produce the results in a submitted manuscript. The files are:</p> model_input.zip: input files for simulations presented in this paper   ocean_rip_current.in: ROMS ocean model input file   swan_rip_current.in: SWAN wave model input file (example with Hs=1m)   coupling_rip_current.in: model coupling file   rip_current.h: model header file    model_grids_forcing.zip: bathymetry and initial condition files      hbeach_grid_isbathy_2m.nc: ROMS bathymetry input file      hbeach_grid_isbathy_2m.bot: SWAN bathymetry input file      hbeach_grid_isbathy_2m.grd: SWAN grid input file      hbeach_init_isbathy_14_18_17.nc: Initial temperature, cool surf zone dT=-1C case      hbeach_init_isbathy_14_18_19.nc: Initial temperature, warm surf zone dT=+1C case      hbeach_init_isbathy_14_18_16.nc: Initial temperature, cool surf zone dT=-2C case      hbeach_init_isbathy_14_18_20.nc: Initial temperature, warm surf zone dT=+2C case      hbeach_init_isbathy_14_18_17p5.nc: Initial temperature, cool surf zone dT=-0.5C case      hbeach_init_isbathy_14_18_18p5.nc: Initial temperature, warm surf zone dT=+0.5C case</p> model_output files: model output used to produce the figures      netcdf files, zipped      variables included:           x_rho (cross-shore coordinate, m)           y_rho (alongshore coordinate, m)           z_rho (vertical coordinate, m)           ocean_time (time since initialization, s, output every 5 mins)           h (bathymetry, m)           temp (temperature, Celsius)           dye_02 (surfzone-released dye)           Hwave (wave height, m)           Dissip_break (wave dissipation W/m2)            ubar (cross-shore depth-average velocity, m/s, interpolated to rho-points)      Case_141817.nc: cool surf zone dT=-1C Hs=1m      Case_141819.nc: warm surf zone dT=+1C Hs=1m      Case_141816.nc: cool surf zone dT=-2C Hs=1m      Case_141820.nc: warm surf zone dT=-2C Hs=1m      Case_141817p5.nc: cool surf zone dT=-0.5C Hs=1m      Case_141818p5.nc: warm surf zone dT=+0.5C Hs=1m      Case_141817_Hp5.nc: cool surf zone dT=-1C Hs=0.5m      Case_141819_Hp5.nc: warm surf zone dT=+1C Hs=0.5m      Case_141817_Hp75.nc: cool surf zone dT=-1C Hs=0.75m      Case_141819_Hp75.nc: warm surf zone dT=+1C Hs=0.75m</p> COAWST is an open source code and can be download at https://coawstmodel-trac.sourcerepo.com/coawstmodel_COAWST/. Descriptions of the input and output files can be found in the manual distributed with the model code and in the glossary at the end of the ocean.in file.</p> Corresponding author: Melissa Moulton, mmoulton@uw.edu</p> 

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5. 20th Century Cooling of the Deep Ocean Contributed to Delayed Acceleration of Earth’s Energy Imbalance

   https://doi.org/10.6084/m9.figshare.12959489.v6  

   Bagnell, Aaron; DeVries, Tim (January 2021, figshare)

   Datasets and code for global ocean heat analysis using an autoregressive artificial neural network (ARANN).Cooling of the global ocean below 2000 m counteracted some of the warming of the shallow ocean over much of the late 20th century. This trend has shifted to warming, leading the deep ocean to absorb a meaningful fraction of total ocean heat during the 21st century. 

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