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Dillon, JC.  Forthcoming.  Getting Started With Scripps Scholars.
Georgakakos, KP, Guetter AK, Sperfslage JA.  Submitted.  Estimation of Flash Flood Potential for Large Areas. Destructive water : water-caused natural disasters, their abatement and control. ( H LG, Ed.).:87-93., Wallingford: International Association of Hydrological Sciences Abstract
Palóczy, A, Gille ST, McClean JL.  Submitted.  Oceanic heat delivery to the Antarctic continental shelf: Large-scale, low-frequency variability. Journal of Geophysical Research-Oceans.
Wagner, TJW, Stern AA, Dell RW, Eisenman I.  Submitted.  On the representation of capsizing in iceberg models.
Wagner, TJW, Eisenman I, Dell RW, Keeling RF, Severinghaus JP.  Submitted.  Wave inhibition by sea ice enables trans-Atlantic ice rafting of debris during Heinrich Events.
Höllt, T, Magdy A, Chen G, Gopalakrishnan G, Hoteit I, Hansen CD, Hadwiger M.  Submitted.  Visual Analysis of Uncertainties in Ocean Forecasts for Planning and Operation of Off-Shore Structures. Proceedings of IEEE Pacic Visualization 2013. 1:185-192. Abstract
In Press
Wagner, TJW, Dell R, Eisenman I.  In Press.  An Analytical Model Of Iceberg Drift. Journal of Physical Oceanography.
De Groot-Hedlin, CD, Hedlin MA.  In Press.  Detection of Infrasound Signals and Sources using a Dense Seismic Network. Global Continuous Infrasound Monitoring for Atmospheric Studies. : Springer Geosciences
De Groot-Hedlin, CD, Hedlin MAH.  In Press.  Detection of Infrasound Signals and Sources using a Dense Seismic Network. Global Continuous Infrasound Monitoring for Atmospheric Studies.
Plominsky, AM, Henriquez CA, Delherbe N, Podell S, Ramirez S, Ugalde JA, Santibanez JF, Engh GVDJ, Hanselmann K, Ulloa O, De la Iglesia R, Trefault N, Allen EE.  In Press.  Distinctive archaeal composition of an artisanal crystallizer pond and functional insights into salt-saturated hypersaline environment adaptation. Frontiers in Microbiology.   10.3389/fmicb.2018.01800   Abstract

Hypersaline environments represent some of the most challenging settings for life on Earth. Extremely halophilic microorganisms have been selected to colonize and thrive in these extreme environments by virtue of a broad spectrum of adaptations to counter high salinity and osmotic stress. Although there is substantial data on microbial taxonomic diversity in these challenging ecosystems and their primary osmoadaptation mechanisms, less is known about how hypersaline environments shape the genomes of microbial inhabitants at the functional level. In this study, we analyzed the microbial communities in five ponds along the discontinuous salinity gradient from brackish to salt-saturated environments and sequenced the metagenome of the salt (halite) precipitation pond in the artisanal Cáhuil Solar Saltern system. We combined field measurements with spectrophotometric pigment analysis and flow cytometry to characterize the microbial ecology of the pond ecosystems, including primary producers and applied metagenomic sequencing for analysis of archaeal and bacterial taxonomic and functional diversity of the salt crystallizer harvest pond. Comparative metagenomic analysis of the Cáhuil salt crystallizer pond against microbial communities from other salt-saturated aquatic environments revealed a dominance of the archaeal genus Halorubrum and showed an unexpectedly low abundance of Haloquadratum in the Cáhuil system. Functional comparison of 26 hypersaline microbial metagenomes revealed a high proportion of sequences associated with nucleotide excision repair, helicases, replication and restriction-methylation systems in all of them. Moreover, we found distinctive functional signatures between the microbial communities from salt-saturated (>30% [w/v] total salinity) compared to sub-saturated hypersaline environments mainly due to a higher representation of sequences related to replication, recombination and DNA repair in the former. The current study expands our understanding of the diversity and distribution of halophilic microbial populations inhabiting salt-saturated habitats and the functional attributes that sustain them.

Bohra, T, Benmarhnia T, McKinnon B, Kaufman JS.  In Press.  ecomposing educational inequalities in child mortality: a temporal trend analysis of access to Water and Sanitation in Peru. American Journal of Tropical Medicine and Hygiene.
Ponganis, PJ, McDonald BI, Tift MS, Gonzalez SC, DaValle B, Gliniecki RA, Stehman CC, Hauff N, Ruddick B, Howard R.  In Press.  Effects of Inhalational Anesthesia on Blood Gases and pH in California Sea Lions. Marine Mammal Science.
Tift, MS, Huckstadt LA, McDonald BI, Thorson PH, Ponganis PJ.  In Press.  Flipper stroke rate and venous oxygen levels in free-ranging California sea lions. The Journal of Experimental Biology.
Benmarhnia, T, Dionna PA, Tchouaket E, Fansi A, Brousselle A.  In Press.  How effective does a Healthy Lifestyle Habits Promotion Strategy need to be to make it cost-neutral. IJPH.
Deng, Z, Moynier F, van Zuilen K, Sossi P, Pringle EA, Chaussidon M.  In Press.  Lack of resolvable titanium stable isotopic variations in bulk chondrites. Geochimica et Cosmochimica Acta.   10.1016/j.gca.2018.06.016   Abstract

Titanium and calcium are both refractory lithophile elements. Significant stable isotopic variations on Ti and Ca have been documented within calcium, aluminum-rich inclusions (CAIs) in carbonaceous chondrites. To trace the condensation history of Ti in the solar nebula, we conducted a high-precision double-spike Ti stable isotopic study on a large set of chondrites. The studied chondrites have a homogeneous bulk Ti stable isotopic composition (δ49/47TiIPGP-Ti = −0.069 ± 0.018‰, 2se, n = 22, i.e., the per mil deviation of the 49Ti/47Ti ratios relative to the IPGP-Ti reference material). The homogeneity across eleven chondrite groups implies that chondrites have acquired, through the condensation sequence at equilibrium, the average stable isotopic composition of Ti in the refractory solids that condensed early in the solar nebula. In contrast, the light Ca stable isotopic compositions of bulk chondrites can be attributed to either the presence of CAIs (CV-, CM- and CO-type) or parent-body aqueous alteration (CR- and CI-type).

Benmarhnia, T, Huang J, Jones C.  In Press.  Lost in Translation: Considering the representation of uncertainty in the presentation of empirical findings in WHO policy statements. International Journal of Health Policy and Management.
Minich, JJ, Zhu Q, Xu ZZ, Amir A, Ngochera M, Simwaka M, Allen EE, Zidana H, Knight R.  In Press.  Microbial effects of livestock manure fertilization on freshwater aquaculture ponds rearing tilapia (Oreochromis shiranus) and North African catfish (Clarias gariepinus). MicrobiologyOpen. Abstract

The majority of seafood is produced from farming, with most finfish coming from freshwater ponds. Across continents, aquaculture is growing fastest in Africa at 11.7 % annual growth, thus improving production for fish farmers while ensuring seafood safety for human consumption is needed. To understand the probiotic or prebiotic effects of fertilizing freshwater ponds with livestock manure, we grew tilapia and catfish together for four weeks under seven manure treatments including layer chicken, broiler chicken, guinea fowl, quail, pig, cow, and standard commercial feed only and evaluated the microbial communities of the manure, water column, tilapia and catfish feces using 16S and 18S rRNA marker genes along with whole genome sequencing. Catfish growth, but not tilapia, was positively associated with microbial activity (P=0.0006, R2=0.4887) and greatest in ponds fertilized with quail manure (ANOVA, P<0.05). Tilapia growth was highest in the broiler manure but not significant while tilapia fecal microbial richness (but not catfish) was positively correlated with microbial activity (P=0.0309, R2=0.2458). Animal manure was unique and influenced the bacterial microbiome in pond water, tilapia gut, and catfish gut and eukaryotic microbiome in pond water and catfish guts (PERMANOVA, P = 0.001). On average, 18.5%, 18.6%, and 45.3% of manure bacteria sOTUs, (sub-operational taxonomic units), were present in the water column, catfish feces, and tilapia feces which comprised 3.7%, 12.8%, and 10.9% of the total microbial richness of the communities, respectively. Antibiotic resistance genes were highest in the manure and water samples followed by tilapia feces and then lowest in catfish feces (P<0.0001). In this study we demonstrate how the bacterial and eukaryotic microbial composition of fish ponds are influenced by livestock specific manure inputs and that the gut microbiome of O. shiranus is more sensitive and responsive than C. gariepinus to these changes. Since only 13 % of the core manure bacteria could be detected in the core pond water and fish gut communities we conclude that animal manure used as fertilizer induces a primarily prebiotic effect on the pond ecosystem rather than a direct probiotic effect on fish. We identify how the tilapia gut microbiome is more influenced by environmental microbes while African catfish growth benefits more from manure fertilization.

Lavers, DA, Villarini G.  In Press.  The relationship between daily European precipitation and measures of atmospheric water vapour transport. International Journal of Climatology.
Wang, H, McClean JL, Talley LD, Yeager S.  In Press.  Seasonal cycle and annual reversal of the Somali Current in an eddy-resolving global ocean model. Journal of Geophysical Research- Oceans.
Mahan, B, Moynier F, Siebert J, Gueguen B, Agranier A, Pringle EA, Bollard J, Connelly J, Bizzarro M.  In Press.  Volatile element evolution of chondrules through time. Proceedings of the National Academy of Science USA.   10.1073/pnas.1807263115   Abstract

Chondrites and their main components, chondrules, are our guides into the evolution of the Solar System. Investigating the history of chondrules, including their volatile element history and the prevailing conditions of their formation, has implications not only for the understanding of chondrule formation and evolution but for that of larger bodies such as the terrestrial planets. Here we have determined the bulk chemical composition—rare earth, refractory, main group, and volatile element contents—of a suite of chondrules previously dated using the Pb−Pb system. The volatile element contents of chondrules increase with time from ∼1 My after Solar System formation, likely the result of mixing with a volatile-enriched component during chondrule recycling. Variations in the Mn/Na ratios signify changes in redox conditions over time, suggestive of decoupled oxygen and volatile element fugacities, and indicating a decrease in oxygen fugacity and a relative increase in the fugacities of in-fluxing volatiles with time. Within the context of terrestrial planet formation via pebble accretion, these observations corroborate the early formation of Mars under relatively oxidizing conditions and the protracted growth of Earth under more reducing conditions, and further suggest that water and volatile elements in the inner Solar System may not have arrived pairwise.

Benmarhnia, T, Kaufman JS.  In Press.  When evidence of heat-related vulnerability depends on the contrast measure. International Journal of Biometeorology .
Farrell, WE, Berger J, Bidlot JR, Dzieciuch M, Munk W, Stephen R, Worcester P.  In Press.  Windsea behind a cold front and deep ocean acoustics. Journal of Physical Oceanography.
Paytan, A, Kastner M, Martin EE, Macdougall JD, Herbert T.  6454.  Marine barite as a monitor of seawater strontium isotope composition. Nature. 366:445-449.   10.1038/366445a0   AbstractWebsite

Sr isotope compositions are presented of marine barytes from cored Holocene sediments from the Pacific, Atlantic and Indian oceans. The microcrystals of baryte record the modern sea-water (super 87) Sr/ (super 86) Sr value, and the (super 87) Sr/ (super 86) Sr values of baryte from 25 sediment samples covering the past 35 m.y. fall within the range of published data for carbonates over this period. Marine baryte is shown to record reliably records of present and past variations in sea-water Sr isotope compositions.