Kimberly Samuels-Crow

Kimberly Samuels-Crow
Northern Arizona University | NAU · School of Informatics, Computing, and Cyber Systems

PhD

About

35
Publications
2,481
Reads
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278
Citations
Citations since 2016
18 Research Items
209 Citations
20162017201820192020202120220102030
20162017201820192020202120220102030
20162017201820192020202120220102030
20162017201820192020202120220102030
Additional affiliations
October 2018 - present
Northern Arizona University
Position
  • Professor
January 2016 - October 2018
Northern Arizona University
Position
  • PostDoc Position
January 2015 - January 2016
Northern Arizona University
Position
  • Research Associate

Publications

Publications (35)
Preprint
Full-text available
Over the past two decades, advances in molecular biology have greatly expanded our understanding of microbiomes – the diverse assemblages of microorganisms that inhabit the human body as well as the world around us, and applications in microbiome science have become an active area of research. Differences in the diversity (i.e., richness) and compo...
Article
Full-text available
Water and CO2 flux responses (e.g., evapotranspiration [ET] and net ecosystem exchange [NEE]) to environmental conditions can provide insights into how climate change will affect the terrestrial water and carbon budgets, especially in sensitive semiarid ecosystems. Here, we evaluated sensitivity of daily ET and NEE to current and antecedent (past)...
Article
Inferences about subsurface CO2 fluxes often rely on surface soil respiration (Rsoil) estimates because directly measuring subsurface microbial and root respiration (collectively, CO2 production, STotal) is difficult. To evaluate how well Rsoil serves as a proxy for STotal, we applied the nonsteady state DEconvolution of Temporally varying Ecosyste...
Article
Water vapor measured continuously by cavity ring-down spectroscopy from July 2012 to March 2013 on the hyperarid Chajnantor Plateau, northern Chile (elevation = 5080 m, pressure ≈ 550 hPa), has a mean deuterium excess (d-excess = δD - 8*δ18O) of 46‰ + 5‰ and frequently exceeds 100‰ at low water vapor mixing ratios (q < 500 ppmv). These measurements...
Article
We take advantage of the spatial coverage provided by the Tropospheric Emission Spectrometer on-board the Aura satellite to evaluate processes that control seasonal variations in atmospheric water vapor HDO/H2O values (δDvapor) over the tropical Andes. δDvapor is lower in austral summer (DJF) than austral winter (JJA), which is broadly consistent w...
Article
Trees are long-lived organisms that integrate climate conditions across years or decades to produce secondary growth. This integration process is sometimes referred to as ‘climatic memory.’ While widely perceived, the physiological processes underlying this temporal integration, such as the storage and remobilization of non-structural carbohydrates...
Article
In trees, large uncertainties remain in how non-structural carbohydrates (NSCs) respond to variation in water availability in natural, intact ecosystems. Variation in NSC pools reflects temporal fluctuations in supply and demand, as well as physiological coordination across tree organs in ways that differ across species and NSC fractions (e.g., sol...
Article
Full-text available
How do antecedent (past) conditions influence land‐carbon dynamics after those conditions no longer persist? In particular, quantifying such memory effects associated with the influence of past environmental (exogenous) and biological (endogenous) conditions is crucial for understanding and predicting the carbon cycle. Here we show, using data from...
Article
Full-text available
West Nile Virus (WNV) has been detected annually in Maricopa County, Arizona, since 2003. With this in mind, we sought to determine if contemporary strains are endemic to the county or are annually imported. As part of this effort, we developed a new protocol for tiled amplicon sequencing of WNV to efficiently attain greater than 99% coverage of 14...
Data
Sequence metadata in phylogenetic order. The Genbank accession number, the host or vector mosquito that the strain was isolated from, the state of isolation, isolation date to the nearest hundredths of a year, major WNV clade the strain belongs to, clade-defining amino acid substitutions, and notable convergent substitutions are included. We adopte...
Data
Tiled amplicon primer pairs. Primer pairs, the amplification pools to which they belong, primer lengths, melting temperature (Tm), GC content, and start and end position in relationship to the NY99 strain are included. This information was directly output from Primal Scheme [7]. (XLSX)
Data
Phylogenetically ordered amino acid alignment of the E protein. A valine at position 159 indicates the NY99 lineage, whereas an alanine indicates NA/WN02 or SW/WN03 lineages. (FAS)
Data
Phylogenetically ordered amino acid alignment of the NS4 protein. A threonine at position 85 indicates the SW/WN03 lineage. (FAS)
Data
Phylogenetically ordered amino acid alignment of the NS5 protein. A change from lysine to arginine at position 314 has occurred in several strains isolated in the southwestern United States, including all Arizona strains. (FAS)
Data
Model comparison results in duplicate from the generalized stepping stone sampling analyses. (XLSX)
Data
Phylogenetically ordered nucleotide alignment of the WNV coding region. (FAS)
Article
Full-text available
The flux of CO2 from the soil to the atmosphere (soil respiration, Rsoil) is a major component of the global carbon (C) cycle. Methods to measure and model Rsoil, or partition it into different components, often rely on the assumption that soil CO2 concentrations and fluxes are in steady state, implying that Rsoil is equal to the rate at which CO2...
Article
Full-text available
The flux of CO2 from the soil to the atmosphere (soil respiration, Rsoil) is a major component of the global carbon cycle. Methods to measure and model Rsoil, or partition it into different components, often rely on the assumption that soil CO2 concentrations and fluxes are in steady state, implying that Rsoil is equal to the rate at which CO2 is p...
Article
Austral summer transport of water vapor to the southern South American Altiplano is investigated using in situ measurements of water vapor isotopic composition collected from 1 November 2012 to 10 February 2013 on the Chajnantor Plateau in the Chilean Andes. Onset of the wet season in December was associated with an increase in mixing ratios from a...
Article
Measurements of water vapor isotopic composition in stratospheric air intrusions can be used to constrain the dilution of the intrusion as it mixes into the middle troposphere. The intrusion studied here occurred on 17-18 August 2012 with measurements obtained at an altitude of 5 km in the Chilean Andes at the Atacama Large Millimeter Array (ALMA)...
Article
Full-text available
We take advantage of the spatial coverage provided by the Tropospheric Emission Spectrometer on-board the Aura satellite to evaluate processes that control seasonal variations in atmospheric water vapor HDO/H2O values (δDvapor) over the tropical Andes. δDvapor is lower in austral summer (DJF) than austral winter (JJA), which is broadly consistent w...
Article
Supergene and hypogene jarosite have been dated successfully, but accurate dating of weathering-derived jarosite and its application to landscape-evolution studies has been limited because of difficulties in obtaining high-purity mineral separates. Hydrofluoric acid (HF) can remove potassium-bearing silicates from supergene samples, but its effects...
Article
In-situ measurements of modern meteorological conditions at Quelccaya Ice Cap's summit, including the isotopic composition of atmospheric water vapor, may aid in the interpretation of the 1500-year, annually resolved ice-core record available from the site (Thompson et al., 2003). Betweeen July 7 and July 9, 2011, we collected 11 samples of atmosph...
Article
Simultaneous, real-time measurements of atmospheric water vapor mixing ratio and isotopic composition (δD and δ18O) were obtained using cavity ringdown spectroscopy on the arid Chajnantor Plateau in the subtropical Chilean Andes (elevation 5080 m or 550 hPa; latitude 23S) during July and August 2010. The measurements show surface water vapor mixing...
Article
Subtropical deserts form in response to the interaction of large-scale processes, including atmospheric circulation and oceanic currents, with local features like topography. The degree to which each of these factors controls desert formation and the anticipated impacts of variations in each as climate changes, however, are poorly understood. Stabl...
Article
Several recent studies have pointed out the importance of large-scale mixing in setting the humidity of the subtropics, but the balance between isentropic mixing of dry air from the extratropics and cross-isentropic vertical mixing from the boundary layer remains enigmatic, and the way that such balances may change as the climate warms is unknown....
Conference Paper
Boreholes drilled for groundwater characterization at Los Alamos National Laboratory (LANL) encountered four petrographically and chemically distinct dacite lavas beneath the Pajarito Plateau. Coarsely porphyritic lavas with 17-38% phenocrysts (42-74% plagioclase, up to 28% pyroxene, 15-43% amphibole) and 64.9-66.3% SiO2 occur in boreholes in the s...
Article
Full-text available
Mantle xenoliths from the Pliocene Rio Puerco volcanic fi eld, New Mexico, record chemical modifi cation of the subcontinental lithosphere in the transition zone between the Colorado Plateau and the Rio Grande rift. The Rio Puerco necks brought a wide variety of mantle xenoliths to the surface, including abundant spinel ± garnet pyroxenites. Gar- n...
Conference Paper
Pliocene basaltic necks along the western margin of the Rio Grande rift (Rio Puerco volcanic field, NM) brought lherzolite, carbonate-bearing low-Cr websterite, and Cr-diopside pyroxenite (Cr-PX) xenoliths to the surface. Websterites formed from melt-rock interaction between lherzolite and mixed silicate-carbonatite melt (Porreca et al., in review)...

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