Talks/Posters

under construction

114 Publications

2017

Hot spots and hot moments for redox, iron and carbon cycling in soils across Luquillo and Calhoun CZOs. Barcellos, D., and Thompson, A. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017 Cross-CZO

2017

Soil organic matter stabilization by Fe-C interactions in temperate and tropical soils: A cross-CZO comparison. Coward, E.K., Thompson, A., and Plante, A.F. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017 Cross-CZO

2017

AGU Chapman Conference on Extreme Climate Event Impacts on Aquatic Biogeochemical Cycles and Fluxes. Inamdar, A. McDowell W.H., Shanley J.B., Minor E., Park, J. (2017): https://sites.google.com/a/udel.edu/chapmanece/home

2017

Conference Program - AGU Chapman Conference on Extreme Climate Event Impacts on Aquatic Biogeochemical Cycles and Fluxes. Inamdar, S., McDowell W.H., Shanley J. B., Minor E., Park J. (2017): AGU Chapman Conference, San Juan, PR 2017 Cross-CZO National

2016

Soil iron reduction and carbon mineralization in reconstructed aggregates during redox fluctuations. Barcellos D, Silver W, Pett-Ridge J, Thompson A (2016): Goldschmidt - Geochemical Conference. Yokohama, Japan

2016

Soil organic matter stabilization by Fe-C interactions in temperate and tropical soils: A cross-CZO comparison. Coward, E.K., Thompson, A., Markewitz, D., Richter, D. deB., and Plante, A.F. (2016): Soil Science Society of America Annual Meeting, Phoenix, AZ, 6-9 November 2016 Cross-CZO

2016

Representation of diffusion controlled carbon stabilization in reactive transport models. Thompson, A., Druhan, J.L., Keiluweit, M., Wagai, R., Plante, A.F., Lawrence, C.R., Berhe, A.A., Sierra, C.A., Rasmussen, C., Marin-Spiotta, E., Blankinship, J.C., Schimel, J., Heckman, K.A., Crow, S.E., and Wieder, W.R. (2016): American Geophysical Union 2016 Fall Meeting, San Francisco, CA Cross-CZO

2015

Optimizing watershed flux estimates: the R package ‘loadflex’ . Appling A.P., Leon M.C., McDowell W.H. (2015): Society for Fresh Water Science

2015

Iron reduction and carbon dynamics during redox fluctuations in soil slurries from Luquillo CZO (Puerto Rico). Barcellos D, Silver W, Pett-Ridge J, Thompson A (2015): American Geophysical Union Meeting, San Francisco, California, USA

2015

Iron reduction rates and carbon mineralization in a soil from Puerto Rico. Barcellos D, Wilmoth J, Cycle T, Thompson A (2015): Goldschmidt - Geochemical Conference, Prague, Czech Republic

2015

Interplay of forest and topography during the growth of the Luquillo Mountains. Brocard G. (2015): Luquillo CZO Cyber Seminar

2015

Using hydrogeophysical methods to understand the spatial distribution of the bedrock-regolith interface in the Rio Icacos watershed. Comas, X. (2015): Luquillo CZO Cyber Seminar

2015

Iron-mediated C stability in two tropical soils. Coward, E.K., Plante, A.F. (2015): Luquillo CZO Cyber Seminar

2015

Fe-C associations and soil organic matter stability in two tropical soils of contrasting parent materials . Coward, L., Thompson, A., and Plante, A.F. (2015): Soil interfaces for sustainable development (ISMOM 2015), a joint meeting of Commission 2.5 of the International Union of Soil Science, Canadian Society of Soil Science, Association québécoise des spécialistes en sciences du sol, Montréal, Canada.

2015

Hot spots of sediment sources and links to Soil Organic Carbon Dynamics. Dialynas, Y., Bastola, S. (2015): Luquillo CZO Cyber Seminar 2-20-2015

2015

Do wormholes prevent landslides? The link between biological restructuring of soil and hillslope processes. Harrison, E. J., Willenbring, J. K., and Kovalovich, A. (2015): GSA 2015

2015

Mechanisms of profile development in the critical zone. Moore, O., Buss, H., Maher, K. (2015): Luquillo CZO Cyber Seminar

2015

Atmospheric Hot Spots and Hot Moments for dust inputs. Pett-Ridge J. (2015): Luquillo CZO Cyber Seminar

2015

Characterization of organo-mineral associations from tropical soil profiles using solid-state 13C NMR and thermal analysis. Plante, A.F., Stone, M.M. and Hockaday, W. (2015): Soil interfaces for sustainable development (ISMOM 2015), ), a joint meeting of Commission 2.5 of the International Union of Soil Science, Canadian Society of Soil Science, Association québécoise des spécialistes en sciences du sol, Montréal, Canada.

2015

Exploring relationships between microbial ecology and soil organic matter stability in deep tropical soil profiles. Stone M.M., Plante A.F. (2015): ESA Annual Meeting. Baltimore Maryland

2015

Iron dynamics at the Luquillo and Calhoun Critical Zone Observatories: Proposed linkages to C cycling. Thompson, A. (2015): University of Vermont Biogeochemistry Symposium Series Cross-CZO

2015

57Fe isotope labeling of reactive Fe solid phases during redox transitions in a tropical forest soil using variable temperature Mössbauer spectroscopy. Wilmoth, J. and Thompson, A. (2015): Southeastern Biogeochemistry Symposium, 2015. Atlanta, GA,.

2015

Controls on potential iron reduction in soils from diverse ecosystems. Yang, W. H., Treffkorn, J., Liptzin D. (2015): ESA Annual Meeting. Baltimore, Maryland Tuesday, August 11, 2015: 4:00 PM

2014

Fe-C associations and soil organic matter stability in tropical soils of two contrasting parent materials . Coward EK & AF Plante (2014): SOM6 workshop. Kiawah Island, SC

2014

Soil carbon and Iron . Aaron Thompson (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Identifying the Sources of Dissolved Organic Matter in Streams Using Elemental Analysis Isotopic Ratio Mass Spectroscopy (EA-IRMS) Across a Land Use Gradient. Adam Wymore,K arsten Kalbitz, Michelle Daley, Lauren Koenig,Shannen Miller,William McDowell (2014): AGU Fall Meeting. San Fransisco, CA

2014

Landscape-scale variation in nitrogen cycling across the Luquillo Experimental Forest, Puerto Rico. Almaraz, M., Lu H.S., Goldsmith S., Porder S. (2014): 99th ESA Annual Meeting (August 10 -- 15, 2014)

2014

Age and weathering rate of sediments in small catchments: the role of hillslope erosion. Anthony Dosseto, Heather Buss, François Chabaux (2014): AGU Fall Meeting. San Fransisco, CA

2014

Linkages between soil Fe reduction rates and the characteristics of redox fluctuations at the Luquillo CZO, Puerto Rico. Barcellos D, Wilmoth J, Thompson A (2014): All Hands Meeting for the Critical Zone Observatories (CZO) network, Merced, California, USA

2014

Redox fluctuations and carbon stabilization in a tropical soil from Puerto Rico. Barcellos D, Wilmoth J, Thompson A (2014): Plant and Soil Graduate Symposium, University of Georgia, Athens, Georgia

2014

Fe-C associations and soil organic matter stability . Coward, EK (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Soil carbon and Iron. Diego Barcellos (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Smart Rocks. Dylan Lee (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR. Luquillo, PR

2014

Connecting grain motion to large-scale fluctuations in bed load transport: The role of collective dynamics. Dylan Lee, Douglas Jerolmack (2014): AGU Fall Meeting. San Fransisco, CA

2014

Watershed Hydrologic modeling. Elisa Arnone (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Fe-C interactions and soil organic matter stability in two tropical soils of contrasting parent materials. Elizabeth Coward, Aaron Thompson (2014): AGU Fall Meeting. San Fransisco, CA

2014

Landscape Disturbance History and Belowground Carbon Dynamics. Erika Marin-Spiotta, A. Peyton Smith, Emily Atkinson, Nina Chaopricha (2014): AGU Fall Meeting. San Fransisco, CA

2014

Sensor Networks . Geoff Schwaner (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Form follows function: can tropical mountain forest competition drive the growth of topography?. Gilles Brocard, Jane Willenbring, Frederick Scatena (2014): AGU Fall Meeting. San Fransisco, CA

2014

Effects of sample storage on microbial Fe reduction in tropical rainforest soils. Ginn, B. R., Habteselassie, M. Y., Meile, C., and Thompson, A. (2014): Soil Biology and Biochemistry

2014

Tropical forest responses to Global change: Evidence from the Luquillo Experimental Forest. González G., Lodge D.J.,McGinley K., Jennings L.N., Heartsill-Scalley T.,Wood T.E. (2014): 99th ESA Annual Meeting (August 10 -- 15, 2014)

2014

Cielometer / data streams . Grizelle Gonzalez (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Making Sense of Sensors: Stream Carbon Flux Determination at the Five USGS WEBB Watersheds. James Shanley, John Franco Saraceno,Mark Dornblaser, Brent Aulenbach, et al. (2014): AGU Fall Meeting. San Fransisco, CA

2014

The Tool-size Effect: old weathered soils limit the erosive power of bedrock streams. Jane Willenbring, Gilles Brocard (2014): AGU Fall Meeting. San Fransisco, CA

2014

Warming Experiment Microbiology. Jennifer Pett-Ridge (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Molybdenum isotope fractionation in the critical zone. Julie Pett-Ridge, Christopher Siebert, Sophie Opfergelt, Kevin Burton, and Alexander Halliday (2014): AGU Fall Meeting. San Fransisco, CA

2014

The impacts of urbanization on dissolved organic and inorganic carbon fluxes in a tropical watershed (oral presentation). Koenig, L.E., A. Ramirez, and W.H. McDowell (2014): Joint Aquatic Sciences Meeting 2014 Portland, Oregon.

2014

Bringing a Smart Rock to Luquillo- A Tool to Constrain the Onset of Motion and Gravel Bed Impact Energies. Lee D., Jerolmack, D. (2014): Luquillo CZO Cyber Seminar

2014

O2 – sensor array. Leilei Ruan (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Soil Greenhouse Gas Flux Measurements with Automated and Manual Static Chambers, Forced Diffusion Chamber, and Concentration Profiles. Leilei Ruan,Patty Oikawa, Madeleine Géli, Joseph Verfaillie, Whendee Silver (2014): AGU Fall Meeting. San Fransisco, CA

2014

Introduction to STRI . Matt Larsen (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Long-term N dynamics in a tropical forest: Observations, inferences, and unanswered questions. McDowell, W. H. (2014): USGS National Headquarters Reston, VA. USGS National Headquarters Reston, VA

2014

Composite Method; Report from LiDAR workshop; CZO Cyber Meeting at Stroud . Miguel Leon (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

African dust inputs and cloud chemistry. Omar Gutierrez del Arroyo (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Diel patterns of soil respiration in a moist subtropical forest: key drivers and future research needs. Omar Gutiérrez del Arroyo, Tana Wood (2014): AGU Fall Meeting. San Fransisco, CA

2014

Analysis of historical records of Cloud Base. Rafael Jimenez (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Modeling Tropical Forests: Challenges and Opportunities. Sasha Reed, Maria Uriarte, Tana Wood, Molly Cavaleri (2014): AGU Fall Meeting. San Fransisco, CA

2014

Isotope hydrology research in the Luquillo CZO - overview and data resources . Scholl M. (2014): Luquillo CZO Cyber Seminar

2014

GPR and Geophysics . Scott Hynek (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

LiDAR MCC Analysis. Sebastian Martinuzzi (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Soil Nitrogen. Stephen Porder (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR

2014

Patterns in carbon chemistry and stability with depth across contrasting soil and forest types . Stone M.M., Plante A.F. (2014): Luquillo CZO Cyber Seminar

2014

Using 13C NMR to evaluate the chemical nature of subsoil organic matter in tropical forest soils. Stone MM, Hockaday W & Plante AF (2014): SOM6 Workshop.

2014

Geomorphologic influences on tropical soil weathering and nutrient status. Tamayo C.D., Brocard G., Porder S., (2014): 99th ESA Annual Meeting (August 10 -- 15, 2014)

2014

Tropical Warming Experiment . Tana Wood (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR.

2014

Fe2+ catalyzed iron atom exchange and re-crystallization in soils from the Luquillo Critical Zone Observatory . Thompson A., Tishchenko V., Meile C., Scherer M., Pasakarni T. (2014): Goldschmidt2014

2014

The Contribution of Abrasion and Size-Selective Sorting to Downstream Fining in a Tropical Montane Stream. Timea Szabo, Kimberly Miller, Douglas Jerolmack, Gabor Domokos (2014): AGU Fall Meeting. San Fransisco, CA

2014

Frontiers in Critical Zone Science: Science Advances for the Next 10 Years. Whendee Silver (2014): AGU Fall Meeting. San Fransisco, CA

2014

Iron: A Biogeochemical Engine That Drives Carbon, Nitrogen, and Phosphorus Cycling in Humid Tropical Forest Soils. Whendee Silver, Steven Hall, Aaron Thompson, Wendy Yang (2014): AGU Fall Meeting. San Fransisco, CA

2014

Linking CZO, LTER, and NEON- Putting Biology into the Critical Zone. William McDowell (2014): AGU Fall Meeting. San Fransisco, CA

2014

Soil geophysics. Xavier Comas (2014): All-hands Meeting of the Luquillo Critical Zone Observatory, Luquillo, PR. Luquillo, PR

2014

Using Hydrogeophysical Methods to Understand the Spatial Distribution of the Bedrock-regolith Interface in the Rio Icacos Watershed (Luquillo Critical Zone Observatory, Puerto Rico). Xavier Comas, William Wright, Scott Hynek, Joe Orlando, Heather Buss, Susan Brantley (2014): AGU Fall Meeting. San Fransisco, CA

2013

Effect of DEM resolution on rainfall-triggered landslide modeling within a triangulated network-based model A case study in the Luquillo Forest, Puerto Rico. Arnone, E., Dialynas, Y. G., Noto, L. V., Bras, R. L. (2013): American Geophysical Union Fall Meeting, Abstract NH23A-1522

2013

Critical Zone Science and Observatories. Brantley, S.L., White, T.S., Anderson, S.P., Bales, R.C., Chorover, J., McDowell, W.H. (2013): Abstract TH15D-01 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO National

2013

Relating Grain-Scale Weathering Observations to Catchment-Scale Critical Zone Morphology. Buss, H.L., Moore, O.W., Chapela Lara M., Schulz, M., White, A.F (2013): Goldschmidt2013 Conference Abstracts. Florence Italy.

2013

Mg isotopes: insights into weathering in tropical volcanoclastic regolith. Chapela Lara, M., Buss, H.L., Pogge Von Strandman, P.A.E., Dessert, C. Gaillardet, J. (2013): Goldschmidt2013 Conference Abstracts. Florence Italy.

2013

Chemical speciation of water soluble ions and metals of cloud and rain eater during the Puerto Rico African Dust and Clouds Study (PRADACS) Campaigns. Delgado, E.T. C.J. Valle Diaz, T. Lee, J. Collett, E. Fitzgerald, L. Cuadra, K.A. Prather, M.J. Sanchez, W.H. McDowell and O.L. Mayol-Bracer R. (2013): AGU Spring meeting

2013

A probabilistic approach for shallow rainfall-triggered landslide modeling at basin scale A case study in the Luquillo Forest, Puerto Rico. Dialynas, Y. G., Arnone, E., Noto, L. V., Bras, R. L. (2013): American Geophysical Union Fall Meeting; Abstract NH32A-06

2013 (In Press)

Evaluation of shallow flow pathways and relative contributions to solute fluxes in a tropical small mountainous river: Luquillo, Puerto Rico . Goldsmith, S.T., Porder, S., Kurtz, A., and Takagi, K. (2013): Geological Society of America Abstracts with Programs. 45 (7), 216

2013

An ecosystem approach to understanding soil C in humid tropical forests: influences of minerals, microbes, and roots. Hall, S. J. and W. L. Silver (2013): ESA Annual Meeting. Minneapolis, Minnesota

2013

Iron Redox Cycling Drives Decomposition of Mineral-Associated C in Humid Tropical Forest Soils. Hall, S. J., G. McNicol, and W. L. Silver (2013): AGU Fall Meeting. San Fransisco, CA

2013 (In Press)

The Architecture of Deep Weathering at Two CZOs: Groudnwater, Regolith, and Solutes at Susquehanna Shale Hills and Luquillo Experimental Forest. Hynek, S.A., Orlando, J.J., Sullivan, P., Brantley, S.L. (2013): GSA Annual Meeting, Denver, CO , 27-30 October, 2013.

2013

The Architecture of Deep Weathering at Two CZOs: Groundwater, Regolith, and Solutes at Susquehanna Shale Hills and Luquillo Experimental Forest . HYNEK, Scott A., ORLANDO, Joseph J., SULLIVAN, Pamela, and BRANTLEY, Susan L. (2013): GSA Annual Meeting Cross-CZO

2013

African Dust and Clouds at Pico del Este: The Puerto Rico African Dust and Cloud Study . Mayol-Bracero, O. L. (2013): AGU Fall Meeting. San Fransisco, CA

2013

Soils and stream chemistry: When, where and why are they linked? . McDowell, W.H. (2013): European Geophysical Union Annual Meeting, Vienna, Austria

2013

Carbon losses from the Critical Zone: Quantifying the effects of lithology and urbanization on concentrations of organic and inorganic carbon in coastal montane tropical rivers. McDowell, W.H., Scatena, F.N., Ramirez, A., Potter, J.D. (2013): SE Section Annual Meeting, Geological Society of America

2013

Non-linear response of soil carbon gas (CO2, CH4) flux to oxygen availability. McNicol, G. and W.L. Silver (2013): ESA Annual Meeting. Sacramento, California

2013

Drilling and GPR in the Rio Icacos Watershed if the Luquillo CZO, Puerto Rico: Weathering Processes and Architecture of the Deep Critical Zone. Orlando, J.J., Hynek, S.A., Comas, X., Buss, H.L., Brantley, S.L. (2013): Geological Society of America

2013

Linking geomorphology, weathering and soil cations in the Luquillo Mountains of Puerto Rico. Porder, S. Johnson, A.H., Xing H., Brocard G.Y., Goldsmith S.T. (2013): 2013 Fall Meeting, AGU, San Francisco, Calif

2013 (In Press)

Disequilibrium Erosion in Eastern Puerto Rico – Is this How Many Clastic Sediment deposits are made? . Stallard, R.F. (2013): GSA Annual Meeting, Denver, CO , 27-30 October, 2013.

2013

Changes in extracellular enzyme activities and kinetics with depth across contrasting parent materials in the Luquillo Critical Zone. Stone M.M., Plante, A.F. (2013): Ecological Society of America Conference 2013.

2013

Soil Organic Matter and Microbial Activity in Critical Zone of Tropical Soils from Luquillo, Puerto Rico. Stone, M.M., Plante, A.F. (2013): Goldschmidt2013 Conference Abstracts. Florence Italy.

2013

A landscape-scale assessment of nutrient limitation in the tropical forests of Luquillo, Puerto Rico. Sullivan, C.A., Goldsmith S., Porder S. (2013): 2013 Fall Meeting, AGU, San Francisco, Calif

2013

Long-term climatic and topographic controls on sedminent export in the Luquillo Critical Zone Observatory. Willenbring, J.K., Brocard, G.Y., Scatena, F.N. (2013): GSA Annual Meeting, Denver, CO , 27-30 October, 2013

2012

Critical Zone Observatories (CZOs): Integrating measurements and models of Earth surface processes to improve prediction of landscape structure, function and evolution (Invited). Chorover J., Anderson S. P., Bales R. C., Duffy C., Scatena F. N., Sparks D. L., White T. (2012): Abstract GCS4A-05 presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 3-7 Dec (Talk) Cross-CZO National

2012

AN EXPANDED HOLOCENE DATABASE OF RELATIVE SEA LEVELS FOR NORTH AMERICA AND THE CARIBBEAN: IMPLICATIONS FOR 20TH CENTURY SEA-LEVEL RISE AND GEOPHYSICAL MODELS. Engelhart, S. E., Horton B.P., Peltier, R.W., Khan N., Lui S., Vacchi, M. (2012): Geological Society of America Abstracts with Programs. Vol. 44, No. 7, p.448

2012

Effects of catastrophic hurricane disturbance on the biogeochemistry of forested watersheds. McDowell, W.H. (2012): Soil Science Society of America Annual Meeting

2012

RESISTANCE, RESILIENCE, AND VARIABILITY IN TROPICAL STREAM CHEMISTRY: IMPLICATIONS FOR WATERSHED FUNCTION AND BIOGEOCHEMICAL THEORY. McDowell, W.H. (2012): Geological Society of America Abstracts with Programs. Vol. 44, No. 7, p.504

2012

Stream Channel Response to Urbanization in the Humid Tropical Region of Northeast Puerto Rico. Phillips, C. B. (2012): Geological Society of America Abstracts with Programs. Vol. 44, No. 7, p.105

2012

Just passing through --- high Hg deposition to Puerto Rico forest moves quickly off the landscape. Shanley, J. B, J.K. Willenbring, J. Kaste, M. Occhi, W.H. McDowell (2012): AGU Annual fall meeting

2011

Germanium-silicon as a flow path tracer: Application to the Rio Icacos watershed. Kurtz A.C., Lugolobi F., Salvucci G. (2011): Water Resources Research

2010

Development of an integrated information system for Critical Zone Observatory data . Whitenack, T , Williams, M W, Tarboton, D G, Zaslavsky, I, Durcik, M, Lucas, R G, Dow, C, Meng, X, Bills, B, Leon, M, Yang, C, Arnold, M, Aufdenkampe, A K, Schreuders, K, Alvarez, O. (2010): Fall Meeting, American Geophysical Union. December 2010. Abstract IN31B-1289 Cross-CZO National

2008

Vegetation-Hydrology Dynamics in Complex Terrain of Semiarid Areas: I A Mechanistic Approach to Modeling Dynamic Feedbacks. Ivanov V.Y., Bras R.L., Vivoni E.R. (2008): Water Resources Research