2019

Boulder Creek Critical Zone Observatory Annual report 2019 . Anderson, S.P., Anderson, R.S., Molotch, N.P., Rajaram, H., Tucker, G.E. (2019): NSF Award #1331828

2019

Ecological and genomic attributes of novel bacterial taxa that thrive in subsurface soil horizons. Brewer, Tess E., Emma L. Aronson, Keshav Arogyaswamy, Sharon A. Billings, Jon K. Botthoff, Ashley N. Campbell, Nicholas C. Dove, Dawson Fairbanks, Rachel E. Gallery, Stephen C. Hart, Jason Kaye, Gary King, Geoffrey Logan, Kathleen A. Lohse, Mia R. Maltz, Emilio Mayorga, Caitlin O’Neill, Sarah M. Owens, Aaron Packman, Jennifer Pett-Ridge, Alain F. Plante, Daniel D. Richter, Whendee L. Silver, Wendy H. Yang, Noah Fierer (2019): mBio Oct 2019, 10 (5) e01318-19 Cross-CZO National

2019

Inorganic nitrogen wet deposition gradients in the Denver-Boulder metropolitan area and Colorado Front Range – Preliminary implications for Rocky Mountain National Park and interpolated deposition maps. Wetherbee, G., Benedict, K., Murphy, S., Elliott, E. (2019): Science of the Total Environment 691 (2019) 1027–1042

2018

Boulder Creek Critical Zone Observatory Annual report 2018. Anderson, S.P., Anderson, R.S., Molotch, N.P., Rajaram, H., Tucker, G.E. (2018): Boulder Creek CZO, University of Colorado Boulder

2018

Reevaluating growing season length controls on net ecosystem production in evergreen conifer forests. Barnard, D.M., Knowles, J.F., Barnard, H.R., Goulden, M.L., Hu, J., Litvak, M.E., Molotch, N.P. (2018): Scientific Reports 8(1): 17973 Cross-CZO

2018

Tales from the tomb: the microbial ecology of exposed rock surfaces. Brewer, T.E., N. Fierer (2018): Environmental Microbiology 20(3): 958-970

2018

Anthropocene Landscape Change and the Legacy of Nineteenth- and Twentieth-Century Mining in the Fourmile Catchment, Colorado Front Range. Dethier, D. P., Ouimet, W. B., Murphy, S. F., Kotikian, M., Wicherski, W., & Samuels, R. M. (2018): Annals of the American Association of Geographers, 1-21

2018

Solifluction Lobes on Niwot Ridge: Using Drones, Time-lapse Cameras, and Weather Data to Study Periglacial Features . Dylan Lanka (2018): Senior honors thesis, Physical Geography, University of Colorado.

2018

Humidity determines snowpack ablation under a warming climate. Harpold A.A. and Brooks P.D. (2018): PNAS 115(6): 1215-1220 Cross-CZO

2018

Examining the Role of Organic Compounds and Secondary Minerals on Ga/Al Fractionation in the Critical Zone. Justin B. Richardson*, Benjamin W. Kumpf, and Louis A. Derry (2018): Abstract 12c:345 presented at 2018 Goldschmidt Meeting, Boston, MA 12-17 August Cross-CZO

2018

Snowmelt‐driven trade‐offs between early and late season productivity negatively impact forest carbon uptake during drought. Knowles J.F., Molotch N.P., Trujillo E. & Litvak M.E. (2018): Geophysical Research Letters 45: 3087–3096 Cross-CZO

2018

On the use of a snow aridity index to predict remotely sensed forest productivity in the presence of bark beetle disturbance . Knowles, JK, L. Lestak, N.P. Molotch (2018): Water Resources Research, 53: 4891-4906

2018

Which way do you lean? Using slope aspect variations to understand Critical Zone processes and feedbacks. Pelletier J. D., Barron‐Gafford G. A., Gutiérrez‐Jurado H., Hinckley E.‐L. S., Istanbulluoglu E., McGuire L. A., Niu G.‐Y., Poulos M. J., Rasmussen C., Richardson P., Swetnam T. L., and Tucker G. E. (2018): Earth Surface Processes and Landforms, 43(5): 1133–1154 Cross-CZO

2018

A net ecosystem carbon budget for snow dominated forested headwater catchments: linking water and carbon fluxes to critical zone carbon storage. Perdrial J., Brooks P.D., Swetnam T., Lohse K.A., Rasmussen C., Litvak M., Harpold A.A., Zapata-Rios X., Broxton P., Mitra B., Meixner M., Condon K., Huckle D., Stielstra C., Vázquez-Ortega A., Lybrand R., Holleran M., Orem C., Pelletier J., Chorover J. (2018): Biogeochemistry 138{3): 225–243 Cross-CZO

2018

Mercury sourcing and sequestration in weathering profiles at six Critical Zone Observatories. Richardson, Justin B., Arnulfo A. Aguirre, Heather L. Buss, A. Toby O'Geen, Xin Gu, Daniella M. Rempe, and Daniel deB. Richter (2018): Global Biogeochemical Cycles, 32(10):1542-1555 Cross-CZO National

2018

Ideas and perspectives: Strengthening the biogeosciences in environmental research networks. Richter, D.D., S.A. Billings, P.M. Groffman, E.F. Kelly, K.A. Lohse, W.H. McDowell, T.S. White, S. Anderson, D.D. Baldocchi, S. Banwart, S. Brantley, J.J. Braun, Z.S. Brecheisen, C.W. Cook, H.E. Hartnett, S.E. Hobbie, J. Gaillardet, E. Jobbagy, H.F. Jungkunst, C.E. Kazanski, J. Krishnaswamy, D. Markewitz, K. O’Neill, C.S. Riebe, P. Schroeder, C. Siebe, W.L. Silver, A. Thompson, A. Verhoef, G. Zhang (2018): Biogeosciences 15: 4815-4832 Cross-CZO National

2018

Erosion and channel changes due to extreme flooding in the Fourmile Creek catchment, Colorado . Wicherski, W, Dethier, DP, and Ouimet, WB (2018): Geomorphology 294: 87-98

2017

Colloidal transport in the Gordon Gulch catchment of the Boulder Creek CZO and its effect on C‐Q relationships for silicon. Aguirre A.A., Derry L.A., Mills J.T., Anderson S.P. (2017): Water Resources Research 53, 2368–2383, Cross-CZO National

2017

Growing new generations of critical zone scientists. Wymore, Adam S., Nicole R. West, Kate Maher, Pamela L. Sullivan, Adrian Harpold, Diana Karwan, Jill A. Marshall, Julia Perdrial, Daniella M. Rempe and Lin Ma (2017): Earth Surface Processes and Landforms 42 (14): 2498-2502 Cross-CZO National

2017

Boulder Creek Critical Zone Observatory Annual report 2017. Anderson, S. (2017): Boulder Creek CZO, University of Colorado Boulder

2017

Topoclimate effects on growing season length and montane conifer growth in complex terrain . Barnard, DM, Barnard, HR, and Molotch, NP (2017): Environmental Research Letters 12

2017

Designing a network of critical zone observatories to explore the living skin of the terrestrial Earth. Brantley, S.L., McDowell, W.H., Dietrich, W.E., White, T.S., Kumar, P., Anderson, S., Chorover, J., Lohse, K.A., Bales, R.C., Richter, D., Grant, G., and Gaillardet, J. (2017): Earth Surface Dynamics, 5, 841–860 Cross-CZO National

2017

Reviews and syntheses: on the roles trees play in building and plumbing the critical zone. Brantley, Susan L., David M. Eissenstat, Jill A. Marshall, Sarah E. Godsey, Zsuzsanna Balogh-Brunstad, Diana L. Karwan, Shirley A. Papuga, Joshua Roering, Todd E. Dawson, Jaivime Evaristo, Oliver Chadwick, Jeffrey J. McDonnell, Kathleen C. Weathers (2017): Biogeosciences, 14, 5115-5142 Cross-CZO National

2017

Regional sensitivities of seasonal snowpack to elevation, aspect, and vegetation cover in western North America. Christopher J. Tennant, Adrian A. Harpold, Kathleen Ann Lohse, Sarah E. Godsey, Benjamin T. Crosby, Laurel G. Larsen, Paul D. Brooks, Robert W. Van Kirk, Nancy F. Glenn (2017): Water Resources Research 53 Cross-CZO National

2017

Sources of streamflow along a headwater catchment elevational gradient. Cowie, R. M., Knowlesa, J. F., Daileya, K. R., Williamsa, M. W., Millsa, T. J., Molotch, N. P. (2017): Journal of Hydrology Volume 549, June 2017, Pages 163–178

2017

Block-controlled hillslope form and persistence of topography in rocky landscapes. Glade, R. C., Anderson, R. S., and Tucker, G. E. (2017): Geology, First published on 2017-01-23 12:45:18, doi:10.1130/G38665.1

2017

Impacts of increasing aridity and wildfires on aerosol loading in the intermountain western US. Hallar, A.G., N.P. Molotch, J. Hand, L.R. Lestak, I.B. McCubbin, B. Livneh, R. Petersen, J. Michalsky, D. Lowenthal (2017): Environmental Research Letters, 12(1): article 014006

2017

Runoff generation in Betasso catchment: Investigation of Hortonian overland flow . Hammack, Garret (2017): Senior honors thesis, Physical Geography, University of Colorado.

2017

Geochemical evolution of the Critical Zone across variable time scales informs concentration-discharge relationships: Jemez River Basin Critical Zone Observatory. McIntosh J.C., Schaumberg C., Perdrial J., Harpold A., Vázquez-Ortega A., Rasmussen C., Vinson D., Zapata-Rios X., Brooks P.D., Meixner T., Pelletier J., Derry L., Chorover J. (2017): Water Resources Research 53(5): 4169–4196 Cross-CZO National

2017

Hypothesis testing in hydrology: A view from the field: The value of hydrologic hypotheses in designing field studies and interpreting the results to advance hydrology . McKnight, DM (2017): Water Resources Research 53: 1779-1783

2017

Short-Term Wildfire Impacts in a Rocky Mountain Catchment: Searching for Evidence of Riverine Black Carbon Transport after the Cold Springs Wildfire. Ragar, Dillon (2017): Senior honors thesis, Environmental Studies, University of Colorado.

2017

Gilbert’s soil production paradigm and a critical zone’s size-dependent fractionation of particles. Richter, D.deB., J. Austin, R. Anderson, A. Bacon, S. Brantley, Z. Brecheisen, A. Cherkinsky, W.S. Holbrook, V. Marcon, J.Pachon, P. Schroeder, A. Thompson, and A. Wade (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017 Cross-CZO

2017

Concentration-discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood. Rue, G.P., Rock, N. D., Gabor, R. S., Pitlick, J., Tfaily, M., McKnight, D. M. (2017): Water Resources Research

2017

Fostering Collaboration Across the US Critical Zone Observatories Network. Sharkey, S. and White, T. (2017): 2017 American Geophysical Union Fall Meeting, New Orleans, LA, 11-15 Dec Cross-CZO National

2017

Characterizing hyporheic exchange processes using high-frequency electrical conductivity-discharge relationships on subhourly to interannual timescales. Singley, J. G., Wlostowski, A. N., Bergstrom, A. J., Sokol, E. R., Torres, C. L., Jaros, C., Wilson, C. E., Hendrickson, P. J., Gooseff, M. N. (2017): Water Resources Research 53, 4124–4141 Cross-CZO National

2017

Topographically driven differences in energy and water constrain climatic control on forest carbon sequestration. Swetnam T.L., Brooks P.D., Barnard H.R., Harpold A.A., and Gallo E.L. (2017): Ecosphere 8(4): e01797 Cross-CZO

2017

Topographically driven differences in energy and water constrain climatic control on forest carbon sequestration . Swetnam, TL, Brooks, PD, Barnard, HR, Harpold, AA, and Gallo, EL (2017): Ecosphere 8 (4): e01797. Cross-CZO

2016

Boulder Creek Critical Zone Observatory (BcCZO-II) Annual report 2016. Anderson, S. (2016): Boulder Creek CZO, University of Colorado Boulder

2016 (In Review)

Snowmelt Rate Dictates Streamflow . Barnhart, T.B., Molotch, N.P., Harpold, A., Knowles, J., Livneh, B., and Schneider, D., (2016): Geophysical Research Letters.

2016

Dissolved organic matter transport reflects hillslope to stream connectivity during snowmelt in a montane catchment. Burns, M.A., Barnard, H.R., Gabor, R.S., McKnight, D.M., and Brooks, P.D. (2016): Water Resources Research 52 (6)

2016

Assessing the effect of a major storm on 10Be concentrations and inferred basin-averaged denudation rates. Foster, M.A. and Anderson, R.S. (2016): Quaternary Geochronology 34: 58-68

2016

Optimizing available network resources to address questions in environmental biogeochemistry . Hinckley, E-L, Anderson, SP, Baron, JS, Blanken, PD, Bonan, G., Bowman, WD, Elmendorf, S, Fierer, N, Fox, A, Goodman, K, Jones, K, Lombardozzi, D, Lunch, C, Neff, J, SanClements, M, Suding, K, and Wieder, W (2016): BioScience, Volume 66, Issue 4, 1 April 2016, Pages 317–326,

2016

Examining diel patterns of soil and xylem moisture using electrical resistivity imaging. Mares, R., Barnard, H. R., Mao, D., Revil, A., Singha, K. (2016): Journal of Hydrology 536 (2016) 327–338

2016

Variation of organic matter quantity and quality in streams at Critical Zone Observatory watersheds. Miller, Matthew P., Boyer, Elizabeth W., McKnight, Diane M., Brown, Michael G., Gabor, Rachel S., Hunsaker, Carolyn T., Iavorivska, Lidiia, Inamdar, Shreeram, Johnson, Dale W., Kaplan, Louis A., Lin, Henry, McDowell, William H., Perdrial, Julia N. (2016): Water Resources Research, 52 (10): 8202–8216 Cross-CZO

2016

A similarity solution for reaction front propagation in a fracture-matrix system . Rajaram, H. and Arshadi, M. (2016): Phil. Trans. R. Soc. A 374: 20150424

2016

Gophers as geomorphic agents in the Colorado Front Range . Winchell, E.W., Anderson, R.S., (2016): Geomorphology 264: 41-51

2015

Particle trajectories on hillslopes: Implications for particle age and 10Be structure. Anderson, R.S. (2015): JGR-Earth Surface 120: 1626–1644

2015

Boulder Creek Critical Zone Observatory (BcCZO-II) Annual report 2015. Anderson, S. (2015): Boulder Creek CZO, University of Colorado Boulder

2015

Exhumation by debris flows in the 2013 Colorado Front Range storm. Anderson, S.W., Anderson, S. P., and Anderson, R. S. (2015): Geology, Geological Society of America

2015

Complex terrain alters temperature and moisture limitations of forest soil respiration across a semiarid to subalpine gradient . Berryman, E.M., Barnard, H.R., *Adams, H.R., *Burns, M.A., Gallo, E., and Brooks, P.D. (2015): Journal of Geophysical Research- Biogeosciences, 120, 707-723

2015

Recent tree die-off has little effect on streamflow in contrast to expected increases from historical studies. Biederman J.A., Somor A.J., Harpold A.A., Gutmann E.D., Breshears D.D., Troch P.A., Gochis D.J., Scott R.l., Meddens A.J.H., and Brooks P.D. (2015): Water Resources Research 51(12): 9775-9789 Cross-CZO

2015

Quantifying the effects of vegetation structure on snow accumulation and ablation in mixed-conifer forests. Broxton P. D., Harpold A. A., Biederman J. A., Troch P. A., Molotch N. P., and Brooks P. D. (2015): Ecohydrology 8(6): 1073-1094 Cross-CZO

2015

The river as a chemostat: Fresh perspectives on dissolved organic matter flowing down the river continuum . Creed, I. F., McKnight, D. M., Pellerin, B. A., Green, M. B., Bergamaschi, B. A., Aiken, G. R., Burns, D. A., Findlay, S. E. G., Shanley, J. B., Striegl, R. G. (2015): Canadian Journal of Fisheries and Aquatic Sciences 72(8):1272-1285

2015

Hydrodynamic control of benthic mats of Didymosphenia geminata at the reach scale. Cullis, J., McKnight, M. and Spaulding, S. (2015): Canadian Journal of Fisheries and Aquatic Sciences

2015

Aspect-dependent soil saturation and insight into debris-flow initiation during extreme rainfall in the Colorado Front Range. Ebel, B.A., Rengers, F. K., and Tucker, G.E. (2015): Geology 43 (8): 659-662

2015

Using 10Be to deduce rates of landscape evolution and mobile-regolith residence times in Gordon Gulch, Boulder Creek CZO. Foster, M.A., Anderson, R.S., Wyshnytzky, C.E., Ouimet, W.B., Dethier, D.P (2015): GSA Bulletin 127 (5/6): 862–878

2015

Influence of Leaching Solution and Catchment Location on the Fluorescence of Water-Soluble Organic Matter. Gabor, R. S., Burns, M. A., Lee, R. H., Elg, J. B., Kemper, C. J., Barnard, H. R, and McKnight, D. M. (2015): Environmental Science & Technology Article ASAP

2015

Soil moisture response to snowmelt timing in mixed-conifer subalpine forests. Harpold A. A., Molotch N. P., Musselman K. N., Bales R. C., Kirchner P. B., Litvak M. and Brooks P. D. (2015): Hydrological Processes 29(12): 2782–2798 Cross-CZO

2015

Laser vision: lidar as a transformative tool to advance critical zone science. Harpold, A. A., Marshall, J. A., Lyon, S. W., Barnhart, T. B., Fisher, B. A., Donovan, M., Brubaker, K. M., Crosby, C. J., Glenn, N. F., Glennie, C. L., Kirchner, P. B., Lam, N., Mankoff, K. D., McCreight, J. L., Molotch, N. P., Musselman, K. N., Pelletier, J., Russo, T., Sangireddy, H., Sjöberg, Y., Swetnam, T., and West, N. (2015): Hydrol. Earth Syst. Sci., 19, 2881-2897 Cross-CZO National

2015

Common Critical Zone Observatory (CZO) Infrastructure and Measurements. J. Chorover, S. Anderson, A. K. Aufdenkampe, R. C. Bales, S. L. Brantley, W. Dietrich, P. Kumar, K. A. Lohse, W. McDowell, D. Richter, T. White (2015): A Guide Prepared By CZO PIs, May 05, 2015 Cross-CZO National

2015

Evidence for climatic and hillslope-aspect controls on vadose zone moisture and saprolite weathering. Langston, A. L., Tucker,G. E., Anderson, R. S. and Anderson, S. P. (2015): ESPL, 40 1254-1269

2015

Interpreting climate-modulated processes of terrace development along Colorado Front Range using a landscape evolution model. Langston, A.L., G.E. Tucker, R.S. Anderson (2015): JGR-Earth Surface 120: 2121-2138

2015

The role of precipitation type, intensity, and spatial distribution in source water quality after wildfire. Murphy, S. F., Writer, J. H., McCleskey, R. B., and Martin, D. A. (2015): Environ. Res. Lett. 10 084007

2015

Geophysical imaging reveals topographic stress control of bedrock weathering. St. Clair, J., S. Moon, W. S. Holbrook, J. T. Perron, C. S. Riebe, S. J. Martel, B. Carr, C. Harman, K. Singha, D. deB. Richter (2015): Science 350 (6260): 534-538 Cross-CZO National

2015

Climatic and landscape influences on soil moisture are primary determinants of soil carbon fluxes in seasonally snow-covered forest ecosystems. Stielstra C.M., Lohse K.A., Chorover J., McIntosh J.C., Barron-Gafford G.A., Perdrial J.N., Litvak M., Barnard H.R., Brooks P.D. (2015): Biogeochemistry 123(3): 447–465 Cross-CZO

2015

Topographic Control of Aboveground Carbon Pools Across an Environmental Gradient, Eastern Slope of the Rocky Mountains, Colorado. Swetnam T., Brooks P., Gallo E., Barnard H., Harpold A. (2015): Abstract H21C-1382 presented at 2015 Fall Meeting, AGU, San Francisco, CA, 14-18 Dec. Cross-CZO

2015

Rare Earth Elements as Reactive Tracers of Biogeochemical Weathering in Forested Rhyolitic Terrain. Vázquez-Ortega A., Perdrial J., Harpold A., Zapata-Ríos X., Rasmussen C., McIntosh J., Schaap M., Pelletier J.D., Brooks P.D., Amistadi M.K., Chorover J. (2015): Chemical Geology 391: 19-32 Cross-CZO

2015

Chapter 2 – The Role of Critical Zone Observatories in Critical Zone Science. White T., Brantley S., Banwart S., Chorover J., Dietrich W., Derry L., Lohse K., Anderson S., Aufdendkampe A., Bales R., Kumar P., Richter D., McDowell B. (2015): Developments in Earth Surface Processes 19: 15–78 Cross-CZO National

2015

Meteoric 10Be, clay, and extractable iron depth profiles in the Colorado Front Range: Implications for understanding soil mixing and erosion. Wyshnytzky, C., Ouimet WB, McCarthy, J, Dethier, DP, Shroba, RR, Bierman, PR, and Rood, DH (2015): Catena 127: 32-45

2015

Spatial and temporal variations in meteoric 10Be inventories and long-term deposition rates, Colorado Front Range. Wyshnytzky, C., Ouimet WB, McCarthy, J, Dethier, DP, Shroba, RR, Bierman, PR, and Rood, DH (2015): Quaternary Science Reviews

2014

Topography alters tree growth–climate relationships in a semi-arid forested catchment. Adams H. R., Brnard H. R., and Loomis A. K. (2014): Ecosphere, Volume 5(11) v Article 148

2014

The effects of interannual climate variability on the moraine record. Anderson, L., Roe, G., and Anderson R. (2014): Geology 42(1): 55-58

2014

Boulder Creek Critical Zone Observatory (BcCZO-II) Annual report 2014. Anderson, S. (2014): Boulder Creek CZO, University of Colorado Boulder

2014

Variation in critical zone processes and architecture across slope aspects, . Anderson, SP, Hinckley, E-L, Kelly, P, Langston, A (2014): Procedia Earth and Planetary Science 10: 28-33

2014

Reconciling stream dissolved organic matter with snowmelt-driven subsurface flowpaths in a montane, headwater catchment (Invited). Barnard H., Burns M., McKnight D., Gabor R., Brooks P. (2014): Abstract H53K-03 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec. Cross-CZO

2014

EP33B-3635 Using shallow seismic tomography to characterize patterns of near-surface weathering and the mobile-immobile regolith transition: Implications for the erodibility and morphology of hillslopes . Brian Clarke • Eric Kirby • Douglas Burbank • Nicole West (2014): 2014 AGU Annual Fall Meeting, San Francisco, CA, Dec 15-19th Cross-CZO

2014

Snow temperature changes within a seasonal snowpack and their relationship to turbulent fluxes of sensible and latent heat. Burns, S.P., P.D. Blanken, M.W. Williams, N.P. Molotch, B. Seok, J.K. Knowles, R.K. Monson, A.A. Turnipseed (2014): Journal of Hydrometeorology, 15, 117-142

2014

Diel flow pulses drive particulate organic matter transport from microbial mats in a glacial meltwater stream in the McMurdo Dry Valleys. Cullis, J.D.S., Stanish, L.F., and McKnight, D.M. (2014): Water Resources Research 50: 86-97

2014

Common questions of the US NSF–supported Critical Zone Observatories. Dietrich, W.E. and Lohse, K. (2014): A Guide Prepared By CZO PIs Cross-CZO National

2014

The Role of Dynamic Storage in the Response to Snowmelt Conditions in the Southwestern United States: Flux Hysteresis at the Catchment Scale. Driscoll J., Meixner T., Ferré T., Williams M., Sickman J., Molotch N., Jepsen S. (2014): Abstract H51O-0825 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec. Cross-CZO

2014

Fluorescence Indices and their Interpretation . Gabor, R., A Baker, D. McKnight, *M. Miller (2014): In Aquatic Organic Matter Fluorescence, Coble, P.G., Lead, J., Baker, A., Reynolds, D.M., and Spencer, R.G.M., eds., Cambridge University Press , p. 303-339, isbn: 9781139897907

2014

From the litter layer to the saprolite: Chemical changes in water-soluble soil organic matter and their correlation to microbial community composition. Gabor, R., Eilers, K., McKnight, D., Fierer, N., Andersond, S. (2014): Soil Biology & Biochemistry 68 (2014) 166e176

2014

Changes in snow accumulation and ablation following the Las Conchas Forest Fire, New Mexico, USA. Harpold A.A., Biederman J.A., Condon K., Merino M., Korgaonkar Y., Nan T., Sloat L.L., Ross M. and Brooks P.D. (2014): Ecohydrology 7(2): 440–452 Cross-CZO

2014

LiDAR-derived snowpack data sets from mixed conifer forests across the Western United States. Harpold, A.A., Q. Guo, N. Molotch, P. D. Brooks, R. Bales, J.C. Fernandez-Diaz, K.N. Musselman, and T.L. Swetnam, P. Kirchner, M. Meadows, J. Flanagan, R. Lucas (2014): Water Resources Research 50(3): 2749-2755 Cross-CZO

2014

Aspect control of water movement on hillslopes near the rain-snow transition of the Colorado Front Range, USA . Hinckley, E-L S., Ebel, B.A., Barnes, R.T., Anderson, R.S., Williams, M.W. and Anderson. S.P. (2014): Hydrological processes 28: 74-85

2014

Nitrogen retention and transport differ by hillslope aspect at the rain-snow transition of the Colorado Front Range. Hinckley, E.-L., Barnes, R.T., Anderson, S.P., Williams, M.W., and Bernasconi, S. (2014): Journal of Geophysical Research Biogeosciences 119(7): 1281-1296

2014

LiDAR measurement of seasonal snow accumulation along an elevation gradient in the southern Sierra Nevada, California. Kirchner, P.B., Bales, R.C., Molotch, N.P., Flanagan, J., Guo, Q (2014): Hydrology and Earth System Sciences 18: 4261-4275 Cross-CZO

2014

Snow cover depletion curves and snow water equivalent reconstruction: six decades of hydrologic remote sensing applications . Molotch, N.P., Durand, M.T., Guan, B., Margulis, S.A., and Davis, R.E. (2014): In Lakshmi, Venkataraman, ed., AGU Monograph on Remote Sensing of the Terrestrial Water Cycle, American Geophysical Union, p. 159-174, ISBN 978-1-118-87203-1

2014

Stream water carbon controls in seasonally snow-covered mountain catchments: impact of inter-annual variability of water fluxes, catchment aspect and seasonal processes. Perdrial J.N., McIntosh J., Harpold A., Brooks P.D., Zapata-Rios X., Ray J., Meixner T., Kanduc T., Litvak M., Troch P.A., Chorover J. (2014): Biogeochemistry 118(1-3): 273-290 Cross-CZO

2014

Relationships between stream nitrate concentration and spatially distributed snowmelt in high-elevation catchments of the western US. Perrot, D., N. P. Molotch, M. W. Williams, S. M. Jepsen, and J. O. Sickman (2014): Water Resour. Res., 50, 8694–8713

2013

Boulder Creek CZO II: Evolution, Form, Function, and Future of the Critical Zone. Anderson, R., Anderson, S., Molotch, N., Rajaram, H., Tucker, G. (2013): Submitted to NSF Solicitation NSF 12-575

2013

Rock damage and regolith transport by frost: an example of climate modulation of the geomorphology of the critical zone. Anderson, R.S., Anderson, S.P., and Tucker, G.E. (2013): EARTH SURFACE PROCESSES AND LANDFORMS Earth Surf. Process. Landforms

2013

The strength of strategically placed in situ networks: The Critical Zone Observatory Program (Invited). Bales R.C., Brooks P.D., Molotch N.P. (2013): Abstract H53L-02 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO

2013

Tree root mounds and their role in transporting soil on forested landscapes. Benjamin S. S. Hoffman and Robert S. Anderson (2013): EARTH SURFACE PROCESSES AND LANDFORMS Earth Surf. Process. Landforms

2013

Coupled soil respiration and transpiration dynamics from tree-scale to catchment scale in dry Rocky Mountain pine forests and the role of snowpack. Berryman E., Barnard H.R., Brooks P.D., Adams H., Burns M.A., Wilson W., Stielstra C.M. (2013): Abstract H23C-1279 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO

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

Transport and Transformation of Dissolved Organic Matter in Soil Interstitial Water Across Forested, Montane Hillslopes. Burns M.A., McKnight M.D., Gabor R.S., Brooks P.D., Barnard H.R. (2013): Abstract H23F-1340 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO

2013

Cross-CZO Contrasts: Aspect Controls and Critical Zone Architecture. Clarke, B.A., Kirby, E., Burbank, D.W., West, N. (2013): Abstract H43L-07presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO

2013

Shear removal function for the nuisance stalk forming diatom Didymosphenia geminate. Cullis J.D.S., Crimaldi J.P. and McKnight D.M. (2013): L&O: Environments and Fluids 3: 256-268

2013

Hydrodynamic shear removal of the nuisance stalk-forming diatom Didymosphenia geminata. Cullis, J., Crimaldi J., and McKnight, M. (2013): Limnology and Oceanography: Fluids and Environments

2013

Bridging from Soil to Ecosystem Goods and Services Provided by the Critical Zone. Field J.P., Breshears D.D., Law D.J., Brooks P.D., Chorover J., Pelletier J.D., Troch P.A., López-Hoffman L., Rasmussen C., Papuga S., Harpold A., Biederman J.A., Barron-Gafford G.A., McIntosh J.C., Litvak M. (2013): Abstract presented at AGU Chapman Conference on Soil-mediated Drivers of Coupled Biogeochemical and Hydrological Processes Across Scales, Biosphere 2, Tucson, Arizona, 21-24 October 2013 (Poster) Cross-CZO

2013

Changing mountain permafrost from the 1970s to today - comparing two examples from Niwot Ridge, Colorado Front Range, USA. Leopold, M., Volkel, J., Dethier, D. P., and Williams, M.W. (2013): Zeitschrift for Geomorphologie, Supplementary Issue

2013

Subsurface architecture of the Boulder Creek Critical Zone Observatory from electrical resistivity tomography. Leopold, M., Völkel, J., Huber, J., and Dethier, D. (2013): Earth Surface Processes and Landforms, 38, 1417–1431

2013

Do fire disturbances account for missing C in snow dominated headwater catchments in NM?. Perdrial J.N., Brooks P.D., Swetnam T., Lohse K.A., Rasmussen C., Harpold A.A., Litvak M.E., Broxton P.D., Mitra B., Condon K., Huckle D.M., Vazquez A., Lybrand R.A., Holleran M., Orem C.A., Meixner T., Chorover J. (2013): Abstract B33E-0531 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO

2013

Biogeochemistry of beetle-killed forests: Explaining a weak nitrate response. Rhoades, C.C., McCutchan, J.H. Jr., *Cooper, L.A., Clow, D., Detmer, T.M., Briggs, J.S., Stednick, J.D., Veblen, T.T., Ertz, R.M., Liken, G.E., and Lewis, W.M. Jr. (2013): Proceedings of the National Academy of Science, 110 (5) 1756-1760

2013

A model for post-orogenic development of a mountain range and its foreland. Tucker, G. E., & van der Beek, P. (2013): Basin Research, 25(3), 241-259

2012

Far-flung moraines: Exploring the feedback of glacial erosion on the evolution of glacier length. Anderson, R. S., Dühnforth, M., Colgan, W. and Anderson, L. (2012): Geomorphology 2012 v.179 pp. 269-285

2012

Boulder Creek Critical Zone Observatory Annual report 2012. Anderson, S. (2012): Boulder Creek CZO, University of Colorado Boulder

2012

Landscape scale linkages in critical zone evolution. Anderson, S.P., Anderson, R.S., and Tucker, G.E. (2012): Comptes Rendus Geoscience, 344: 586-596

2012

Linkages between denitrification and organic matter quality, Boulder Creek Watershed, CO. Barnes, R.T., R.L. Smith, and G.R. Aiken (2012): Journal of Geophysical Research- VOL. 117, G01014, 14 PP

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

A conceptual model for the blooming behavior and persistence of the benthic mat-forming diatom Didymosphenia geminata in oligotrophic streams. Cullis J.D.S., Gillis C-A, Bothwell M.L, Kilroy C, Packman A. and Hassan M. (2012): JGR-Biogeosciences

2012

Using the accumulation of CBD-extractable iron and clay content to estimate soil age on stable surfaces and nearby slopes, Front Range, Colorado. Dethier, D. P., Birkeland, P.W., and McCarthy, J. A. (2012): Geomorphology 173-174: 17-29

2012

Punctuated incision of streams bounding the Colorado Front Range from measurements of meteoric and in situ 10Be. Duhnforth, M., Anderson, R.S., Ward, D.J., and Blum, A.E. (2012): Journal of Geophysical Research(117):F01023

2012

Unsteady late Pleistocene incision of streams bounding the Colorado Front Range from measurements of meteoric and in situ 10Be. Dühnforth, M., R. S. Anderson, D. J. Ward and A. Blum (2012): JGR-Earth Surface 117, F01023

2012

Digging deeper to find unique microbial communities: The strong effect of depth on the structure of bacterial and archaeal communities in soil. Eilers K.G., Debenport S., Anderson S., Fierer N. (2012): Soil Biology and Biochemistry(50):58-65

2012

Common Critical Zone Observatory Infrastructure and Measurements. J. Chorover, F.N. Scatena, T. White, S. Anderson, A.K. Aufdenkampe, R.C. Bales, S.L. Brantley, G. Tucker. (2012): A Guide Prepared By CZO PIs, September 27, 2012 Cross-CZO National

2012

Water chemistry of surface waters affected by the Fourmile Canyon wildfire, Colorado, 2010–2011. McCleskey, R.B., Writer, J.H., and Murphy, S.F., (2012): U.S. Geological Survey Open-File Report 2012–1104, 11 p

2012

Effects of flow regimes on stream turbidity and suspended solids after wildfire, Colorado Front Range, USA In: Wildfire and Water Quality: Processes, Impacts and Challenges. Murphy, S.F., McCleskey, R.B. & Writer J.W., (2012): IAHS Publ. 354. IAHS Press. Wallingford, UK

2012

Impacts of Sampling Dissolved Organic Matter with Passive Capillary Wicks Versus Aqueous Soil Extraction. Perdrial J.N., Perdrial N., Harpold A., Gao X., Gabor R., LaSharr K., and Chorover J. (2012): Soil Science Society of America Journal, 76: 2019–2030 Cross-CZO

2012

Temporal variability in the diversity and composition of stream bacterioplankton communities. Portillo, M., Anderson S., and Fierer N. (2012): Environmental Microbiology

2011

Boulder Creek Critical Zone Observatory Annual Report 2011 . Anderson, S. (2011): Boulder Creek CZO, University of Colorado Boulder

2011

Seismic constraints on critical zone architecture, Boulder Creek Watershed, Colorado. Befus, K.M., Sheehan, A.F., Leopold, M., Anderson, S.P., and Anderson, R.S (2011): Vadose Zone Journal 10: 915-927

2011

Twelve testable hypotheses on the geobiology of weathering. Brantley, S.L., Megonigal, J.P., Scatena, F.N., Balogh-Brunstad, Z., Barnes, R.T., Bruns, M.A., Van Cappellen, P., Dontsova, K., Hartnett, H.E., Hartshorn, A.S., Heimsath, A., Herndon, E., Jin, L., Keller, C.K., Leake, J.R., McDowell, W.H., Meinzer, F.C., Mozdzer, T.J., Petsch, S, Pett-Ridge, J., Pregitzer, K.S., Raymond, P.A., Riebe, C.S., Shumaker, K., Sutton-Grier, A., Walter, R., and Yoo, K. (2011): Geobiology 9(2): 140-165, Cross-CZO National

2011

Mineralogic and Geochemical Changes from Alteration of Granitic Rocks, Boulder Creek Catchment, Colorado. Dethier, D.P. and Bove, D.J. (2011): Vadose Zone Journal 10: 858-866

2011

Reconstructing the Glacial History of Green Lakes Valley, North Boulder Creek, Colorado Front Range. Duhnforth M, and Anderson, R. (2011): Arctic, Antarctic, and Alpine Research 43: 527-542

2011

Landscape-Scale Variation in Soil Microbial Communities Across a Forested Watershed. Eilers, Kathryn. (2011): Thesis, University of Colorado, Master of Arts, Department of Ecology and Evolutionary Biology Cross-CZO

2011

Internal Structure of the Green Lake 5 Rock Glacier, Colorado Front Range, USA: . Leopold, M, Williams, M., Caine, N., Voelkel, J., and Dethier D. (2011): Permafrost and Periglac. Process. 22/2:107-119

2011

Characteristics of a palaeosol and its implications for the Critical Zone development, Rocky Mountain Front Range of Colorado, USA. Leopold, M., Voelkel, J., Dethier, D., Huber, J. & Steffems, M. (2011): Applied Geochemistry 26(S1): S72-S75.

2011

Evaluating the effects of wildfire on stream processes in a Colorado front range watershed, USA. Murphy, S.F., and Writer, J.H. (2011): Applied Geochemistry 26 (S1): S363-S364.

2011

Strong climate and tectonic control on plagioclase weathering in granitic terrain. Rasmussen C., Brantley S., Richter D.D., Blum A., Dixon J., and White A.F. (2011): Earth and Planetary Science Letters, 301(3-4): 521-530, Cross-CZO

2011

Solving a conundrum of a steady-state hillslope with variable soil depths and production rates, Bodmin Moor, UK . Riggins, S.G., Anderson, R.S., Anderson, S.P., and Tye, A.M. (2011): Geomorphology, 128: 73-84.

2011

Stream water chemistry along an elevation gradient from the Continental Divide to the Foothills of the Rocky Mountains. Williams, M.W., Barnes, R.T., Parman, J.N., Freppez, M., and Hood, E.W. (2011): Vadose Zone Journal 10: 900-919.

2010

Future Directions for Critical Zone Observatory (CZO) Science. Anderson, R.S., Anderson, S., Aufdenkampe, A.K., Bales, R., Brantley, S., Chorover, J., Duffy, C.J., Scatena, F.N., Sparks, D.L., Troch, P.A., Yoo, K. (2010): CZO Community, December 29, 2010 Cross-CZO National

2010

Applied geophysical characterization of the shallow subsurface: Towards quantifying recent landscape evolution and current processes in the Boulder Creek watershed, CO. Befus, Kevin (2010): Thesis, University of Colorado, Master of Science, Department of Geological Sciences

2010

Recent hydrologic change in a Colorado alpine basin: an indicator of permafrost thaw?. Caine, N (2010): Annals of Glaciology 51(56) ppp 130. 2010

2010

Hydrologic Control of the Nuisance Diatom, Didymosphenia germinata . Cullis J. (2010): Colorado Water 2 (3) 4-6

2010

Shifts in bacterial community structure associated with inputs of low molecular weight carbon compounds to soil. Eilers, K.G., Lauber, C L., Knight, R., Fierer N. (2010): Soil Biology & Biochemistry 42 (2010) 896-903

2010

Twentieth-century changes in the thickness and extent of Arapahoe Glacier, Front Range, Colorado. Haugen, B.D., Scambos, T.A., Pfeffer, W.T., and Anderson, R.S. (2010): Arctic, Antarctic, and Alpine Research 42 (2): 198-209.

2010

Mountain Permafrost - a valid archive to study climate change? Examples from the Rocky Mountains Front Range of Colorado, USA. Leopold, M., Voelkel, J., Dethier, D., Williams, M., and Caine, N. (2010): Nova acta Leopoldina, v. 112: 281-289.k

2010

Comparison of seasonal changes in fluorescent dissolved organic matter among aquatic lake and stream sites in the Green Lakes Valley. Miller, M.P., McKnight, D.M. (2010): Journal of Geophysical Research-Biogeosciences VOL. 115, G00F12

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

2010

Does climate change create distinctive patterns of landscape incision?. Wobus, C.W., Tucker, G.E., and Anderson, R.S. (2010): JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115, F04008. 2010