Research Publications

Publications by Mark Williams

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John Knowles, Peter D. Blanken, Mark Williams 2016: Wet meadow ecosystems contribute the majority of overwinter soil respiration from snow-scoured alpine tundra. Journal of Geophysical Research: Biogeosciences, 121(4): 1118-1130. DOI: 10.1002/2015JG003081

Rory CowieMark Williams, Wireman, M., Runkel, R. L. 2014: Use of natural and applied tracers to guide targeted remediation efforts in an acid mine drainage system, Colorado Rockies, USA. Water, 6(4): 745-777. DOI: 10.3390/w6040745

Xie, M., Mladenov, N., Mark Williams, Neff, J. C., Wasswa, J., Hannigan, M. P. 2017: Water soluble organic aerosols in the Colorado Rocky Mountains, USA: Composition, sources and optical properties. Scientific Reports, 6: article 39339. DOI: 10.1038/srep39339

Balestrini, R., Delconte, C. A., Sacchi, E., Wilson, A. M., Mark Williams, Cristofanelli, P., Putero, D. 2016: Wet deposition at the base of Mt Everest: Seasonal evolution of the chemistry and isotopic composition. Atmospheric Environment, 146(SI): 100-112. DOI: 10.1016/j.atmosenv.2016.08.056

Max Berkelhammer, David C. Noone, Tony E. Wong, Sean P. Burns, John Knowles, Aleya Kaushik, Peter D. Blanken, Mark Williams 2016: Convergent approaches to determine an ecosystem's transpiration fraction. Global Biogeochemical Cycles, 30(6): 933-951. DOI: 10.1002/2016GB005392

Timothy KittelMark Williams, Chowanski, K., Hartman, M., Ackerman, T., Losleben, M., Blanken, P. D. 2016: Contrasting long-term alpine and subalpine precipitation trends in a mid-latitude North American mountain system, Colorado Front Range, USA. Plant Ecology & Diversity, 8(5-6): 607-624. DOI: 10.1080/17550874.2016.1143536

Mark WilliamsAlana Wilson, Tshering, D., Thapa, P., Kayastha, R. B. 2016: Using geochemical and isotopic chemistry to evaluate glacier melt contributions to the Chamkar Chhu (river), Bhutan. Annals of Glaciology, 57(71): 339-348. DOI: 10.3189/2016AoG71A068

Alana WilsonMark Williams, Kayastha, R. B., Racoviteanu, A. 2016: Use of a hydrologic mixing model to examine the roles of meltwater, precipitation and groundwater in the Langtang River basin, Nepal. Annals of Glaciology, 57(71): 155-168. DOI: 10.3189/2016AoG71A067

Racoviteanu, A. E., Arnaud, Y., Mark WilliamsWilliam F. Manley 2015: Spatial patterns in glacier characteristics and area changes from 1962 to 2006 in the Kanchenjunga-Sikkim area, eastern Himalaya. Cryosphere, 9(2): 505-523. DOI: 10.5194/tc-9-505-2015

Barnes, R. T., Mark Williams, Parman, J. N., Hill, K., T. Nelson Caine 2014: Thawing glacial and permafrost features contribute to nitrogen export from Green Lakes Valley, Colorado Front Range, USA. Biogeochemistry, 117(2-3): 413-430. DOI: 10.1007/s10533-013-9886-5

Leopold, M., Völkel, J., Dethier, D. P., Mark Williams 2014: Changing mountain permafrost from the 1970s to today: Comparing two examples from Niwot Ridge, Colorado Front Range, USA . Zeitschrift für Geomorphologie, Supplementary Issues, 58(1): 137-157. DOI: 10.1127/0372-8854/2013/S-00129

Mark Williams 2013: The status of glaciers in the Hindu Kush-Himalayan region. Mountain Research and Development, 33(1): 114-115. DOI: 10.1659/mrd.mm113

Racoviteanu, A. E., Armstrong, R., Mark Williams 2013: Evaluation of an ice ablation model to estimate the contribution of melting glacier ice to annual discharge in the Nepal Himalaya. Water Resources Research, 49(9): 5117-5133. DOI: 10.1002/wrcr.20370

Goss, N. R., Natalie Mladenov, Seibold, C., Chowanski, K., Seitz, L., Wellemeyer, T. B., Mark Williams 2013: Quantifying particulate matter deposition in Niwot Ridge, Colorado: Collection of dry deposition using marble inserts and particle imaging using the FlowCAM. Atmospheric Environment, 80: 549-558. DOI: 10.1016/j.atmosenv.2013.08.037

Gutmann, E. D., Larson, K. M., Mark Williams, Nievinski, F. G., Zavorotny, V. 2012: Snow measurement by GPS interferometric reflectometry: An evaluation at Niwot Ridge, Colorado. Hydrologic Processes, 26(19): 2951-2961. DOI: 10.1002/hyp.8329

Freppaz, M., Mark WilliamsTim Seastedt, Filippa, G. 2012: Response of soil organic and inorganic nutrients in alpine soils to a 16-year factorial snow and N-fertilization experiment, Colorado Front Range, USA. Applied Soil Ecology, 62: 131-141. DOI: 10.1016/j.apsoil.2012.06.006

Jepsen, S. M., Noah P. MolotchMark Williams, Rittger, K. E., Sickman, J. O. 2012: Interannual variability of snowmelt in the Sierra Nevada and Rocky Mountains, United States: Examples from two alpine watersheds. Water Resources Research, 48: W02529. DOI: 10.1029/2011WR011006

Gao, J., Mark Williams, Fu, X.-D., Wang, G.-Q., Gong, T. L. 2012: Spatiotemporal distribution of snow in eastern Tibet and the response to climate change. Remote Sensing of Environment, 121: 1-9. DOI: 10.1016/j.rse.2012.01.006

Darrouzet-Nardi, A., Erbland, J., Bill Bowman, Savarino, J., Mark Williams 2012: Landscape-level nitrogen import and export in an ecosystem with complex terrain, Colorado Front Range. Biogeochemistry, 109(1-3): 271-285. DOI: 10.1007/s10533-011-9625-8

Robertson, G. P., Collins, S. L., Foster, D. R., Brokaw, N., Ducklow, H. W., Gragson, T. L., Gries, C., Hamilton, S. K., McGuire, A. D., Moore, J. C., Stanley, E. H., Waide, R. B., Mark Williams 2012: Long-Term Ecological Research in a human-dominated world. BioScience, 62(4): 342-353. DOI: 10.1525/bio.2012.62.4.6

Racoviteanu, A., Mark Williams 2012: Decision tree and texture analysis for mapping debris-covered glaciers in the Kangchenjunga area, eastern Himalaya. Remote Sensing, 4(10): 3078-3109. DOI: 10.3390/rs4103078

Vaux, H. J., Jr., Balk, D., Cook, E. R., Gleick, P., Lau, W. K.-M., Levy, M., Malone, E. L., Mcdonald, R., Shindell, D., Thompson, L. G., Wescoat, J. L., Jr., Mark Williams 2012: Himalayan glaciers: Climate change, water resources, and water security. National Academies Press, 143 pp.

de Jong, C., Gürer, I., Rimmer, A., Shaban, A., Mark Williams 2012: Climate and hydrology. In Vogiatzakis, I., Mediterranean Mountain Environments. Wiley Blackwell, 87-114.

Freppaz, M., Filippa, G., Corti, G., Cocco, S., Mark Williams, Zanini, E. 2012: Soil properties on ski runs. In Rolando, A. and Rixen, C., The Impact of Skiing on Mountain Environments. Bentham Publishers, 45-64.

Leopold, M., Mark WilliamsT. Nelson Caine, Vlkel, J., Dethier, D. 2011: Internal structure of the Green Lake 5 Rock Glacier, Colorado Front Range, USA. Permafrost and Periglacial Processes, 22(2): 107 119, DOI: 10.1002/ppp.706

Schmidt, S. K., Lynch, R. C., King, A. J., Karki, D., Robeson, M. S., Nagy, L., Mark Williams, Mitter, M. S., Freeman, K. R. 2011: Phylogeography of microbial phototrophs in the Dry Valleys of the high Himalayas and Antarctica. Proceedings of the Royal Society B Biological Sciences, 278 (1706): 702 708, DOI: 10.1098/rspb.2010.1254

Mark Williams, Barnes, R. T., Parman, J. N., Freppaz, M., Hood, E. 2011: Stream water chemistry along an elevational gradient from the Continental Divide to the foothills of the Rocky Mountains. Vadose Zone Journal, 10(3): 900 914. DOI: 10.2136/vzj2010.0131

Rory CowieMark WilliamsT. Nelson Caine, Michel, R. 2010: Estimated residence time of two snowmelt dominated catchments, Boulder Creek Watershed, Colorado. Logan, Utah: Proceedings of the Western Snow Conference, 3-10.

Filippa, G., Freppaz, M., Mark Williams, Zanini, E. 2010: Major element chemistry in inner alpine snowpacks (Aosta Valley region, NW Italy). Cold Regions Science and Technology, 64(2) Spec. Issue: 158 166, DOI: 10.1016/j.coldregions.2010.07.005

Freppaz, M., Godone, D., Filippa, G., Maggioni, M., Lunardi, S., Mark Williams, Zanini, E. 2010: Soil erosion caused by snow avalanches: a case study in the Aosta Valley (NW Italy). Arctic,. Antarctic, and Alpine Research, 42(4): 412 421, DOI: 10.1657/1938-4246-42.4.412

Leopold, M., Voelkel, J., Dethier, D., Mark WilliamsT. Nelson Caine 2010: Mountain permafrost: a valid archive to study climate change? Examples from the Rocky Mountains Front Range of Colorado, USA. Nova Acta Leopoldina, 112(384): 281 289.

Petrzelka, J., Mark Williams, Zukiewicz, L. 2010: Dust on snow, ice column formation, and meltwater flow paths at Niwot Ridge, Colorado. Logan, Utah: Proceedings of the Western Snow Conference, 49 57.

Mark Williams, Erickson, T. A., Petrzelka, J. L. 2010: Visualizing meltwater flow through snow at the centimetre-to-metre scale using a snow guillotine. Hydrological Processes, 24(15): 2098 2110, DOI: 10.1002/hyp.7630

Peter D. Blanken, Mark Williams, Sean P. Burns, Russell K. Monson, John Knowles, Kurt Chowanski, Todd Ackerman 2009: A comparison of water and carbon dioxide exchange at a windy alpine tundra and subalpine forest site near Niwot Ridge, Colorado. Biogeochemistry, 95(1): 61-76. DOI: 10.1007/s10533-009-9325-9

Bowling, D. R., Massman, W. J., Schaeffer, S. M., Burns, S. P., Monson, R. K., Mark Williams 2009: Biological and physical influences on the carbon isotope content of CO2 in a subalpine forest snowpack, Niwot Ridge, Colorado. Biogeochemistry, 95(1): 37 59, DOI: 10.1007/s10533-008-9233-4

Larson, K. M., Gutmann, E. D., Zavorotny, V. U., Braun, J. J., Mark Williams, Nievinski, F. G. 2009: Can we measure snow depth with GPS receivers?. Geophysical Research Letters, 36: L17502, DOI: 10.1029/2009GL039430

Maggioni, M., Freppaz, M., Piccini, P., Mark Williams, Zanini, E. 2009: Snow cover effects on glacier ice surface temperature. Arctic, Antarctic, and Alpine Research, 41(3): 323-329, DOI: 10.1657/1938-4246-41.3.323

Matt MillerDiane M. McKnight, Chapra, S. C., Mark Williams 2009: A model of degradation and production of three pools of dissolved organic matter in an alpine lake. Limnology and Oceanography, 54(6): 2213-2227.

Nanus, L., Mark Williams, Campbell, D. H., Tonnessen, K. A., Blett, T., Clow, D. W. 2009: Assessment of lake sensitivity to acidic deposition in national parks of the Rocky Mountains. Ecological Applications, 19(4): 961 973.

Mark Williams, Seibold, C., Chowanski, K. 2009: Storage and release of solutes from a subalpine seasonal snowpack: soil and stream water response, Niwot Ridge, Colorado. Biogeochemistry, 95(1): 77 94, DOI: 10.1007/s10533-009-9288-x

Marshall, J. D., Blair, J. M., Peters, D. P. C., Okin, G., Rango, A., Mark Williams 2008: Predicting and understanding ecosystem responses to climate change at continental scales. Frontiers in Ecology and the Environment, 6(5): 273-280. DOI: 10.1890/070165

Bebbington, A., Mark Williams 2008: Water and mining conflicts in Peru. Mountain Research and Development, 28(3/4):190 195. DOI: 10.1659/mrd.1039

Li, X. G., Mark Williams 2008: Snowmelt runoff modelling in an arid mountain watershed, Tarim Basin, China. Hydrological Processes, 22(19): 3931 3940. DOI: 10.1002/hyp.7098

Lazar, B., Mark Williams 2008: Climate change in western ski areas: Potential changes in the timing of wet avalanches and snow quality for the Aspen ski area in the years 2030 and 2100. Cold Regions Science and Technology, 51(2-3): 219 228. DOI: 10.1016/j.coldregions.2007.03.015

Litaor, M. I., Mark WilliamsTim Seastedt 2008: Topographic controls on snow distribution, soil moisture, and species diversity of herbaceous alpine vegetation, Niwot Ridge, Colorado. Journal of Geophysical Research Biogeosciences, 113: G02008. DOI: 10.1029/2007JG000419

Noah P. Molotch, Meixner, T., Mark Williams 2008: Estimating stream chemistry during the snowmelt pulse using a spatially distributed, coupled snowmelt and hydrochemical modeling approach. Water Resources Research, 44: W11429. DOI: 10.1029/2007WR006587

Nanus, L., Mark Williams, Campbell, D. H., Elliott, E. M., Kendall, C. 2008: Evaluating regional patterns in nitrate sources to watersheds in national parks of the Rocky Mountains using nitrate isotopes. Environmental Science and Technology, 42, 6487 6493. DOI: 10.1021/es800739e

Racoviteanu, A., Arnaud, Y., Mark Williams, Ordoez, J. 2008: Decadal changes in glacial parameters for the Cordillera Blanca, Peru derived from SPOT 5 satellite imagery and aerial photography. Journal of Glaciology, 54(186): 499 510. DOI: 10.3189/002214308785836922

Racoviteanu, A., Mark Williams, Barry, R. G. 2008: Optical remote sensing of glacier characteristics: A review with focus on the Himalaya. Sensors, 8(5): 3355 3383. DOI: 10.3390/s8053355

Bebbington, A., Connerty, M., Coxskill, W., O Shaughnessy, H., Mark Williams 2007: U.K. Mining in Peru: Threat to local communities and environment. 19 March 2007.

Noah P. Molotch, Blanken, P. D., Mark Williams, Turnipseed, A., Monson, R., Margulis, S. 2007: Estimating sublimation of intercepted and sub-canopy snow using eddy covariance systems. Hydrologic Processes, 21(12): 1567 1575. DOI: 10.1002/hyp.6719

Mark Williams, Knauf, M., Cory, R., T. Nelson Caine, Liu, F. J. 2007: Nitrate content and potential microbial signature of rock glacier outflow, Colorado Front Range. Earth Surface Processes, 32(7): 1032 1047. DOI: 10.1002/esp.1455

Mark Williams, Knauf, M., T. Nelson Caine, Liu, F., Verplanck, P. L. 2006: Geochemistry and source waters of rock glacier outflow, Colorado Front Range. Permafrost and Periglacial Processes, 17(1): 13-33. DOI: 10.1002/ppp.535

Hock, R., Rees, G., Mark Williams, Ramirez, E. 2006: Preface - Contribution from glaciers and snow cover to runoff from mountains in different climates. Hydrological Processes, Special Issue, 20 (10): 2089 2090.

Matt MillerDiane M. McKnight, Cory, R. M., Mark Williams, Runkel, R. L. 2006: Hyporheic exchange and fulvic acid redox reactions in an alpine stream/wetland ecosystem, Colorado Front Range. Environmental Science & Technology, 40(19): 5943-5949.

Monson, R. K., Burns, S. P., Mark Williams, Delany, A. C., Weintraub, M., Lipson, D. A. 2006: The contribution of beneath-snow soil respiration to total ecosystem respiration in a high-elevation, subalpine forest. Global Biogeochemical Cycles, 20 (3): article GB3030.

Monson, R. K., Lipson, D. L., Burns, S. P., Turnipseed, A. A., Delany, A. C., Mark Williams, Schmidt, S. K. 2006: Winter forest soil respiration controlled by climate and microbial community composition. Nature, 439 (7077): 711 714.

Erickson, T., Mark Williams, Winstral, A. 2005: Persistence of topographic controls on the spatial distribution of snow depth in rugged mountain terrain, Colorado, USA. Water Resources Research, 41 (4): article W04014. DOI: 10.1029/2003WR002973

Hood, E., Mark WilliamsDiane M. McKnight 2005: Sources of dissolved organic matter (DOM) in a Rocky Mountain stream using chemical fractionation and stable isotopes. Biogeochemistry, 74 (2): 231 255.

Vladimir G. KonovalovMark Williams 2005: Multi-year oscillations of glacier regime and river discharge in Central Asia in recent years. [in Russian]. Meteorology and Hydrology, 9.

Nanus, L., Campbell, D. H., Mark Williams 2005: Sensitivity of alpine and subalpine lakes to acidification from atmospheric deposition in the Grand Teton National Park and Yellowstone National Park, Wyoming. USGS Scientific Investigations Report 2005-5023.

Liu, F., Mark WilliamsT. Nelson Caine 2004: Source waters and flowpaths in a seasonally snow-covered catchment. Water Resources Research, 40: article W09401.

Ley, R., Mark Williams, Schmidt, S. 2004: Microbial population dynamics in an extreme environment: Controlling factors in talus soils at 3750m in the Colorado Rocky Mountains. Biogeochemistry, 68(3): 297-311.

Mark Williams, Hood, E., T. Nelson Caine 2003: Headwater catchments of the Boulder Creek Watershed. In Murphy, S. F., Verplanck, P. L., and Barber, L. B. (eds.), Comprehensive water quality of the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000. U.S. Geological Survey Water Resources Investigations Report 03-4045: 185-197.

Friend, D. A., Mark Williams 2003: Water quality as an input to development policy. In Taylor, L. and Ryall, A. (eds.), Sustainable Mountain Communities: Environmental Sustainability for Mountain Areas Impacted by Tourism and Amenity Migration. Banff, Canada: The Banff Centre, pp. 93-97

Hood, E., Diane M. McKnightMark Williams 2003: Sources and chemical character of dissolved organic carbon across an alpine/subalpine ecotone, Green Lakes Valley, Colorado Front Range, United States. Water Resources Research, 39(7): article 1188.

Hood, E. W., Mark WilliamsT. Nelson Caine 2003: Landscape controls on organic and inorganic nitrogen leaching across an alpine/subalpine ecotone, Green Lakes Valley, Colorado Front Range. Ecosystems, 6(1): 31-45.

Taylor, S., Feng, X. H., Mark Williams, McNamara, J. 2002: How isotopic fractionation of snowmelt affects hydrograph separation. Hydrological Processes, 16(18) spec. issue: 3683-3690. DOI: 10.1002/hyp.1232