No ice in the Arctic Ocean for polar bears?

Dr. Laodong Guo

Professor
School of Freshwater Sciences (SFS)
University of Wisconsin-Milwaukee (UWM)
600 East Greenfield Avenue
Milwaukee, WI 53204, USA

Tel:     (414)-382-1700
Fax:    (414)-382-1705
E-mail: guol@uwm.edu

 

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Peer-reviewed publications since 2000

Total citations: >2,500 based on ISI web of knowledge or Scopus; H-index = 31 as defined by Ball (2005, Nature). See Dr. Guo's curriculum vitae for a complete publication list.  Papers with * are those with students. Click on Journals' link or pdf to download a specific article)

Year 2012 (and “in press")

119) Chen, M., Ma, Q., Guo, L., Qiu, Y., Li, Y., and Yang, W. The effect of lateral transport on 210Pb budget in the eastern Chukchi Sea. Deep-Sea Res. II, (revised)

118) Zhang, R., Chen, M., Guo, L., Ma, Q., Cao, J.P., Qiu, Y., and Li, Y. Variations in the isotope composition of particulate organic carbon and their relation to carbon dynamics in the western Arctic Ocean. Deep-Sea Res. II, (in press) (abstract or pdf file), doi:10.1016/j.dsr2.2011.05.005.

117) Stolpe, B., Guo, L., Shiller, A.M. and Aiken, G.R. 2012. Organic and iron-rich colloids in Alaskan rivers: 1. Variations in colloid size, characteristics and binding of trace elements. Geochim. Cosmochim. Acta (revised).

116) Stolpe, B., Guo, L. and Shiller, A.M. 2012. Organic and iron-rich colloids in Alaskan rivers: 2. Rare earth elements. Geochim. Cosmochim. Acta, (accepted)

115) Cai, Y., Guo, L., Wang, X, Mojzis, A. and Redalje, D. 2012. The source and distribution of dissolved and particulate organic matter in the Bay of St. Louis, the northern Gulf of Mexico. Estuarine, Coastal and Shelf Science, 96, 96-104, (abstract or pdf), doi:10.1016/j.ecss.2011.10.017.

114) Shiller, A.M., Shim, M.J., Guo, L., Bianchi, T.S., Smith, R. Duan, S. 2012. Hurricane Katrina impact on water quality in the east Pearl River, Mississippi. Journal of Hydrology, 414/415: 388-392, doi: 10.1016/j.jhydrol.2011.11.010.

113). Guo, L., Cai, Y., Belzile, C. and Macdonald, R. 2012. Sources and export fluxes of inorganic and organic carbon and nutrient species from the seasonally ice-covered Yukon River. Biogeochemistry,, 107(1-3): 187-206, doi:10.1007/s10533-010-9545-z (abstract or pdf file).

 

Year 2011

112) Douglas, T.A., Fortier, D., Shur, Y.L., Kanevskiy, M.Z., Guo, L., Cai, Y. and Bray, M.T. 2011. Biogeochemical and geocryological characteristics of wedge and thermokarst cave ice in the CRREL Permafrost Tunnel, Alaska. Permafrost and Periglacial Processes, 21(4), doi:10.1002/ppp709 (abstract or pdf file).

111) Ping, C.-L., G.J. Michaelson, L.D. Guo, M.T. Jorgenson, M. Kanevskiy, Y. Shur, F. Dou and J. Liang. 2011. Soil carbon and material flux across the eroding coastline of the Beaufort Sea, Alaska. JGR-Biogeosciences, 116, G02004, 12pp, doi:10.129/2010JG001588 (abstract or pdf file).

110) Xu, C., Santschi, P.H., Hung,C.-C., Zhang,S., Schwehr,K,A., Roberts,K.A., Guo, L.D., Gong, G.-C., Quigg, A., Long, R., Pinckney, J., Duan, S.W., Amon, R., and Wei, C.L.2011. Controls of Th-234 removal from the oligotrophic ocean by polyuronic acids and microbial activity. Marine Chemistry, 123, 111-126, doi:10.1016/j.marchem.2010.10.005.

 

Year 2010

109) Diercks, A.R., R.C. Highsmith, V.L. Asper, D.J. Joung, Z. Zhou, L. Guo, A.M. Shiller, S.B. Joye, A.P. Teske, N. Guinasso, T. L. Wade & S.E. Lohrenz. 2010. Characterization of subsurface polycyclic aromatic hydrocarbon at the Deepwater Horizon site. Geophysical Research Letters, 37, L20602, 6 PP, doi:10.129/2010GL045046.

108) Zhu, L., Guo, L., Gao, Z., Yin, G., Lee, B. and Wang, F. 2010. Source and distribution of lead in the surface sediments from the South China Sea as derived from Pb isotopes. Marine Pollution Bulletin, 60, 2144-2153, doi:10.1016/j.marpolbul.2010.07.026.

107) Hung, C.-C., Xu, C., Santschi, P. H., Zhang, S., Schwehr, K.A., Quigg, A., Guo, L., Gong, G.-C., Pinckney, J., Long, R., and Wei, C.-L. 2010. Comparative evaluation of sediment-trap and 234Th-derived POC fluxes from the upper oligotrophic waters in the Gulf of Mexico and the subtropical northwestern Pacific Ocean. Marine Chemistry, 121, 132-144, doi:10.1016/j.marchem.2010.03.011.

106) *Wang, X., Cai, Y. and Guo, L. 2010. Preferential removal of dissolved carbohydrates during estuarine mixing in the Bay of St Louis in the northern Gulf of Mexico.. Marine Chemistry, 119, 130-138,, doi:10.1016/j.marchem.2010.01.006 (see Abstract on line or pdf).

105) Stolpe, B., Guo, L. Shiller, A. and Hassellov, M. 2010. Size and composition of colloidal organic matter and Fe in the Mississippi and Pearl River as characterized by flow field-flow fractionation techniques. Marine Chemistry, 118: 119-228, doi: 10.1016/j.marchem.2009.11.007 (pdf online).

104) Dou, F., Yu, X., Ping, C.L., Michaelson, G., Guo, L. and Jorgenson, M. T. 2010. Spatial variation of tundra soil organic carbon along the coastline of northern Alaska. Geoderma, 154: 328-335. doi: 10.1016/j.geoderma.2009.10.020 (pdf online).

103) Zhang, J.-Z., Guo, L. and Fischer, C.R. 2010. Abundance and Chemical Speciation of Phosphorus in Sediments of the Mackenzie Delta, Chukchi Sea and Bering Sea: Importance of Detrital Apatite. Aquatic Geochemistry, 16: 353-371, doi: 10.1077/s10498-009-9081-4 (Abstract or pdf online).

Year 2009

102) Cooke, M.P., van Dongen, B. E., Talbot, H.M., Semiletov, I., Guo, L. and Gustafsson, O. 2009. Bacteriohopanepolyol biomarker composition of organic matter exported to the Arctic Ocean by seven of the major Arctic rivers. Organic Geochemistry, 40, 1151-1159, doi:10.1016/j.orggeochem.2009.07.014, (abstract or pdf)

101) Guo, L., White, D.M., Xu, C., and Santschi, P.H. 2009. Chemical and isotopic composition of HMW-DOM from the Mississippi River plume. Marine Chemistry, 114: 63-71 (Abstract or pdf)

100) McGuire, A.D., Anderson, L., Christensen, T.R., Dallimore, S., Guo, L., Hayes, D., Heimann, M., Macdonald, R. and Roulet, N. 2009. Sensitivity of the Carbon Cycle in the Arctic to Climate Change. Ecological Monographs, 79(4), 523-555, (Abstract or pdf). See also news release from the US Geological Survey for this review paper.

99) Cai, Y. and Guo, L. 2009. Abundance and variation of colloidal organic phosphorus in riverine, estuarine and coastal waters in the northern Gulf of Mexico. Limnology and Oceanography, 54(4): 1393-1402 (abstract or pdf).

98) *Xu, C., Guo, L., Ping, C.L., and White, D.M. 2009. Chemical and isotopic characterization of size-fractionated organic matter from cryoturbated soils, Northern Alaska. JGR-Biogeosciences, 114, G03002, doi:10.1029/2008JG000846 (Abstract or pdf).

97) Guo, L. and M.-Y. Sun. 2009. Isotope composition of organic matter in seawater. In: "Practical Guidelines for the Analysis of Seawater", O. Wurl, editor, Chapter 6, p97-123, Taylor and Francis Group, LLC, (pdf).

96) *Xu, C.H., Guo, L., Dou, F. and Ping, C.-L. 2009. Potential DOC production from size fractionated Arctic tundra soils, Alaska. Cold Regions Science and Technology, 55, 141-150, doi:10.1016/j.coldregions.2008.08.001 (Abstract or pdf).

Year 2008

95) Cai, Y., Guo, L., Douglas, T. and Whitledge, T. 2008. Seasonal variations in nutrient concentrations and speciation in the Chena River, Alaska. JGR-Biogeosciences, 113, G030035, doi:10.1029/2008JG000733 (Abstract or pdf).

94) Dou, F., Ping, C.-L., Guo, L. and Jorgenson, M.T. 2008. Estimating the impact of seawater on the production of soil water-extractable organic carbon during coastal erosion. Journal of Environmental Quality, 37(6), 2368-2374, doi:10.2134/jeq2007.0403 (Abstract or pdf).

93) Cai, Y., Guo, L. and Douglas, T. 2008. Temporary variations in organic carbon species and fluxes from the Chena River, Alaska. Limnology and Oceanography, 53(4): 1408-1419 (Abstract or pdf).

92) Elmquist, M., Semiletov, I., Guo, L. and Gustafsson, O. 2008. Pan-Arctic patterns in black carbon sources and fluvial discharges deduced from radiocarbon and PAH source apportionment markers in estuarine surface sediments. Global Biogeochemical Cycles, 22, GB2018, doi:10.1029/2007GB002994 (Abstract or pdf).

91) Zou, L., Guo, L., Sun, B.W. and Sun, M.Y. 2008. Origins of high-molecular-weight dissolved organic matter in the Middle Atlantic Bight: Clue from lipids and molecular d13C ratio. The Open Oceanography Journal, 2, 1-5 (Abstract or pdf).

90) Hung, C.-C., Moran, S. B., Cochran, J. K., Guo, L., and Santschi. P.H. 2008. Comment on: “How accurate are 234Th measurements in seawater based on the MnO2-impregnated cartridge technique? by Pinghe Cai et al.”, Geochemistry Geophysics Geosystems, 9, Q02009, doi10.1029/2007GC001770 (Abstract or pdf).

 

Year 2007

89) Guo, L., Warnken, K.W. and Santschi, P.H. 2007. Retention behavior of dissolved uranium during ultrafiltration, implications for colloidal U in surface waters. Marine Chemistry, 107(2), 156-166, (Abstract or pdf).

88) Guo, L., Ping, C.L., Macdonald, R.W. 2007. Mobilization pathways of organic carbon from permafrost to arctic rivers in a changing climate. Geophys. Res. Lett., 34(13), L13603, doi10.1029/2007GL030689, (Abstract or pdf).

87) Gueguen, C., Guo, L. Yamamoto-Kawai, M. and Tanaka, N. 2007. Colored dissolved organic matter dynamics across the shelf/basin interfaces in the western Arctic Ocean. J. Geophys. Res., 112(C05), C05038, doi10.1029/2006JC003584, (Abstract or pdf).

86) Guo, L. and Santschi, P.H. 2007. Ultrafiltration and its applications to sampling and characterization of aquatic colloids. In "Environmental Colloids and Particles: Behaviour, Separation and Characterisation," Wilkinson, K. and Lead, J. (Eds), Chapter 4, International Union of Pure and Applied Chemistry (IUPAC) Series on Analytical and Physical Chemistry of Environmental Systems, John Wiley, pp159-221 (pdf).

Year 2006

85) *Wang, D., Henrichs, S.M. and Guo, L. 2006. Distributions of nutrients, dissolved organic carbon and carbohydrates in the western Arctic Ocean. Continental Shelf Res., 26 (14), 1654-1667 (Abstract or pdf).

84) Zou, L., Sun, M.-Y. and Guo, L. 2006. Temporal variations of organic carbon inputs into the upper Yukon River: Evidence from fatty acids and their stable carbon isotopic composition in dissolved, colloidal and particulate phases. Organic Geochemistry, 37(8), 944-956 (Abstract or pdf).

83) Guo, L., and Macdonald, R.W. 2006. Source and transport of terrigenous organic matter in the upper Yukon River: evidence from isotope (13C, 14C and 15N) composition of dissolved, colloidal and particulate phases. Global Biogeochemical Cycles, 20, GB2011, doi: 10.1029/2005GB002593, (Abstract or pdf).

82) Santschi, P.H., Murray, J.W., Baskaran, M.,Benitez-Nelson, C., Guo, L., Hung, C.-C., Lamborg, C., Moran, B., Passow, U., and Roy-Barman, M. 2006. Thorium speciation in seawater. Marine Chemistry, 100, 250-268 (Abstract or pdf).

81) Buesseler, K. O., Benitez-Nelson, C., Moran, S. B., Burd, A., Charette, M., Cochran, J. K., Coppola, L., Fisher, N., Fowler, S. W., Gardner, W., Guo, L. Gustafsson, O., Lamborg, C., Masque, P., Miquel, J. C., Passow, U., Santschi, P.H., Savoye, N., Stewart, G., and Trull, T. 2006. An assessment of particulate organic carbon to thorium-234 ratios in the ocean and their impact on the application of 234Th as a POC flux proxy. Marine Chemistry, 100, 213-233, (Abstract or pdf).

80) Chen, M., Guo, L., Ma, Q., Qiu, Y.S., Zhang, R., Lv, E., and Huang, Y.P. 2006. Zonal patterns of d13C, d15N and 210Po in the North Pacific Ocean. Geophys. Res. Lett., 33(4), L04609, doi: 10.1029/2005GL025186 (Abstract or pdf).

79) Gueguen, C., Guo, L., Wang, D. Tanaka, N, and Hung, C.-C. 2006. Chemical characteristics and origin of dissolved organic matter in the Yukon River. Biogeochemistry, 77, 139-155 (Abstract or pdf).

78) Belzile, C. and Guo, L.2006. Optical properties of low molecular weight and colloidal organic matter: Application of the ultrafiltration permeation model to DOM absorption and fluorescence. Marine Chemistry, 98, 183-196, (Abstract or pdf).

Year 2005

  • Gueguen, C., Guo, L., Tanaka, N. 2005. Distributions and characteristics of colored dissolved organic matter in he western Arctic Ocean.  Continental Shelf Res., 25(10): 1195-1207 (abstract, or pdf).

Year 2004

  • Guo, L. Semiletov, I., Gustafsson, O., Ingri, J. Andersson, P. Dudarev, O. White, D. 2004. Characterization of Siberian Arctic estuarine sediments: Implications for terrestrial organic carbon export. Global Biogeochemical Cycles, 18(1), GB1036, doi: 10.1029/2003GB002087, (abstract or pdf).
  • Guo, L., Zhang, J.-Z., Gueguen, C. 2004. Speciation and fluxes of nutrients (N, P, Si) from the upper Yukon River. Global Biogeochemical Cycles, 18(1), GB1038, doi: 10.1029/2003GB002151 (abstract or pdf).
  • Tanaka, T., Guo, L., Deal, C., Tanaka, N., Whitledge, T. and Murata, A. 2004. Nitrogen deficiency in a well oxygenated cold bottom water over the Bering Sea Shelf: Influence of sedimentary denitrification.  Continental Shelf Res., 24: 1271-1283 (Abstract or pdf).
  • Hung, C.-C., Guo, L., Roberts, K. A. and Santschi, P.H. 2004. Upper ocean carbon export fluxes determined by Th-234 and sediment traps in the Gulf of Mexico. Geochemical Journal, 38: 601-611 (abstract, or pdf file).
  • Guo, L., Tanaka, T., Wang, D., Tanaka, N. and Murata, A. 2004. Distributions, speciation and stable isotope composition of  organic matter in the eastern Bering Sea.  Marine Chemistry, 91: 211-226, (Abstract or pdf).
  • Chen, M., Wang, W.-X. and Guo, L. 2004. Phase partitioning and solubility of Fe in seawater controlled by dissolved organic matter. Global Biogeochemical Cycles, 18 (4), GB4013, doi: 10.10.29/2003GB002160 (Abstract or pdf).

Year 2003

  • Guo, L., Tanaka, N., Schell, D. M.  Santschi, P.H. 2003. Nitrogen and carbon isotopic composition of high-molecular-weight dissolved organic matter in marine environments. Mar. Ecol. Prog. Ser., 252: 51-60 (abstract or pdf).
  • Hung, C.-C., Guo, L., Shultz, G., Pinckney, J. and Santschi, P.H. 2003. Production and fluxes of carbohydrate species in the Gulf of Mexico. Global Biogeochemical Cycles, 17(2), 1055, doi: 10.1029/2002GB001988 (abstract or pdf).
  • Chen, M.,  Dei, R.C.H., Wang, W.-X. and Guo, L. 2003. Marine diatom uptake of iron bound with natural colloids of different origins. Marine Chemistry, 81(3/4): 177-189 (Abstract or pdf).
  • Hung, C.-C., Guo, L. Santschi, P. H. Alvarado, N. and Haye, J. 2003. Distributions of carbohydrate species in the Gulf of Mexico.  Marine Chemistry, 81(3/4): 119-135 (Abstract or pdf).
  • Guo, L., Lehner, J.K. White, D.M. and Garland, D. S. 2003. Heterogeneity of natural organic matter from the Chena River, Alaska. Water Research, 37(5): 1015-1022 (Abstract or pdf).
  • Chen, M., Huang, Y., Cai, P, and Guo, L. 2003. Particulate organic carbon export fluxes in the Canada Basin and Bering Sea as derived from 234Th/238U disequilibria.  Arctic,  56(1): 32-44 (Abstract or pdf).
  • Santschi, P. H., Hung, C.C., Shultz, G., Alvarado-Quiroz, N., Guo, L., Pinckney, J. and Walsh, I. 2003. Control of acid polysaccharide production and 234Th and POC export fluxes by marine organisms.  Geophysical Research  Letters, 30(2), 1044, doi: 10.1029/GL016046 (abstract or pdf,).

Year 2002

  • Guo, L., Chen, M. and Gueguen, C. 2002. Control of Pa/Th ratio by particulate chemical composition in the ocean.  Geophysical Research  Letters, 29: (20), 1961, doi:10.1029/2002GL015666 (abstract or pdf).
  • Santschi, P. H., Roberts, K. A. and Guo, L. 2002. The organic nature of colloidal actinides (239,240Pu and 241Am) transported in surface water environments. Environmental Science & Technology. 36: 3711-3719 (abstract or pdf).
  • Guo, L. Hung, C.C. Santschi, P. H. and Walsh, I. D. 2002. Th-234 scavenging and its relationship to acid polysaccharide abundance in the Gulf of Mexico. Marine Chemistry 78: 103-119 (abstract or pdf).
  • Guo, L., Santschi, P. H. and Ray, S. 2002. Metal partitioning between dissolved and particulate phases and its relation with bioavailability to American oysters. Marine Environmental  Research, 54: 49-64 (abstract or pdf).
  • Chen, M., Huang, Y., Guo, L., Cai, P., Yang, W., Liu, G. & Qiu, Y. 2002.  Biological productivity and carbon cycling in the Arctic Ocean. Chinese Science Bulletin,  47(12): 1037-1040 (abstract or pdf).
  • Quigley, M. S., Santschi, P. H., Hung, C., Guo, L. and  Honeyman, B. D. 2002. Importance of acid polysaccharides for 234Th complexation to marine organic matter. Limnology and Oceanography, 47(2): 367-377 (abstract or pdf).
  • Cai, P., Huang Y., Chen, M., Guo, L., Liu, G., and Qiu, Y. 2002. New production based on 228Ra-derived nutrient budgets and 228,234Th-estimated POC export at the intercalibration station in the South China Sea. Deep-Sea Research  I, 49(1): 53-66 (abstract or pdf).

Year 2001

  • Quigley, M. S., Santschi, P. H., Guo, L. and Honeyman, B. D. 2001. Sorption irreversibility and coagulation behavior of 234Th with marine organic matter. Marine Chemistry, 76(1/2): 27-45 (abstract or pdf).
  • Guo, L. Hunt, B. J., Santschi, P. H. and Ray, S. 2001. Effect of dissolved organic matter on the metal uptake by American oysters (Crassostrea virginica). Environmental Science & Technology, 35(5): 885-893 (abstract or pdf).
  • Wang, W. and Guo, L. 2001. Production of colloidal organic carbon and trace metals by phytoplankton decomposition. Limnology and Oceanography, 46(2): 278-286 (abstract or pdf).
  • Santschi, P. H., Guo, L., Wen, L. 2001. Box coring artifacts in sediments affected by a waste water outfall. Marine Pollution  Bulletin, 42(4): 267-272 (pdf).
  • Guo, L., Hunt, B.J., Santschi, P. H. 2001. Ultrafiltration behavior of major ions (Na, Ca, Mg, F, Cl, SO4) in natural waters. Water Research, 35 (6): 1500-1508 (pdf).
  • Santschi, P. H., Guo, L., Asbill, S., Allison, M. and Wen, L., 2001. Accumulation rates of sediments and organic carbon on the Palos Verdes Shelf based on radioisotopic tracers (137Cs,239, 240Pu,210Pb,234Th & 14C). Marine Chemistry, 73: 125-152 (abstract or pdf).
  • Santschi, P. H., Wen,- L. and Guo, L. 2001. Trace metals and organic carbon transport and diagenesis in Palos Verdes shelf sediments affected by a sewage outfall. Marine Chemistry, 73: 153-171 (abstract or pdf).

Year 2000

  • Guo, L and Santschi P. H. 2000. Sedimentary source of old high molecular weight dissolved organic carbon from the ocean margin benthic nepheloid layer. Geochim. Cosmochim. Acta, 64:651-660 (Abstract or pdf).
  • Wang, W. and Guo, L. 2000. Influence of natural colloids on metal bioavailability to two marine bivalves. Environ. Sci. Technol., 34: 4571-4576 (abstract or pdf).
  • Mitra, S.; Bianchi, T. S.; Guo, L. and Santschi, P. H. 2000. Terrestrially-derived dissolved organic matter in the Chesapeake Bay and the Middle Atlantic Bight. Geochim. Cosmochim. Acta, 64: 3547-3557 (pdf).
  • Guo, L., Warnken, K. W. and Santschi, P. H. 2000. Trace metal composition of colloidal organic matter in marine environments. Marine Chemistry, 70(4): 257-275 (pdf).
  • Wang, W. and Guo L, 2000. Bioavailability of colloidal-bound metals to marine plankton. Mar. Ecol. Prog. Ser., 202: 41-49 (abstract or pdf).
  • Chen, M., Guo, L., Huang, Y. Gao, Z., Cai, Y. and Cai, M. 2000. Study of colloidal uranium, thorium, radium isotopes and organic carbon in seawater. Acta Oceanologica Sinica, 22(5): 51-59 (pdf). 
  • Guo, L., Wen, L., Tang, D., and Santschi, P. H. 2000. Re-examination of cross flow ultrafiltration for sampling aquatic colloids: evidence from molecular probes. Marine Chemistry, 69: 75-90 (abstract or pdf).

See the complete publication list in Dr. Guo's CV or check at ISI web of Knowledge under author of Guo LD or Guo L using the following combined addresses (Stennis Space Ctr or 99775 or 77551 or 77553 or 77710 or Dept Biol/Hong Kong). You could down load a pdf file for a specific paper from www.sciencedirect.com (or ScienceDirect Web Edition) and other publisher's wensites (such as AGU, ACS, ASLO etc) or send him an e-mail for a reprint.

 

Figure

Relationsgip between delta-14C and C/N ratio in colloidal organic matter (COM)  from marine environments (from Guo et al., 1996, Limnology and Oceanography,41: 1242-1252, pdf file)


From Guo et al. (2004), Speciation and fluxes of nutrients (N, P, Si) from the upper Yukon River, Global Biogeochemical Cycles, 18(1), GB1038 (pdf).

 

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Last updated:  2011