Browsing by Author "Weng, W."

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    Granular measures of agricultural land use influence lake nitrogen and phosphorus differently at macroscales
    Stachelek, Joseph; Weng, W.; Carey, Cayelan C.; Kemanian, Armen R.; Cobourn, Kelly M.; Wagner, Tyler K.; Weathers, Kathleen C.; Soranno, Patricia A. (2020-12)
    Agricultural land use is typically associated with high stream nutrient concentrations and increased nutrient loading to lakes. For lakes, evidence for these associations mostly comes from studies on individual lakes or watersheds that relate concentrations of nitrogen (N) or phosphorus (P) to aggregate measures of agricultural land use, such as the proportion of land used for agriculture in a lake's watershed. However, at macroscales (i.e., in hundreds to thousands of lakes across large spatial extents), there is high variability around such relationships and it is unclear whether considering more granular (or detailed) agricultural data, such as fertilizer application, planting of specific crops, or the extent of near-stream cropping, would improve prediction and inform understanding of lake nutrient drivers. Furthermore, it is unclear whether lake N and P would have different relationships to such measures and whether these relationships would vary by region, since regional variation has been observed in prior studies using aggregate measures of agriculture. To address these knowledge gaps, we examined relationships between granular measures of agricultural activity and lake total phosphorus (TP) and total nitrogen (TN) concentrations in 928 lakes and their watersheds in the Northeastern and Midwest U.S. using a Bayesian hierarchical modeling approach. We found that both lake TN and TP concentrations were related to these measures of agriculture, especially near-stream agriculture. The relationships between measures of agriculture and lake TN concentrations were more regionally variable than those for TP. Conversely, TP concentrations were more strongly related to lake-specific measures like depth and watershed hydrology relative to TN. Our finding that lake TN and TP concentrations have different relationships with granular measures of agricultural activity has implications for the design of effective and efficient policy approaches to maintain and improve water quality.
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    The Intermediate Neutrino Program
    Adams, C.; Alonso, J. R.; Ankowski, Artur M.; Asaadi, J. A.; Ashenfelter, J.; Axani, S. N.; Babu, K. S.; Backhouse, C.; Band, H. R.; Barbeau, P. S.; Barros, N.; Bernstein, A.; Betancourt, M.; Bishai, M.; Blucher, E.; Bouffard, J.; Bowden, N. S.; Brice, S.; Bryan, C.; Camilleri, Leslie; Cao, J.; Carlson, J.; Carr, R. E.; Chatterjee, A.; Chen, M.; Chen, S.; Chiu, M.; Church, E. D.; Collar, J. I.; Collin, G.; Conrad, Janet M.; Convery, M. R.; Cooper, R. L.; Cowen, D.; Davoudiasl, H.; Gouvea, A. D.; Dean, D. J.; Deichert, G.; Descamps, F.; DeYoung, T.; Diwan, M. V.; Djurcic, Zelimir; Dolinski, M. J.; Dolph, J.; Donnelly, B.; Dwyer, D. A.; Dytman, S.; Efremenko, Y.; Everett, L. L.; Fava, A.; Figueroa-Feliciano, E.; Fleming, B.; Friedland, A.; Fujikawa, B. K.; Gaisser, T. K.; Galeazzi, M.; Galehouse, D. C.; Galindo-Uribarri, A.; Garvey, G. T.; Gautam, S.; Gilje, K. E.; Gonzalez-Garcia, M.; Goodman, M. C.; Gordon, H.; Gramellini, E.; Green, M. P.; Guglielmi, A.; Hackenburg, R. W.; Hackenburg, A.; Halzen, F.; Han, K.; Hans, S.; Harris, D.; Heeger, K. M.; Herman, M.; Hill, R.; Holin, A.; Huber, Patrick; Jaffe, D. E.; Johnson, R. A.; Joshi, J.; Karagiorgi, Georgia S.; Kaufman, L. J.; Kayser, B.; Kettell, S. H.; Kirby, B. J.; Klein, J. R.; Kolomensky, Y. G.; Kriske, R. M.; Lane, C. E.; Langford, T. J.; Lankford, A.; Lau, K.; Learned, J. G.; Ling, J.; Link, Jonathan M.; Lissauer, D.; Littenberg, L.; Littlejohn, B. R.; Lockwitz, S.; Lokajicek, M.; Louis, W. C.; Luk, K.; Lykken, J.; Marciano, W. J.; Maricic, Jelena; Markoff, D. M.; Caicedo, D. A. M.; Mauger, C.; Mavrokoridis, K.; McCluskey, E.; McKeen, D.; McKeown, R.; Mills, G.; Mocioiu, I.; Monreal, B.; Mooney, M. R.; Morfin, J. G.; Mumm, P.; Napolitano, J.; Neilson, R.; Nelson, J. K.; Nessi, M.; Norcini, D.; Nova, F.; Nygren, D. R.; Orebi Gann, G. D.; Palamara, O.; Parsa, Z.; Patterson, R.; Paul, P.; Pocar, A.; Qian, X.; Raaf, J. L.; Rameika, R.; Ranucci, G.; Ray, H.; Reyna, D.; Rich, G. C.; Rodrigues, P.; Romero, E. R.; Rosero, R.; Rountree, S. D.; Rybolt, B.; Sanchez, Maria Cristina; Santucci, G.; Schmitz, D.; Scholberg, K.; Seckel, D.; Shaevitz, Marjorie Hansen; Shrock, R.; Smy, M. B.; Soderberg, M.; Sonzogni, A.; Sousa, A. B.; Spitz, Joshua; John, J. M. S.; Stewart, J.; Strait, J. B.; Sullivan, G.; Svoboda, R.; Szelc, A. M.; Tayloe, R.; Thomson, M.; Toups, M.; Vacheret, A.; Vagins, M. R.; Water, R. G. V. D.; Vogelaar, R. Bruce; Weber, M.; Weng, W.; Wetstein, M.; White, C.; White, B. R.; Whitehead, L.; Whittington, D. W.; Wilking, M. J.; Wilson, R. J.; Wilson, P.; Winklehner, D.; Winn, D. R.; Worcester, E.; Yang, L.; Yeh, M.; Yokley, Z. W.; Yoo, J.; Yu, B.; Yu, J.; Zhang, C. (2015-04-01)
    The US neutrino community gathered at the Workshop on the Intermediate Neutrino Program (WINP) at Brookhaven National Laboratory February 4-6, 2015 to explore opportunities in neutrino physics over the next five to ten years. Scientists from particle, astroparticle and nuclear physics participated in the workshop. The workshop examined promising opportunities for neutrino physics in the intermediate term, including possible new small to mid-scale experiments, US contributions to large experiments, upgrades to existing experiments, R&D plans and theory. The workshop was organized into two sets of parallel working group sessions, divided by physics topics and technology. Physics working groups covered topics on Sterile Neutrinos, Neutrino Mixing, Neutrino Interactions, Neutrino Properties and Astrophysical Neutrinos. Technology sessions were organized into Theory, Short-Baseline Accelerator Neutrinos, Reactor Neutrinos, Detector R&D and Source, Cyclotron and Meson Decay at Rest sessions.This report summarizes discussion and conclusions from the workshop.