Search Results - "A. Park Williams"

Impact of anthropogenic climate change on wildfire across western US forests by Abatzoglou, John T., Williams, A. Park

“…Increased forest fire activity across the western continental United States (US) in recent decades has likely been enabled by a number of factors, including…”
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A westward extension of the warm pool leads to a westward extension of the Walker circulation, drying eastern Africa by Williams, A. Park, Funk, Chris

“…Observations and simulations link anthropogenic greenhouse and aerosol emissions with rapidly increasing Indian Ocean sea surface temperatures (SSTs). Over the…”
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Global Emergence of Anthropogenic Climate Change in Fire Weather Indices by Abatzoglou, John T., Williams, A. Park, Barbero, Renaud

“…Changes in global fire activity are influenced by a multitude of factors including land‐cover change, policies, and climatic conditions. This study uses 17…”
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Land–atmosphere feedbacks exacerbate concurrent soil drought and atmospheric aridity by Zhou, Sha, Williams, A. Park, Berg, Alexis M., Cook, Benjamin I., Zhang, Yao, Hagemann, Stefan, Lorenz, Ruth, Seneviratne, Sonia I., Gentine, Pierre

“…Compound extremes such as cooccurring soil drought (low soil moisture) and atmospheric aridity (high vapor pressure deficit) can be disastrous for natural and…”
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Global patterns of interannual climate–fire relationships by Abatzoglou, John T., Williams, A. Park, Boschetti, Luigi, Zubkova, Maria, Kolden, Crystal A.

“…Climate shapes geographic and seasonal patterns in global fire activity by mediating vegetation composition, productivity, and desiccation in conjunction with…”
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Global field observations of tree die-off reveal hotter-drought fingerprint for Earth’s forests by Hammond, William M., Williams, A. Park, Abatzoglou, John T., Adams, Henry D., Klein, Tamir, López, Rosana, Sáenz-Romero, Cuauhtémoc, Hartmann, Henrik, Breshears, David D., Allen, Craig D.

“…Earth’s forests face grave challenges in the Anthropocene, including hotter droughts increasingly associated with widespread forest die-off events. But despite…”
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Projected increases in intensity, frequency, and terrestrial carbon costs of compound drought and aridity events by Zhou, Sha, Zhang, Yao, Park Williams, A, Gentine, Pierre

“…Drought and atmospheric aridity pose large risks to ecosystem services and agricultural production. However, these factors are seldom assessed together as…”
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Contribution of anthropogenic warming to California drought during 2012-2014 by Williams, A. Park, Seager, Richard, Abatzoglou, John T., Cook, Benjamin I., Smerdon, Jason E., Cook, Edward R.

“…A suite of climate data sets and multiple representations of atmospheric moisture demand are used to calculate many estimates of the self‐calibrated Palmer…”
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Climate change is increasing the likelihood of extreme autumn wildfire conditions across California by Goss, Michael, Swain, Daniel L, Abatzoglou, John T, Sarhadi, Ali, Kolden, Crystal A, Williams, A Park, Diffenbaugh, Noah S

“…California has experienced devastating autumn wildfires in recent years. These autumn wildfires have coincided with extreme fire weather conditions during…”
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Climate change will accelerate the high-end risk of compound drought and heatwave events by Tripathy, Kumar P, Mukherjee, Sourav, Mishra, Ashok K, Mann, Michael E, Williams, A Park

“…Compound drought and heatwave (CDHW) events have garnered increased attention due to their significant impacts on agriculture, energy, water resources, and…”
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Climate-driven regime shifts in a mangrove–salt marsh ecotone over the past 250 years by Cavanaugh, Kyle C., Dangremond, Emily M., Doughty, Cheryl L., Williams, A. Park, Parker, John D., Hayes, Matthew A., Rodriguez, Wilfrid, Feller, Ilka C.

“…Climate change is driving the tropicalization of temperate ecosystems by shifting the range edges of numerous species poleward. Over the past few decades,…”
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Temperature as a potent driver of regional forest drought stress and tree mortality by Park Williams, A., Allen, Craig D., Macalady, Alison K., Griffin, Daniel, Woodhouse, Connie A., Meko, David M., Swetnam, Thomas W., Rauscher, Sara A., Seager, Richard, Grissino-Mayer, Henri D., Dean, Jeffrey S., Cook, Edward R., Gangodagamage, Chandana, Cai, Michael, McDowell, Nate G.

“…As the climate changes, drought may reduce tree productivity and survival across many forest ecosystems; however, the relative influence of specific climate…”
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The Curious Case of Projected Twenty-First-Century Drying but Greening in the American West by Mankin, Justin S., Smerdon, Jason E., Cook, Benjamin I., Williams, A. Park, Seager, Richard

“…Climate models project significant twenty-first-century declines in water availability over the American West from anthropogenic warming. However, the physical…”
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Rapid warming accelerates tree growth decline in semi-arid forests of Inner Asia by Liu, Hongyan, Park Williams, A., Allen, Craig D., Guo, Dali, Wu, Xiuchen, Anenkhonov, Oleg A., Liang, Eryuan, Sandanov, Denis V., Yin, Yi, Qi, Zhaohuan, Badmaeva, Natalya K.

“…Forests around the world are subject to risk of high rates of tree growth decline and increased tree mortality from combinations of climate warming and…”
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Climate Change Amplification of Natural Drought Variability: The Historic Mid-Twentieth-Century North American Drought in a Warmer World by Cook, Benjamin I., Seager, Richard, Williams, A. Park, Puma, Michael J., McDermid, Sonali, Kelley, Maxwell, Nazarenko, Larissa

“…In the mid-twentieth century (1948–57), North America experienced a severe drought forced by cold tropical Pacific sea surface temperatures (SSTs). If these…”
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Exceptional heat and atmospheric dryness amplified losses of primary production during the 2020 U.S. Southwest hot drought by Dannenberg, Matthew P., Yan, Dong, Barnes, Mallory L., Smith, William K., Johnston, Miriam R., Scott, Russell L., Biederman, Joel A., Knowles, John F., Wang, Xian, Duman, Tomer, Litvak, Marcy E., Kimball, John S., Williams, A. Park, Zhang, Yao

“…Earth's ecosystems are increasingly threatened by “hot drought,” which occurs when hot air temperatures coincide with precipitation deficits, intensifying the…”
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Tree-ring isotopes capture interannual vegetation productivity dynamics at the biome scale by Levesque, Mathieu, Andreu-Hayles, Laia, Smith, William Kolby, Williams, A. Park, Hobi, Martina L., Allred, Brady W., Pederson, Neil

“…Historical and future trends in net primary productivity (NPP) and its sensitivity to global change are largely unknown because of the lack of long-term,…”
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Projected increases in western US forest fire despite growing fuel constraints by Abatzoglou, John T., Battisti, David S., Williams, A. Park, Hansen, Winslow D., Harvey, Brian J., Kolden, Crystal A.

“…Abstract Escalating burned area in western US forests punctuated by the 2020 fire season has heightened the need to explore near-term macroscale forest-fire…”
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Forest responses to increasing aridity and warmth in the southwestern United States by Williams, A. Park, Allen, Craig D., Millar, Constance I., Swetnam, Thomas W., Michaelsen, Joel, Still, Christopher J., Leavitt, Steven W., MacDonald, Glen M.

“…In recent decades, intense droughts, insect outbreaks, and wildfires have led to decreasing tree growth and increasing mortality in many temperate forests. We…”
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Urbanization causes increased cloud base height and decreased fog in coastal Southern California by Williams, A. Park, Schwartz, Rachel E., Iacobellis, Sam, Seager, Richard, Cook, Benjamin I., Still, Christopher J., Husak, Gregory, Michaelsen, Joel

“…Subtropical marine stratus clouds regulate coastal and global climate, but future trends in these clouds are uncertain. In coastal Southern California (CSCA),…”
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