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  • Paul Dirmeyer

Land Group Prominent in 6th Assessment

Working Group I's contribution to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) titled: Climate Change 2021 - The Physical Science Basis was made public on August 9th. It represents the latest summary of the state of the climate and likely consequences of climate change driven by mankind's impacts on the composition of the atmosphere and use of the land.

The report contains 30 citations of work by the COLA Land Group across its chapters: 19 with current members as authors and another 11 by former members. Half of the citations are for recent work, published since 2015. Diverse research by the Land Group spans the topics of the human influence on the climate system, water cycle changes, linking global to regional climate change, weather and climate extreme events, and regional impacts for risk assessment. The report also includes an Atlas and information on observational products and monsoons to which COLA Land Group members and alumni have contributed cited research.

The COLA Land Group is proud to have contributed to this vitally important effort. Climate change will have implications for this planet and its inhabitants for centuries. The better we can understand and document what is happening, the better we can mitigate and adapt to changes that are avoidable and changes that are now inevitable.

Papers cited:

Chen, L., and P. A. Dirmeyer, 2019: Global observed and modelled impacts of irrigation on surface temperature. Int. J. Climatol. 39, 2587–2600. doi: 10.1002/joc.5973.

Dirmeyer, P. A., X. Gao, M. Zhao, Z. Guo, T. Oki, and N. Hanasaki, 2006: GSWP-2: Multimodel analysis and implications for our perception of the land surface. Bull. Amer. Meteor. Soc., 87, 1381–1398. doi: 10.1175/BAMS-87-10-1381.

Dirmeyer, P. A., Y. Jin, B. Singh, and X. Yan, 2013: Trends in land-atmosphere interactions from CMIP5 simulations. J. Hydrometeor. 14, 829–849. doi: 10.1175/JHM-D-12-0107.1.

Dirmeyer, P. A., and S. Halder, 2017: Application of the land-atmosphere coupling paradigm to the operational Coupled Forecast System (CFSv2). J. Hydrometeor., 18, 85-108, doi: 10.1175/JHM-D-16-0064.1.

Dirmeyer, P. A., L. Chen, J. Wu, C.-S. Shin, et al., 2018: Verification of land-atmosphere coupling in forecast models, reanalyses and land surface models using flux site observations. J. Hydrometeor., 19, 375-392, doi: 10.1175/JHM-D-17-0152.1.

Fant, C., C. A. Schlosser, and K. Strzepek, 2016: The impact of climate change on wind and solar resources in southern Africa. Applied Energy, 161, 556–564, doi: 10.1016/j.apenergy.2015.03.042.

Gao, X., C. A. Schlosser, and E.R. Morgan, 2018: Potential impacts of climate warming and increased summer heat stress on the electric grid: a case study for a large power transformer (LPT) in the Northeast United States. Climatic Change, 147(1–2), 107–118, doi: 10.1007/s10584-017-2114-x.

Goswami, B.N., V. Venugopal, D. Sangupta, M.S. Madhusoodanan, and P.K. Xavier, 2006: Increasing trend of extreme rain events over India in a warming environment. Science, 314, 1442–1445, doi: 10.1126/science.1132027.

Kinter, J. L., P. A. Dirmeyer, et al., 2013: Revolutionizing climate modeling with Project Athena: A multi-institutional, international collaboration. Bull. Amer. Meteor. Soc. 94, 231– 245. doi: 10.1175/BAMS-D-11-00043.1.

Koster, R. D., Z. Guo, P. A. Dirmeyer, K. Mitchell, and M. J. Puma, 2009: On the nature of soil moisture in land surface models. J. Clim. 22, 4322–4335. doi: 10.1175/2009JCLI2832.1.

Koster, R. D., P. A. Dirmeyer, Z. Guo, et al. (2011). The second phase of the global land-atmosphere coupling experiment: Soil moisture contributions to subseasonal forecast skill. J. Hydrometeor. 12, 805–822. doi: 10.1175/2011JHM1365.1.

Kumar, S., V. Merwade, J.L. Kinter, and D. Niyogi, 2013: Evaluation of temperature and precipitation trends and long-term persistence in CMIP5 twentieth-century climate simulations. J. Climate, doi: 10.1175/jcli-d-12-00259.1.

Kumar, S., R. P. Allan, F. W. Zwiers, D. M. Lawrence, and P. A. Dirmeyer, 2015: Revisiting trends in wetness and dryness in the presence of internal climate variability and water limitations over land. Geophys. Res. Lett., 42, 10867–10875, doi:10.1002/2015gl066858.

Kumar, S., F. Zwiers, P. A. Dirmeyer, D. M. Lawrence, J. Sheffield, R. Shrestha, and A. Werner, 2016: Terrestrial contribution to the heterogeneity in hydrological changes under global warming. Water Resour. Res., 52, 3127–3142, doi: 10.1002/2016WR018607.

Kumar, S., J.L. Kinter, Z. Pan, and J. Sheffield, 2016: Twentieth century temperature trends in CMIP3, CMIP5, and CESM-LE climate simulations: Spatial-temporal uncertainties, differences, and their potential sources. J. Geophys. Res., 121, 9561–9575, doi: 10.1002/2015jd024382.

Kumar, S., M. Newman, Y. Wang, and B. Livneh, 2019: Potential reemergence of seasonal soil moisture anomalies in North America. Journal of Climate, 32, 2707–2734, doi: 10.1175/jcli-d-18-0540.1.

Livneh, B., and A. M. Badger, 2020: Drought less predictable under declining future snowpack. Nature Clim. Change 10, 452–458. doi: 10.1038/s41558-020-0754-8.

Marengo, J. A., V. Misra, et al., 2012: Recent developments on the South American monsoon system. Int. J. Climatol. 32, 1–21. doi: 10.1002/joc.2254.

Mueller, B., P. A. Dirmeyer, et al., 2013: Benchmark products for land evapotranspiration: LandFlux-EVAL multi-data set synthesis. Hydrol. Earth Sys. Sci., 17, 3707-3720, doi: 10.5194/hess-17-3707-2013.

Pan, M., A. K. Sahoo, et al., 2012: Multisource Estimation of Long-Term Terrestrial Water Budget for Major Global River Basins. J. Climate, 25, 3191–3206. doi: 10.1175/JCLI-D-11-00300.1.

Santanello, J. A., P. A. Dirmeyer, A. B. Tawfik, et al., 2018: Land–atmosphere interactions: The LoCo perspective. Bull. Amer. Meteor. Soc. 99, 1253–1272. doi: 10.1175/BAMS-D-17-0001.1.

Singh, A., S. Kumar, S. Akula, D.M. Lawrence, and D.L. Lombardozzi, 2020: Plant growth nullifies the effect of increased water-use efficiency on streamflow under elevated CO2 in the southeastern United States. Geophysical Research Letters, 47, e2019GL086940, doi: 10.1029/2019gl086940.

Tawfik, A. B., P. A. Dirmeyer, and J. A. Santanello, 2015: The heated condensation framework. Part II: Climatological behavior of convective initiation and land–atmosphere coupling over the conterminous United States, J. Hydrometeor., 16, 1946–1961, doi: 10.1175/JHM-D-14-0118.1.

van den Hurk, B., M. Best, P. A. Dirmeyer, A. Pitman, J. Polcher, and J. A. Santanello, 2011: Acceleration of land surface model development over a decade of glass. Bull. Amer. Meteor. Soc. 92, 1593–1600. doi: 10.1175/BAMS-D-11-00007.1.

Whittleston, D., S. E. Nicholson, C. A. Schlosser, and D. Entekhabi, 2017: Climate models lack jet-rainfall coupling over West Africa. J. Climate, 30, 4625-4632, doi: 10.1175/jcli-d-16-0579.1.

Xue, Y., P. A. Dirmeyer, Z. Guo, et al., 2010: Intercomparison and analyses of the climatology of the West African monsoon in the West African Monsoon Modeling and Evaluation project (WAMME) first model intercomparison experiment. Clim. Dyn. 35, 3–27. doi: 10.1007/s00382-010-0778-2.

Zhou, L., R. E. Dickinson, A. Dai, and P. A. Dirmeyer, 2010: Detection and attribution of anthropogenic forcing to diurnal temperature range changes from 1950 to 1999: Comparing multi-model simulations with observations. Clim.Dyn., doi: 10.1007/s00382-009-0644-2.

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