Hawaiian Islands 500 Year Winter Rainfall and SLP Reconstructions Diaz, H.F.; Wahl, E.R.; Zorita, E.; Giambelluca, T.W.; Eischeid, J. Diaz, H.F. Wahl, E.R. Zorita, E. Giambelluca, T.W. Eischeid, J. Other Reconstruction Precipitation Reconstruction pressure earth science/paleoclimate/climate reconstructions|tree ring (age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,90% confidence interval lower bound,millimeter,Dec-Feb,climate reconstructions|tree ring,filtered,regression analysis,N,filtered with 21 year Gaussian; combination of predictor uncertainty and calibration uncertainty; simple linear regression) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,68% confidence interval upper bound,millimeter,Dec-Feb,climate reconstructions|tree ring,filtered,regression analysis,N,filtered with 21 year Gaussian; combination of predictor uncertainty and calibration uncertainty; simple linear regression) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,null,millimeter,Dec-Feb,climate reconstructions|tree ring,null,regression analysis,N,simple linear regression) earth science/paleoclimate/instrumental (precipitation,null,null,millimeter,Dec-Feb,instrumental,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,90% confidence interval upper bound,millimeter,Dec-Feb,climate reconstructions|tree ring,filtered,regression analysis,N,filtered with 21 year Gaussian; combination of predictor uncertainty and calibration uncertainty; simple linear regression) earth science/paleoclimate/instrumental (precipitation,null,null,millimeter,Dec-Feb,instrumental,filtered,null,N,filtered with 21 year Gaussian) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,68% confidence interval lower bound,millimeter,Dec-Feb,climate reconstructions|tree ring,filtered,regression analysis,N,filtered with 21 year Gaussian; combination of predictor uncertainty and calibration uncertainty; simple linear regression) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,null,millimeter,Dec-Feb,climate reconstructions|tree ring,filtered,regression analysis,N,filtered with 21 year Gaussian; simple linear regression) earth science/paleoclimate/climate reconstructions|tree ring (latitude,null,null,degree north,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (longitude,null,null,degree east,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (sea level pressure,null,null,pascal,Dec-Feb,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/reconstructions (Hawaiian Islands>LATITUDE 21>LONGITUDE -161) Few if any high-resolution (annually resolved) paleoclimate records are available for the Hawaiian Islands prior to ~1850 CE, after which some instrumental records start to become available. This paper shows how atmospheric teleconnection patterns between North America and the northeastern North Pacific (NNP) allow for reconstruction of Hawaiian Islands rainfall using remote proxy information from North America. Based on a newly available precipitation dataset for the state of Hawaii and observed and reconstructed December-February (DJF) sea level pressures (SLPs) in the North Pacific Ocean, the authors make use of a strong relationship between winter SLP variability in the northeast Pacific and corresponding DJF Hawaii rainfall variations to reconstruct and evaluate that season's rainfall over the period 1500-2012 CE. A general drying trend, though with substantial decadal and longer-term variability, is evident, particularly during the last ~160 years. Hawaiian Islands rainfall exhibits strong modulation by El Nino-Southern Oscillation (ENSO), as well as in relation to Pacific decadal oscillation (PDO)-like variability. For significant periods of time, the reconstructed large-scale changes in the North Pacific SLP field described here and by construction the long-term decline in Hawaiian winter rainfall are broadly consistent with long-term changes in tropical Pacific sea surface temperature (SST) based on ENSO reconstructions documented in several other studies, particularly over the last two centuries. Also noted are some rather large multidecadal fluctuations in rainfall (and hence in NNP SLP) in the eighteenth century of undetermined provenance. STUDY NOTES: Reconstructions of Hawaii winter (Dec-Feb) precipitation and northeast Pacific sea-level pressure for the past 500 years. These reconstructions utilize analogs states selected from MPI climate model using gridded California water year precipitation, southwestern N America JJA PDSI, and western N America FM surface temperature reconstructions. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Diaz, H.F. Investigator : Wahl, E.R. Investigator : Zorita, E. Investigator : Giambelluca, T.W. Investigator : Eischeid, J. 2016-09-02 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/20465 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/hawaii2016precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/diaz2016slp.nc https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/hawaii2016precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/diaz2016slp.nc English https://www.ncdc.noaa.gov/paleo/study/20465 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/hawaii2016precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/diaz2016slp.nc Henry F. Diaz, Eugene R. Wahl, Eduardo Zorita, Thomas W. Giambelluca, Jon K. Eischeid2016A Five-Century Reconstruction of Hawaiian Islands Winter RainfallJournal of Climate29155661-567410.1175/JCLI-D-15-0815.1http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-15-0815.1 START YEAR: 1500 AD * END YEAR: 2012 AD -166.74 18.72 -156.15 23.95