Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data
The average ring-width index of two published chronologies from the eastern Tennessee climatic division was used as a single predictor variable in linear regression to reconstruct May June precipitation. Regression equations obtained using regionally averaged precipitation data from stations within...
Main Authors: | , , |
---|---|
Other Authors: | |
Language: | en_US |
Published: |
Tree-Ring Society
1981
|
Subjects: | |
Online Access: | http://hdl.handle.net/10150/261056 |
id |
ndltd-arizona.edu-oai-arizona.openrepository.com-10150-261056 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-arizona.edu-oai-arizona.openrepository.com-10150-2610562015-10-23T04:58:25Z Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data Blasing, T. J. Duvick, D. N. West, D. C. Environmental Sciences Division, Oak Ridge National Laboratory, Tennessee Dendrochronology Tree Rings Dendroclimatology Statistical Analysis The average ring-width index of two published chronologies from the eastern Tennessee climatic division was used as a single predictor variable in linear regression to reconstruct May June precipitation. Regression equations obtained using regionally averaged precipitation data from stations within the climatic division were compared with regressions obtained using single-station (Knoxville, Tennessee) data for comparable periods. The (regionally averaged) division data always provided the better calibration statistics for the regression equations. When the regressions calibrated using division data were verified with independent data for the climatic division and for Knoxville, the better results were always obtained for the division data. When regressions calibrated using single-station data were verified, the independent division data once again provided better results than the independent Knoxville data. Regionally averaged precipitation data also provided more satisfactory results than single- station data in a similar experiment for central Iowa, and probably provides better results in general for this type of dendroclimatic experiment. 1981 Article Blasing, T.J., Duvick, D.N., West, D.C. 1981. Dendroclimatic calibration and verification using regionally averaged and single station precipitation data. Tree-Ring Bulletin 41:37-43. 0041-2198 http://hdl.handle.net/10150/261056 Tree-Ring Bulletin en_US http://www.treeringsociety.org Copyright © Tree-Ring Society. All rights reserved. Tree-Ring Society |
collection |
NDLTD |
language |
en_US |
sources |
NDLTD |
topic |
Dendrochronology Tree Rings Dendroclimatology Statistical Analysis |
spellingShingle |
Dendrochronology Tree Rings Dendroclimatology Statistical Analysis Blasing, T. J. Duvick, D. N. West, D. C. Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data |
description |
The average ring-width index of two published chronologies from the eastern Tennessee climatic division was used as a single predictor variable in linear regression to reconstruct May June precipitation. Regression equations obtained using regionally averaged precipitation data from stations within the climatic division were compared with regressions obtained using single-station (Knoxville, Tennessee) data for comparable periods. The (regionally averaged) division data always provided the better calibration statistics for the regression equations. When the regressions calibrated using division data were verified with independent data for the climatic division and for Knoxville, the better results were always obtained for the division data. When regressions calibrated using single-station data were verified, the independent division data once again provided better results than the independent Knoxville data. Regionally averaged precipitation data also provided more satisfactory results than single- station data in a similar experiment for central Iowa, and probably provides better results in general for this type of dendroclimatic experiment. |
author2 |
Environmental Sciences Division, Oak Ridge National Laboratory, Tennessee |
author_facet |
Environmental Sciences Division, Oak Ridge National Laboratory, Tennessee Blasing, T. J. Duvick, D. N. West, D. C. |
author |
Blasing, T. J. Duvick, D. N. West, D. C. |
author_sort |
Blasing, T. J. |
title |
Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data |
title_short |
Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data |
title_full |
Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data |
title_fullStr |
Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data |
title_full_unstemmed |
Dendroclimatic Calibration and Verification Using Regionally Averaged and Single Station Precipitation Data |
title_sort |
dendroclimatic calibration and verification using regionally averaged and single station precipitation data |
publisher |
Tree-Ring Society |
publishDate |
1981 |
url |
http://hdl.handle.net/10150/261056 |
work_keys_str_mv |
AT blasingtj dendroclimaticcalibrationandverificationusingregionallyaveragedandsinglestationprecipitationdata AT duvickdn dendroclimaticcalibrationandverificationusingregionallyaveragedandsinglestationprecipitationdata AT westdc dendroclimaticcalibrationandverificationusingregionallyaveragedandsinglestationprecipitationdata |
_version_ |
1718101771118706688 |