NOAA/WDS Paleoclimatology - Potomac River 1000 Year May-September Streamflow Reconstruction
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Climate Reconstruction. The data include parameters of climate reconstructions|tree ring with a geographic location of Maryland, United States Of America. The time period coverage is from 1000 to -51 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
Dataset Citation
- Cite as: Maxwell, R.S.; Hessl, A.E.; Cook, E.R.; Pederson, N. (2012-01-28): NOAA/WDS Paleoclimatology - Potomac River 1000 Year May-September Streamflow Reconstruction. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/qf1s-d057. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/qf1s-d057
- noaa-recon-12424
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-recon-12424
Search Data |
|
Download Data |
|
Distribution Formats |
|
Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 950 CE to 2001 CE; Date Range: 1000 cal yr BP to -51 cal yr BP; |
Time Period | 950 to 2001 |
Spatial Bounding Box Coordinates |
West: -77.5431
East: -77.5431
South: 39.2736
North: 39.2736
|
Spatial Coverage Map |
General Documentation |
|
Associated Resources |
|
Publication Dates |
|
Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information | STUDY NOTES: Reconstruction of May through September Potomac River streamflow for 950-2001 AD at the Point of Rocks, Maryland USGS streamflow gauge. The streamflow reconstruction is based on 27 tree ring chronologies representing multiple species from locations in the Appalachian Mountains and east to the Atlantic Coast in Maryland, Pennsylvania, West Virginia, and Virginia. Some of the tree ring chronologies are available in the International Tree-Ring Data Bank: http://www.ncdc.noaa.gov/paleo/treering.html ABSTRACT SUPPLIED BY ORIGINATOR: Mean May-September Potomac River streamflow was reconstructed from 950-2001 using a network of tree ring chronologies (n = 27) representing multiple species. We chose a nested principal components reconstruction method to maximize use of available chronologies backward in time. Explained variance during the period of calibration ranged from 20% to 53% depending on the number and species of chronologies available in each 25 year time step. The model was verified by two goodness of fit tests, the coefficient of efficiency (CE) and the reduction of error statistic (RE). The RE and CE never fell below zero, suggesting the model had explanatory power over the entire period of reconstruction. Beta weights indicated a loss of explained variance during the 1550-1700 period that we hypothesize was caused by the reduction in total number of predictor chronologies and loss of important predictor species. Thus, the reconstruction is strongest from 1700-2001. Frequency, intensity, and duration of drought and pluvial events were examined to aid water resource managers. We found that the instrumental period did not represent adequately the full range of annual to multidecadal variability present in the reconstruction. Our reconstruction of mean May-September Potomac River streamflow was a significant improvement over the Cook and Jacoby (1983) reconstruction because it expanded the seasonal window, lengthened the record by 780 years, and better replicated the mean and variance of the instrumental record. By capitalizing on variable phenologies and tree growth responses to climate, multispecies reconstructions may provide significantly more information about past hydroclimate, especially in regions with low aridity and high tree species diversity. |
Purpose | Records of past temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations. |
Dataset Citation |
|
Cited Authors |
|
Originators |
|
Publishers |
|
Theme keywords |
Global Change Master Directory (GCMD) Science Keywords
|
Data Center keywords |
Global Change Master Directory (GCMD) Data Center Keywords
|
Place keywords |
|
Use Constraints |
|
Access Constraints |
|
Fees |
|
Last Modified: 2024-02-20
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov