Geological survey water - supply paper, 2080. Dendroclimatic estimates of a drought index for Northern Virginia / Puckett, L. J.

Public ISBD Titre de série : Geological survey water - supply paper, 2080 Titre : Dendroclimatic estimates of a drought index for Northern Virginia Type de document : texte imprimé Auteurs : Puckett, L. J. Mention d'édition : US Government Printing Office Editeur : US Government Printing Office Année de publication : 1981 ISBN/ISSN/EAN : CI-07799 Note générale : A A 23 year record of the palmer drought - severity index (PDSI) has estimated for Norhtern Virginia from variations in widths of three rings. Increment cores are extrated fromeastern hemlock . Measuremarts of annual grouth increments are made and converted to standardized indices of grouth. A response function is derived for hemlock to determine the grouth - Climate relationship . Growth is positively correlate with precipitation and negatively correlated with temperature during the May - July growing season Combined standardized indices of grouth are calibrated with the July PDSI. Growth accounted for 20 - 30 percent of the PDSI variance . Further regressions using factor scores of combined three grouth indices resulted in a small but significant improvement. Comparaison of the results with a 241 year reconstruction from New - York showed good agreement between low frequency climatic trends. Langues : Anglais (eng) Mots-clés : Sécheresse  Géologie  Alimentation en eau  Climat  PRECIPITATIONS  Construction Index. décimale : 631.1 Dégâts dus à des fléaux naturels : froid, sécheresse, précipitations, pollution Résumé : A A 23 year record of the palmer drought - severity index (PDSI) has estimated for Norhtern Virginia from variations in widths of three rings. Increment cores are extrated fromeastern hemlock . Measuremarts of annual grouth increments are made and converted to standardized indices of grouth. A response function is derived for hemlock to determine the grouth - Climate relationship . Growth is positively correlate with precipitation and negatively correlated with temperature during the May - July growing season Combined standardized indices of grouth are calibrated with the July PDSI. Growth accounted for 20 - 30 percent of the PDSI variance . Further regressions using factor scores of combined three grouth indices resulted in a small but significant improvement. Comparaison of the results with a 241 year reconstruction from New - York showed good agreement between low frequency climatic trends. Note de contenu : A A 23 year record of the palmer drought - severity index (PDSI) has estimated for Norhtern Virginia from variations in widths of three rings. Increment cores are extrated fromeastern hemlock . Measuremarts of annual grouth increments are made and converted to standardized indices of grouth. A response function is derived for hemlock to determine the grouth - Climate relationship . Growth is positively correlate with precipitation and negatively correlated with temperature during the May - July growing season Combined standardized indices of grouth are calibrated with the July PDSI. Growth accounted for 20 - 30 percent of the PDSI variance . Further regressions using factor scores of combined three grouth indices resulted in a small but significant improvement. Comparaison of the results with a 241 year reconstruction from New - York showed good agreement between low frequency climatic trends. Geological survey water - supply paper, 2080. Dendroclimatic estimates of a drought index for Northern Virginia [texte imprimé] / Puckett, L. J.  . -  US Government Printing Office . - US Government Printing Office, 1981. ISSN : CI-07799 A A 23 year record of the palmer drought - severity index (PDSI) has estimated for Norhtern Virginia from variations in widths of three rings. Increment cores are extrated fromeastern hemlock . Measuremarts of annual grouth increments are made and converted to standardized indices of grouth. A response function is derived for hemlock to determine the grouth - Climate relationship . Growth is positively correlate with precipitation and negatively correlated with temperature during the May - July growing season Combined standardized indices of grouth are calibrated with the July PDSI. Growth accounted for 20 - 30 percent of the PDSI variance . Further regressions using factor scores of combined three grouth indices resulted in a small but significant improvement. Comparaison of the results with a 241 year reconstruction from New - York showed good agreement between low frequency climatic trends. Langues : Anglais (eng) Mots-clés : Sécheresse  Géologie  Alimentation en eau  Climat  PRECIPITATIONS  Construction Index. décimale : 631.1 Dégâts dus à des fléaux naturels : froid, sécheresse, précipitations, pollution Résumé : A A 23 year record of the palmer drought - severity index (PDSI) has estimated for Norhtern Virginia from variations in widths of three rings. Increment cores are extrated fromeastern hemlock . Measuremarts of annual grouth increments are made and converted to standardized indices of grouth. A response function is derived for hemlock to determine the grouth - Climate relationship . Growth is positively correlate with precipitation and negatively correlated with temperature during the May - July growing season Combined standardized indices of grouth are calibrated with the July PDSI. Growth accounted for 20 - 30 percent of the PDSI variance . Further regressions using factor scores of combined three grouth indices resulted in a small but significant improvement. Comparaison of the results with a 241 year reconstruction from New - York showed good agreement between low frequency climatic trends. Note de contenu : A A 23 year record of the palmer drought - severity index (PDSI) has estimated for Norhtern Virginia from variations in widths of three rings. Increment cores are extrated fromeastern hemlock . Measuremarts of annual grouth increments are made and converted to standardized indices of grouth. A response function is derived for hemlock to determine the grouth - Climate relationship . Growth is positively correlate with precipitation and negatively correlated with temperature during the May - July growing season Combined standardized indices of grouth are calibrated with the July PDSI. Growth accounted for 20 - 30 percent of the PDSI variance . Further regressions using factor scores of combined three grouth indices resulted in a small but significant improvement. Comparaison of the results with a 241 year reconstruction from New - York showed good agreement between low frequency climatic trends.

Réservation

Réserver ce document

Exemplaires(8)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
CI03B799.96586	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96585	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96584	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96583	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96582	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96581	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96580	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible
CI03B799.96579	CI-07799	Monographie	Bibliothèque CDI-Ouaga	Fond documentaire	Disponible

---

1 (1 - 1 / 1) Par page : 25 50 100 200