Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Avis D. Newell"'
Autor:
Brit Lisa Skjelkvåle, Avis D. Newell
Publikováno v:
Water, Air, & Soil Pollution. 93:27-57
We applied trend analyses to data from the International Cooperative Programme forAcidification of Rivers and Lakes in an attempt to discover regional patterns of long-term changesin surface water chemistry both in Europe and North America, and to re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::684f93c600f1753d97c599065c649ed9
https://doi.org/10.1007/bf02404746
https://doi.org/10.1007/bf02404746
Publikováno v:
Water Resources Research. 32:2529-2538
The Temporally Integrated Monitoring of Ecosystems (TIME) project utilizes a hybrid sampling approach to achieve its goal of assessing whether emissions controls, mandated by the Clean Air Act Amendments of 1990, have had their intended effect on lak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5936a86984d6f24c9aef8af0f50f4c59
https://doi.org/10.1029/96wr00902
https://doi.org/10.1029/96wr00902
Autor:
Avis D. Newell
Publikováno v:
Water, Air, & Soil Pollution. 67:257-280
Temporal trends in acid-base chemistry are reported for surface waters in 6 regions of the United States. The lakes and streams are low ANC, dilute systems, selected to represent acid-sensitive aquatic resources in the 6 regions. The predominant tren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98002ca4b85503b1cb2a6e375530da51
https://doi.org/10.1007/bf00478149
https://doi.org/10.1007/bf00478149
Publikováno v:
Water, Air, & Soil Pollution. 67:457-468
Data from monitoring projects often include sampling or analytical changes that preclude trend analysis on the entire period of record. A modification of the nonparametric Kendall's test for monotonic trends, which accounts for such changes in the pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4e41ec34e4cd4d5db4829d5a6b20148
https://doi.org/10.1007/bf00478158
https://doi.org/10.1007/bf00478158
Autor:
Marilyn L. Morrison, Avis D. Newell
Publikováno v:
Water, Air, & Soil Pollution. 67:433-456
Long-term monitoring projects are usually plagued with method changes that occur in the midst of the monitoring record. Such changes can affect the data, resulting in observations of long-term trends that reflect the change in methods rather than the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31483b83954eb859c8a110f737f68321
https://doi.org/10.1007/bf00478157
https://doi.org/10.1007/bf00478157
Publikováno v:
Journal of the American Water Resources Association. 27:461-473
Multivariate methods of trend analysis offer the potential for higher power in detecting gradual water quality changes as compared to multiple applications of univariate tests. Simulation experiments were used to investigate the power advantages of m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d2253811e8188e343efba4856ac6dff
https://doi.org/10.1111/j.1752-1688.1991.tb01446.x
https://doi.org/10.1111/j.1752-1688.1991.tb01446.x
Autor:
Avis D. Newell, James G. Sanders
Publikováno v:
Environmental Science & Technology. 20:817-821
Naturally occurring organics in samples taken from the mesohaline portion of a Chesapeake Bay tributary were separated into four nominal molecular weight fractions and analyzed for their ability to bind copper by using an algal bioassay. The organics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43a510a5e3983e564adf3fcc07682474
https://doi.org/10.1021/es00150a010
https://doi.org/10.1021/es00150a010