Environmetrics

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
Bias correction in estimation of public health risk attributable to short‐term air pollution exposure
Environmetrics - Tập 26 Số 4 - Trang 298-311 - 2015
Wesley S. Burr, Glen Takahara, Hwashin Hyun Shin
Numerous epidemiologic studies have reported associations between short‐term air pollution exposure and mortality. Such short‐term risk models include smooth functions of time to control for unmeasured confounding variables. We demonstrate bias in these short‐term Generalized Additive Model estimates because of lack of accounting for long timescale variations and propose a family of improv...... hiện toàn bộ
Spatiotemporal models in the estimation of area precipitation
Environmetrics - Tập 16 Số 8 - Trang 773-802 - 2005
Eduardo Severino, Teresa Alpuim
AbstractSince area precipitation measurements are difficult to obtain because of the large spatial and time variability of the precipitation field, the development of statistical methods for the optimal combination of weather radar and rain gauge measurements is a matter of great importance. This work presents area rainfall prediction methods based on ...... hiện toàn bộ
Classification and calibration of organic matter fluorescence data with multiway analysis methods and artificial neural networks: an operational tool for improved drinking water treatment
Environmetrics - Tập 22 Số 3 - Trang 256-270 - 2011
Magdalena Bieroza, Andy Baker, John Bridgeman
Multivariate quantiles in hydrological frequency analysis
Environmetrics - Tập 22 Số 1 - Trang 63-78 - 2011
Fateh Chebana, Taha B. M. J. Ouarda
Comparative spatiotemporal analysis of fine particulate matter pollution
Environmetrics - Tập 21 Số 3-4 - Trang 305-317 - 2010
Wyson Pang, George Christakos, Jinfeng Wang
AbstractThe prime focus of this work is the comparative investigation, theoretical and numerical, of spatiotemporal techniques used in air pollution studies. Space‐time statistics techniques are classified on the basis of a set of criteria and the relative theoretical merits of each technique are discussed accordingly. The numerical comparison involves the applicat...... hiện toàn bộ
Non‐parametric trend test of baltic sea data
Environmetrics - Tập 2 Số 3 - Trang 263-278 - 1991
Per Sandén, Lars Rahm, Fredrik Wulff
AbstractThe recently reported tendencies toward decreasing total amounts of silicate in the Baltic Sea are investigated by use of non‐parametric trend analysis. The period 1968‐1986 showed significant falling trends in surface waters from the whole system. The deepest parts of the Baltic proper did in contrast reveal strong increasing trends. These trends are more ...... hiện toàn bộ
Categorical structured additive regression for assessing habitat suitability in the spatial distribution of mussel seed abundance
Environmetrics - Tập 23 Số 1 - Trang 75-84 - 2012
María P. Pata, Thomas Kneib, Carmen Cadarso‐Suárez, Vicente Lustres-Pérez, Eugenio Fernández‐Pulpeiro
Categorical regression models enable the investigation of regression relationships between a polytomous response and a set of regressor variables. Depending on whether the categories are ordered or nominal, special categorical models such as cumulative and multinomial models have been proposed in the statistical literature. In this paper, we compare various categorical structured additive ...... hiện toàn bộ
The role of statisticians in international science policy
Environmetrics - Tập 22 Số 7 - Trang 817-825 - 2011
Peter Guttorp
There are precious few statisticians involved in science policy, either nationally or internationally. In this paper I will, in an unusually personal way for a scientific journal, describe some of the possibilities for policy work and the potential impact such work can have. An example is the Intergovernmental Panel on Climate Change. I will also discuss ways that organizations, individual...... hiện toàn bộ
Spatial covariance modelling in a complex coastal domain by multidimensional scaling
Environmetrics - Tập 14 Số 3 - Trang 307-321 - 2003
Anders Løland, Gudmund Høst
AbstractIn aquatic studies, spatial interactions may be both easier to interpret and to quantify by using water distance than by using geographic distance. The water distance is the shortest path between those two sites that may be traversed entirely over water. One problem is that water distances may be non‐Euclidean, and thus covariance and variogram functions ar...... hiện toàn bộ
Landscape‐based geostatistics: a case study of the distribution of blue crab in Chesapeake Bay
Environmetrics - Tập 17 Số 6 - Trang 605-621 - 2006
Olaf P. Jensen, Mary C. Christman, Thomas J. Miller
AbstractGeostatistical techniques have gained widespread use in ecology and environmental science. Variograms are commonly used to describe and examine spatial autocorrelation, and kriging has become the method of choice for interpolating spatially‐autocorrelated variables. To date, most applications of geostatistics have defined the separation between sample point...... hiện toàn bộ
Tổng số: 21   
  • 1
  • 2
  • 3