The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform
Jan-gunnar Winther - One of the best experts on this subject based on the ideXlab platform.
-
Snow Grain-Size measurements in Antarctica
Journal of Glaciology, 2015Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain-Size is an important but not well-known characteristic of snow at the surface of Antarctica. In the past, Grain-Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, three tech- niques of snow-Grain sampling and/or imaging in the field as well as an original digital image-processing method, which we have proved provides reproducible and intercompar- able measures of a snow Grain-Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited yet unprecedentedly wide picture of near-surface snow Grain-Size distribution from fieldwork in Antarctica. In particular, except at sites affected by a very particular meteor- ology, surface Grains in the interior of the ice sheet are uniformly small (0.1^0.2 mm). The climate-related increase of Grain-Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain-Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain Size is an important but not well known characteristics of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and inter comparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and /or imaging in the field as well as an ariginal digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains presented, which yield a still spatially limited, yet unprecendtedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (o.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigators bring new samples, images and measures of snow Grain Size.
Michel Fily - One of the best experts on this subject based on the ideXlab platform.
-
Snow Grain-Size measurements in Antarctica
Journal of Glaciology, 2015Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain-Size is an important but not well-known characteristic of snow at the surface of Antarctica. In the past, Grain-Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, three tech- niques of snow-Grain sampling and/or imaging in the field as well as an original digital image-processing method, which we have proved provides reproducible and intercompar- able measures of a snow Grain-Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited yet unprecedentedly wide picture of near-surface snow Grain-Size distribution from fieldwork in Antarctica. In particular, except at sites affected by a very particular meteor- ology, surface Grains in the interior of the ice sheet are uniformly small (0.1^0.2 mm). The climate-related increase of Grain-Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain-Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain Size is an important but not well known characteristics of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and inter comparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and /or imaging in the field as well as an ariginal digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains presented, which yield a still spatially limited, yet unprecendtedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (o.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigators bring new samples, images and measures of snow Grain Size.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, J. WintherAbstract:Grain Size is an important but not well known characteristic of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and/or imaging in the field as well as an original digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited, yet unprecedentedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (0.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
Hans Oerter - One of the best experts on this subject based on the ideXlab platform.
-
Snow Grain-Size measurements in Antarctica
Journal of Glaciology, 2015Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain-Size is an important but not well-known characteristic of snow at the surface of Antarctica. In the past, Grain-Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, three tech- niques of snow-Grain sampling and/or imaging in the field as well as an original digital image-processing method, which we have proved provides reproducible and intercompar- able measures of a snow Grain-Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited yet unprecedentedly wide picture of near-surface snow Grain-Size distribution from fieldwork in Antarctica. In particular, except at sites affected by a very particular meteor- ology, surface Grains in the interior of the ice sheet are uniformly small (0.1^0.2 mm). The climate-related increase of Grain-Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain-Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain Size is an important but not well known characteristics of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and inter comparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and /or imaging in the field as well as an ariginal digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains presented, which yield a still spatially limited, yet unprecendtedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (o.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigators bring new samples, images and measures of snow Grain Size.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, J. WintherAbstract:Grain Size is an important but not well known characteristic of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and/or imaging in the field as well as an original digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited, yet unprecedentedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (0.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
Christophe Genthon - One of the best experts on this subject based on the ideXlab platform.
-
Snow Grain-Size measurements in Antarctica
Journal of Glaciology, 2015Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain-Size is an important but not well-known characteristic of snow at the surface of Antarctica. In the past, Grain-Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, three tech- niques of snow-Grain sampling and/or imaging in the field as well as an original digital image-processing method, which we have proved provides reproducible and intercompar- able measures of a snow Grain-Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited yet unprecedentedly wide picture of near-surface snow Grain-Size distribution from fieldwork in Antarctica. In particular, except at sites affected by a very particular meteor- ology, surface Grains in the interior of the ice sheet are uniformly small (0.1^0.2 mm). The climate-related increase of Grain-Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain-Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain Size is an important but not well known characteristics of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and inter comparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and /or imaging in the field as well as an ariginal digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains presented, which yield a still spatially limited, yet unprecendtedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (o.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigators bring new samples, images and measures of snow Grain Size.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, J. WintherAbstract:Grain Size is an important but not well known characteristic of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and/or imaging in the field as well as an original digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited, yet unprecedentedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (0.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
Massimo Frezzotti - One of the best experts on this subject based on the ideXlab platform.
-
Snow Grain-Size measurements in Antarctica
Journal of Glaciology, 2015Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain-Size is an important but not well-known characteristic of snow at the surface of Antarctica. In the past, Grain-Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, three tech- niques of snow-Grain sampling and/or imaging in the field as well as an original digital image-processing method, which we have proved provides reproducible and intercompar- able measures of a snow Grain-Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited yet unprecedentedly wide picture of near-surface snow Grain-Size distribution from fieldwork in Antarctica. In particular, except at sites affected by a very particular meteor- ology, surface Grains in the interior of the ice sheet are uniformly small (0.1^0.2 mm). The climate-related increase of Grain-Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain-Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, Jan-gunnar WintherAbstract:Grain Size is an important but not well known characteristics of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and inter comparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and /or imaging in the field as well as an ariginal digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains presented, which yield a still spatially limited, yet unprecendtedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (o.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigators bring new samples, images and measures of snow Grain Size.
-
Snow Grain Size measurements in Antarctica
Journal of Glaciology, 2002Co-Authors: Michel Gay, Michel Fily, Christophe Genthon, Hans Oerter, Massimo Frezzotti, J. WintherAbstract:Grain Size is an important but not well known characteristic of snow at the surface of Antarctica. In the past, Grain Size has been reported using various methods, the reliability, reproducibility and intercomparability of which is not warranted. In this paper, we present and recommend, depending on available logistical support, 3 techniques of snow Grain sampling and/or imaging in the field as well as an original digital image processing method, which we have proved to provide reproducible and intercomparable measures of a snow Grain Size parameter, the mean convex radius. Results from more than 500 samples and 3000 images of snow Grains are presented, which yield a still spatially limited, yet unprecedentedly wide picture of near-surface snow Grain Size distribution from field work in Antarctica. In particular, except at sites affected by a very particular meteorology, surface Grains in the interior of the ice sheet are uniformly small (0.1 to 0.2 mm). The climate-related increase of Grain Size with depth through metamorphism is, as expected, not spatially uniform. Our Antarctic snow Grain Size database will continue to grow as field investigations bring new samples, images and measures of snow Grain.
