scholarly journals SUCCESSIVE CHANGES OF THE VERTICAL DISTRIBUTION OF AIDANOSAGITTA DELICATA (TOKIOKA) AT A FIXED STATION IN A COVE OF TANABE BAY

1970 ◽  
Vol 18 (3) ◽  
pp. 209-213
Author(s):  
Yumiko Nakayama
Keyword(s):  
Vertical Distribution ◽  
The Vertical Distribution ◽  
Fixed Station

The seasonal cycles and vertical distribution of tintinnines in Bedford Basin, Nova Scotia, Canada

1987 ◽  
Vol 65 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Madhu A. Paranjape
Keyword(s):  
Nova Scotia ◽  
Vertical Distribution ◽  
Seasonal Cycle ◽  
Late Summer ◽  
Survival Strategies ◽  
Late Winter ◽  
Seasonal Cycles ◽  
The Vertical Distribution ◽  
Fixed Station

The vertical distribution and seasonal cycle of tintinnine species were studied in Bedford Basin at a fixed station on 60 visits over an 18-month period. About 23 species of tintinnines belonging to 9 families were identified but only 12 were numerically dominant. Maximal numbers (102 to 104/L) were found in late summer and fall and minimal numbers (101 to 102/L), in late winter. The hyaline species of tintinnines occurred mostly in summer and fall, while agglomerated species dominated during other seasons. The total tintinnines contributed 35% (range, 3 to 55%) numerically and 2.5% (range, 0.05 to 16%) in terms of carbon to the microzooplankton in the Bedford Basin. The survival strategies employed by some species of tintinnines reasonably explain their seasonal cycle of abundance.

The vertical distribution of thin features over the Arctic analysed from CALIPSO observations. Part I: Optically thin clouds

Tellus B ◽  
2011 ◽  
Vol 63 (1) ◽  
Author(s):  
Abhay Devasthale ◽  
Michael Tjernström ◽  
Karl-Göran Karlsson ◽  
Manu Anna Thomas ◽  
Colin Jones ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
The Arctic ◽  
The Vertical Distribution

scholarly journals Continuous borehole optical televiewing reveals variable englacial debris concentrations at Khumbu Glacier, Nepal

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Katie E. Miles ◽  
Bryn Hubbard ◽  
Evan S. Miles ◽  
Duncan J. Quincey ◽  
Ann V. Rowan ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Water Supply ◽  
Depth Profile ◽  
Variable Thickness ◽  
Surface Melting ◽  
High Mountain ◽  
Ablation Area ◽  
The Mean ◽  
Surface Melt ◽  
The Vertical Distribution

AbstractSurface melting of High Mountain Asian debris-covered glaciers shapes the seasonal water supply to millions of people. This melt is strongly influenced by the spatially variable thickness of the supraglacial debris layer, which is itself partially controlled by englacial debris concentration and melt-out. Here, we present measurements of deep englacial debris concentrations from debris-covered Khumbu Glacier, Nepal, based on four borehole optical televiewer logs, each up to 150 m long. The mean borehole englacial debris content is ≤ 0.7% by volume in the glacier’s mid-to-upper ablation area, and increases to 6.4% by volume near the terminus. These concentrations are higher than those reported for other valley glaciers, although those measurements relate to discrete samples while our approach yields a continuous depth profile. The vertical distribution of englacial debris increases with depth, but is also highly variable, which will complicate predictions of future rates of surface melt and debris exhumation at such glaciers.

A case study on the vertical distribution and characteristics of aerosols using ground-based raman lidar, satellite and model over Western India

2021 ◽  
Vol 42 (17) ◽  
pp. 6421-6436
Author(s):  
Sourita Saha ◽  
Som Sharma ◽  
K. Niranjan Kumar ◽  
Prashant Kumar ◽  
Vaidehi Joshi ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Western India ◽  
Raman Lidar ◽  
The Vertical Distribution

A Modified Freeze-Core Technique to Quantify the Depth Distribution of Fauna in Stony Streambeds

1983 ◽  
Vol 40 (5) ◽  
pp. 637-643 ◽  
Author(s):  
C. W. Pugsley ◽  
H. B. N. Hynes
Keyword(s):  
Vertical Distribution ◽  
Liquid Nitrogen ◽  
Benthic Invertebrates ◽  
Depth Distribution ◽  
Sampling Methods ◽  
Freezing Front ◽  
Southern Ontario ◽  
Freeze Core ◽  
Order Of Magnitude ◽  
The Vertical Distribution

A freeze-coring device using liquid nitrogen is described, which enables one person to take a columnar core, extending from the surface to at least 50 cm below a stony streambed. An experiment to validate the technique showed that animals did not flee from the advance of the freezing-front. Using frozen streambed cores, the vertical distribution of benthic invertebrates of two streams in southern Ontario was investigated. In contrast to previous estimates,~70% of the fauna was found in the top 10 cm of the streambed, and invertebrate densities were often lower by an order of magnitude. These differences are attributed to problems of quantifying previous sampling methods.

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