scholarly journals Comment on An additional challenge of Lake Kivu in Central Africa – upward movement of the chemoclines by Finn Hirslund

2012 ◽  
Vol 71 (2) ◽  
pp. 35 ◽  
Author(s):  
Martin Schmid ◽  
KellyAnn Ross ◽  
Alfred Wüest
Keyword(s):  
Central Africa ◽  
Upward Movement ◽  
Lake Kivu ◽  
Additional Challenge

Origin of methane in Lake Kivu (East-Central Africa)

1988 ◽  
Vol 71 (1-3) ◽  
pp. 257-265 ◽  
Author(s):  
M. Schoell ◽  
K. Tietze ◽  
S.M. Schoberth
Keyword(s):  
Central Africa ◽  
East Central ◽  
Lake Kivu

Isotope geochemistry of carbonate sediments from Lake Kivu (East-Central Africa)

1988 ◽  
Vol 69 (3-4) ◽  
pp. 299-308 ◽  
Author(s):  
R. Botz ◽  
P. Stoffers ◽  
E. Faber ◽  
K. Tietze
Keyword(s):  
Isotope Geochemistry ◽  
Central Africa ◽  
Carbonate Sediments ◽  
East Central ◽  
Lake Kivu

The genesis of the methane in Lake Kivu (Central Africa)

1980 ◽  
Vol 69 (2) ◽  
pp. 452-472 ◽  
Author(s):  
Klaus Tietze ◽  
Mebus Geyh ◽  
Helmut Müller ◽  
Lothar Schröder ◽  
Wolfgang Stahl ◽  
...  
Keyword(s):  
Central Africa ◽  
Lake Kivu

Water level monitoring using radar remote sensing data: Application to Lake Kivu, central Africa

2009 ◽  
Vol 34 (13-16) ◽  
pp. 722-728 ◽  
Author(s):  
Omar Munyaneza ◽  
Umaru G. Wali ◽  
Stefan Uhlenbrook ◽  
Shreedhar Maskey ◽  
McArd J. Mlotha
Keyword(s):  
Remote Sensing ◽  
Water Level ◽  
Central Africa ◽  
Remote Sensing Data ◽  
Radar Remote Sensing ◽  
Sensing Data ◽  
Data Application ◽  
Lake Kivu ◽  
Level Monitoring ◽  
Water Level Monitoring

scholarly journals Revisiting Microstructure Sensor Responses with Implications for Double-Diffusive Fluxes

2013 ◽  
Vol 30 (8) ◽  
pp. 1907-1923 ◽  
Author(s):  
Tobias Sommer ◽  
Jeffrey R. Carpenter ◽  
Martin Schmid ◽  
Rolf G. Lueck ◽  
Alfred Wüest
Keyword(s):  
Frequency Response ◽  
Central Africa ◽  
Small Scale ◽  
Response Characteristics ◽  
Conductivity Sensor ◽  
Lake Kivu ◽  
Scale Turbulence ◽  
Diffusive Fluxes ◽  
Double Diffusive

Abstract Thin high-gradient interfaces that occur naturally within double-diffusive staircases are used to estimate the response characteristics of temperature and conductivity microstructure sensors. The knowledge of these responses is essential for resolving small-scale turbulence in natural water bodies and for determining double-diffusive fluxes of heat and salt. Here, the authors derive microstructure sensor responses from observed differences in the statistical distributions of interface thicknesses at various profiling speeds in Lake Kivu (central Africa). In contrast to the standard approach for determining sensor responses, this method is independent of any knowledge of the true in situ temperature and salinity structure. Assuming double-pole frequency response functions, the time constants for the Sea-Bird Electronics SBE-7 conductivity sensor and the Rockland Scientific International FP07 thermistor are estimated to be 2.2 and 10 ms, respectively. In contrast to previous assumptions, the frequency response for the SBE-7 is found to be substantial and dominates the wavenumber response for profiling speeds larger than 0.19 m s−1.

Sign in / Sign up

Export Citation Format

Share Document