Garlmer River Data

GARLMER DATABASE CONTENTS

PLEASE NOTE:
LMER sites require that the following policies be adhered to for utilization of LMER data: The principal investigator should be sent a notice stating reasons for acquiring any data and a description of the publication intentions. The principal investigator for the data set should be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications. A copy of any resultant publications should be sent to the principal investigator.

Below are listed the currently available Georgia River's LMER data sets. Select the river of interest under a chosen data category.


BACTERIAL SECONDARY PRODUCTION
Measures of instantaneous bacterial production rates based on incorporation of tritiated leucine into bacterial protein.


CTD
Conductivity, temperature and density measurements for vertical transects.


ODIS
Conductivity, temperature and density measurements for horizontal (surface water) transects.


DISSOLVED ORGANIC CARBON
Measurements of dissolved organic carbon in surface and bottom waters using high temperature combustion analytical techniques. For some samples, humic substances' organic carbon concentrations are also included.


DOM FLUORESCENCE
Natural fluoresecence of dissolved organic matter measured at 350nm excitation and 450nm emission.


GIS
Land use, land cover, hydrography and other data sets derived from Geographic Information Systems.


MICROBIAL RESPIRATORY RATES
Changes in dissolved oxygen in dark incubation, measured by precision Winkler techniques. Time zero values are also useful for ambient dissolved oxygen. Some enrichment experiments using this technique are also reported.


NUTRIENTS
Measurements of concentrations of dissolved ammonium, nitrite, nitrate, silicate and phosphate in surface and occasionally bottom waters and sample salinities are included. Standard analytical techniques have been modified for high levels of humic substances.


PARTICLE CHARACTERIZATION
Measurements of suspended sediment concentrations, % organic matter, CHN concentrations, and chlorophyll a / phaeopigment. For some data sets, samples were separated by settling tubes into fractions containing particles with different settling velocities.


OTHER
These are experiments conducted to answer additional specific questions and which do not classify easily under the above headings. These experiments were carried out in the field or in the labs of the individual principal investigators.






Last update: 16 February 2002