Climate variability and change pose both challenges and opportunities for the US. To be better prepared, the United States has developed a national assessment process to identify and analyze the potential consequences of climate variability and change.
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech) About…
Sponsor: GWRI
Start Date: 1998-07-01; Completion Date: 1999-12-31;
Keywords: Climate and Hydrologic Processes, Hydrology, Management and Planning
Problem and Research Objectives:
Climate variability and change pose both challenges and opportunities for the US. To be better prepared, the United States has developed a national assessment process to identify and analyze the potential consequences of climate variability and change.
Climate variability and change pose both challenges and opportunities for the US. To be better prepared, the United States has developed a national assessment process to identify and analyze the potential consequences of climate variability and change.
Sponsors:
Students:
Sponsor: GWRI
Start Date: 1998-07-01; Completion Date: 1999-12-31;
Keywords: Climate and Hydrologic Processes, Hydrology, Management and Planning
Problem and Research Objectives:
Climate variability and change pose both challenges and opportunities for the US. To be better prepared, the United States has developed a national assessment process to identify and analyze the potential consequences of climate variability and change.
The Technical Report
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech)
This project intends at developing a state-of-the-art river basin planning and management system that can (a) assess the potential of the ACF basin to meet various water uses, and (b) quantify the trade-offs associated with various water allocation scenarios and policies. The purpose of this system is to assist the ongoing tri-state (Alabama, Florida, and Georgia) water allocation negotiation.
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech)
Sponsor: GWRI
Start Date: 1998-12-01; Completion Date: 1999-07-31;
Keywords: Hydrology, Management and Planning, Drought
Problem and Research Objectives:
This project intends at developing a state-of-the-art river basin planning and management system that can (a) assess the potential of the ACF basin to meet various water uses, and (b) quantify the trade-offs associated with various water allocation scenarios and policies. The purpose of this system is to assist the ongoing tri-state (Alabama, Florida, and Georgia) water allocation negotiation. The project is co-sponsored by citizen groups in Georgia.
This project intends at developing a state-of-the-art river basin planning and management system that can (a) assess the potential of the ACF basin to meet various water uses, and (b) quantify the trade-offs associated with various water allocation scenarios and policies.
Sponsors:
Students:
Sponsor: GWRI
Start Date: 1998-12-01; Completion Date: 1999-07-31;
Keywords: Hydrology, Management and Planning, Drought
Problem and Research Objectives:
This project intends at developing a state-of-the-art river basin planning and management system that can (a) assess the potential of the ACF basin to meet various water uses, and (b) quantify the trade-offs associated with various water allocation scenarios and policies. The purpose of this system is to assist the ongoing tri-state (Alabama, Florida, and Georgia) water allocation negotiation. The project is co-sponsored by citizen groups in Georgia.
Technical Report
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech)
This project aims at demonstrating the value of climate and hydrologic forecasts on the operation of multi-purpose reservoirs in the US.
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech)
Sponsor: GWRI
Start Date: 1997-08-01; Completion Date: 1999-06-30;
Keywords: Climate and Hydrologic processes, Hydrology, Management and Planning
Problem and Research Objectives:
This project aims at demonstrating the value of climate and hydrologic forecasts on the operation of multi-purpose reservoirs in the US.
Short Course
Instructor: Huaming Yao (GWRI/Georgia Tech)
Instructor: Aris Georgakakos (GWRI/Georgia Tech)
Sponsor: GWRI
This project aims at demonstrating the value of climate and hydrologic forecasts on the operation of multi-purpose reservoirs in the US.
Sponsors:
Students:
Technical Report
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech)
Sponsor: GWRI
Start Date: 1997-08-01; Completion Date: 1999-06-30;
Keywords: Climate and Hydrologic processes, Hydrology, Management and Planning
Problem and Research Objectives:
This project aims at demonstrating the value of climate and hydrologic forecasts on the operation of multi-purpose reservoirs in the US.
The objective of this project is to develop a decision support system (DSS) to explore various water resources planning and management scenarios in the Lake Victoria Basin. Participating countries are Kenya, Tanzania, and Uganda.
Sponsors:
Students:
Sponsor: FAO
Start Date: 1997-09-01; Completion Date: 1999-07-31;
Keywords: Climate and Hydrologic processes, Management and Planning, Hydrology, Water Quantity
Problem and Research Objectives:
The objective of this project is to develop a decision support system (DSS) to explore various water resources planning and management scenarios in the Lake Victoria Basin. Participating countries are Kenya, Tanzania, and Uganda. The Lake Victoria DSS is intended to provide the lake stakeholders with the understanding necessary to develop shared-vision water resources management strategies to be ratified by political and legal processes and to be implemented within a cooperative management framework.
Technical Report
Principal Investigator: Aris Georgakakos (GWRI/Georgia Tech)
In a predictable and inevitable demonstration of frustration with increasing tensions over interstate water allocation circumstances, Alabama brought suit in federal court against Georgia. This action precipitated formation of cooperative study efforts among the states of Georgia, Alabama, and Florida and the U.S. Army Corps of Engineers to provide the factual basis for an intersate mechanism through which the shares waters could be equitably allocated.
Principal Investigator: J. Owens Smith (University of Georgia)
Sponsor: GWRI
Start Date: 1996-06-01; Completion Date: 1996-06-01;
Keywords: interstate water law, interstate compacts, common law water rights
Description:
In a predictable and inevitable demonstration of frustration with increasing tensions over interstate water allocation circumstances, Alabama brought suit in federal court against Georgia. This action precipitated formation of cooperative study efforts among the states of Georgia, Alabama, and Florida and the U.S. Army Corps of Engineers to provide the factual basis for an intersate mechanism through which the shares waters could be equitably allocated.
The impetus for cooperation was derived from the realization that the alternate methods of allocation-equitable apportiuonment, Congressional apportionment, and allocation via the dormant commerce clause – were all less acceptable to the states.
Georgia entered the negotiations with a long history of water allocation litigation as well as recent legislative efforts to alter historical tenants of state surface and groundwater law.
The use of microorganisms and small aquatic organisms as monitors of water and sediment quality is increasing and therefore the development of improved methodology and new technologies that facilitate the handling of these organisms is a high priority. Methodological changes that have occurred in the last several years have included a concerted effort to monitor changes in organism health at the molecular level. This is in stark contrast to assays that simply measure a single data point such as the LC50.
Principal Investigator: Diana L. Bittner (Georgia Institute of Technology)
Principal Investigator: Greta Olsen (Georgia Institute of Technology)
Principal Investigator: Kenneth D. Hughes (Georgia Institute of Technology)
Sponsor: GWRI
Start Date: 1995-04-01; Completion Date: 1996-04-01;
Keywords: fluorescence, rapid toxicity assays, enzyme activity, selectivity
Description:
The use of microorganisms and small aquatic organisms as monitors of water and sediment quality is increasing and therefore the development of improved methodology and new technologies that facilitate the handling of these organisms is a high priority. Methodological changes that have occurred in the last several years have included a concerted effort to monitor changes in organism health at the molecular level. This is in stark contrast to assays that simply measure a single data point such as the LC50. The ultimate goal in these molecular level assays is to rapidly ascertain the very first sign of stress in an organism exposed to a water or sediment based toxicant. One of the first indicators of stress in many organisms is a perturbation in enzyme activity associated with metabolism or detoxification. Perturbations in enzyme activity may be monitored with high sensitivity by utilizing fluorescence techniques.
Design of rapid toxicity assays for accessing water and sediment quality demands simple experimental protocols that do not involve complicated fluorogenic substrate delivery mechanisms, time consuming steps for the separation and isolation of the resulting fluorophore, and expensive fluorescence intensity measurement instrumentation. Improvements in any one of these areas ultimately translate into more sensitive and reliable ecological data. Recently, fluorogenic substrates incorporating micron-diameter polymeric particles have been synthesized and investigated as a novel means of quantitating enzyme activity in the digestive tract of microorganisms. This project involved obtaining initial experimental evidence that this new technology (enzyme probes) can reduce, and in some cases eliminate, the limitations of using soluble enzyme substrates for toxicity measurements in whole organisms. Brachionus calyciflorous (rotifer) and Nannochloris (green algae) were used in these studies. It was clearly demonstrated that the enzyme probes based upon micron-diameter particles could be ingested by the rotifers, facilitating simultaneous measurement of ingestion rate and enzyme activity. These enzyme probes, however, were not accessible to the Nannochloris cells. These results provide evidence that enzyme probes based upon microndiameter particles will be useful in the targeting of rotifers and similar organisms in the presence of single cell organisms in aquaculture and field samples.