UNIVERSITY OF HAWAII SYSTEMS
The use of stable isotopes in biogenic calcium carbonate shells is a standard tool in paleoclimate studies. However, there are still outstanding issues that need to be addressed before this tool can be utilized to its full potential. Researchers at the University of Hawaii will study (1) the effects of carbonic anhydrase (CA) on the rate of oxygen (O) isotope equilibration between the dissolved inorganic carbon (DIC) species and water and (2) the effects of magnesium ions on the O isotope equilibrium between DIC-species and water. The effects of these processes will be determined using quantitative (rapid) and slow inorganic carbonate precipitation experiments.The two potential effects on oxygen isotopes that will be studied in this project are important to discern because they represent fundamental biological or chemical processes or occurrences within the marine setting. The possible influence of carbonic anhydrase is important because it plays an important role in a variety of essential processes whereas the influence of magnesium ions represents an important parameter in characterizing ocean water chemistry and its influence on chemical equilibrium.Broader Impacts: This study will contribute to the improved understanding of a tool commonly employed in paleo-climatology - oxygen isotopes in carbonate microfossils. The anticipated outcome will be an improved separation of past climate signals from undesirable biases. This separation would effectively lead to a better understanding of Earth's climate history. An additional goal of the project is to foster education of students at different levels. This study was designed in part by a graduate student who also assisted in the preparation of the project proposal.
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| AWARD OVERVIEW |
| Award Number |
0927089 |
Funding Agency |
National Science Foundation |
| Total Award Amount |
$248,760 |
Project Location - City |
HONOLULU |
| Award Date |
06/25/2009 |
Project Location - State |
HI |
| Project Status |
More than 50% Completed |
Project Location - Zip |
96822-2303
|
| Jobs Reported |
0.92 |
Congressional District |
01 |
| Project Location - Country |
US |
|
|
Recipient Information
(Grants)
| Recipient Information (Grants) |
|
Recipient Name
|
UNIVERSITY OF HAWAII SYSTEMS |
| Recipient DUNS Number |
965088057
|
| Recipient Address |
2425 CAMPUS RD SINCLAIR LIBRARY RM 1 |
| Recipient City |
HONOLULU |
| Recipient State |
Hawaii |
| Recipient Zip |
96822-2247 |
| Recipient Congressional District |
01 |
| Recipient Country |
USA |
Required to Report Top 5
Highly Compensated Officials |
No |
Projects and Jobs Information
| Projects and Jobs Information |
| Project Title |
Understanding Paleo-Climate Tools: Effects of Carbonic Anhydrase and Mg on Oxygen Isotopes in Dissolved and Solid Carbonate |
| Project Status |
More than 50% Completed |
| Final Project Report Submitted |
No |
| Project Activities Description |
Science & Technology, General/Other |
| Quarterly Activities/Project Description |
Research underway |
| Jobs Created |
0.92 |
| Description of Jobs Created |
Graduate Assitants(2) |
Purchaser Information
(Grants)
| Purchaser Information |
| Contracting Office ID |
Not Reported |
| Contracting Office Name |
Not Available |
| Contracting Office Region |
Not Available |
| TAS Major Program |
49-0101 |
| Award Information |
| Award Date |
06/25/2009 |
| Award Number |
0927089 |
| Order Number |
|
| Award Type |
Grants |
| Funding Agency ID |
49 |
| Funding Agency Name |
National Science Foundation |
| Funding Office Name |
Not Available |
| Awarding Agency ID |
49 |
| Awarding Agency Name |
National Science Foundation |
| Amount of Award |
$248,760 |
| Funds Invoiced/Received |
$188,464 |
| Expenditure Amount |
$188,464 |
| Infrastructure Expenditure Amount |
$0 |
| Infrastructure Purpose and Rationale |
Not Reported |
| Infrastructure Point of Contact Name |
Not Reported |
| Infrastructure Point of Contact Email |
Not Reported |
| Infrastructure Point of Contact Phone |
Not Reported |
| Infrastructure Point of Contact Address |
Not Reported |
| Infrastructure Point of Contact City |
Not Reported |
| Infrastructure Point of Contact State |
Not Reported |
| Infrastructure Point of Contact Zip |
Not Reported |
Product or Service Information
(Grants)
| Product or Service Information |
| Primary Activity Code |
U01 |
| Activity Description |
Science & Technology, General/Other |
| Sub-Awards Information |
| Sub-awards to Organizations |
0 |
| Sub-award Amounts to Organizations |
$0 |
| Sub-Awards to Individuals |
0 |
| Sub-Award Amounts to Individuals |
$0 |
| Number of Sub-awards less than $25,000/award |
0 |
| Amount of Sub-awards less than $25,000/award |
$0 |
| Number of payments to vendors greater than $25,000 |
0 |
| Total Amount of payments to vendors greater than $25,000/award |
$0 |
| Number of payments to vendors less than $25,000/award |
114 |
| Total Amount of payments to vendors less than $25,000/award |
$19,802 |
| Location Information |
| Latitude, Longitude |
21º 19' 10",
-157º 48' 35" |
| Congressional District |
01 |
| Address 1 |
UH MANOA |
| Address 2 |
MSB 504/528 |
| City |
HONOLULU |
| County |
Honolulu |
| State |
HI |
| Zip |
96822-2303 |
|
 |