Navigation Links
Australia's climate: Drought and flooding in annual rings of tropical trees
Date:6/11/2009

Annual rings are acclaimed in representing natural climate archives. For the temperate latitudes it is known that the growth of these annual rings depend mainly on temperature and precipitation. In the tropics, however, with only slight seasonal variations, the correlation is not so evident. Now scientists of the GFZ German Research Centre for Geosciences and their colleagues of the Australian National University have been able to prove that tree growth in north-east Australia depends mainly on the annual precipitation. Furthermore, in the recent edition of the journal "Climate Dynamics" (No. 33 -1, P. 63-73) they showed that growth rings are most suitable as climate proxy data for the registration of the precipitation dynamics in Australia.

Australia is periodically influenced by the climate fluctuations ENSO (El Nio Southern Oscillation) and, thus, regularly afflicted by strong periods of drought with bush fires and flooding due to extremely strong rain fall. In order to more precisely investigate the, for the Australians so important, precipitation fluctuations of the past centuries, scientists working with Ingo Heinrich of the GFZ, a member Institute of the Helmholtz-Association, examined tropical trees from the remote highland rain forests of Australia. The analysis lead to one of the few existing annual ring chronologies from tropical rain forests worldwide. "Our time line actually represents the first ever growth ring chronology in tropical Australia", says Ingo Heinrich.

To date the seasonal climate forecast for Australia has been based on calculations of the fluctuations of the indexes of ENSO or of the Interdecadal Pacific Oscillation (IPO), a method that, however, has not always proven to be reliable. "Through multiple correlation analysis we were now able to prove that the growth rings provide the better proxy data in comparison to ENSO or IPO with respect to precipitation dynamics", adds Ingo Heinrich.

In further step
'/>"/>

Contact: Franz Ossing
ossing@gfz-potsdam.de
49-331-288-1040
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2

Related biology news :

1. Amazon forest shows unexpected resiliency during drought
2. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
3. After drought, ponds keep up with the Joneses
4. New Raider Amethyst prairie verbena: conserves water, drought-tolerant
5. Moss genome shows how plants invaded the land and learned to survive heat and drought
6. Beavers can help ease drought
7. Gene that controls ozone resistance of plants could lead to drought-resistant crops
8. Drought tolerance in potatoes
9. AgriLife Research breeder develops drought-tolerant corn
10. UC Riverside botanist to study role of plants in southern Californias drought
11. New technique enables assessment of drought performance
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/17/2015)... SAN JOSE, Calif. , June 17, 2015 ... leader in human interface solutions, today announced that ... has adopted the Synaptics ® ClearPad ® ... family of display driver integrated circuits (DDICs) for ... Note Pro. By leveraging ClearPad for full in-cell ...
(Date:6/16/2015)... 16, 2015 Fingerprint Cards (FPC) raises ... it will amount to at least 340 MSEK to that ... rapid increase in market growth and orders received the revenue ... that revenue for 2015 will exceed 1,500 MSEK to an ... 2,200 MSEK. Due to receipt of orders of ...
(Date:6/11/2015)... June 11, 2015 Daon, a global ... that its IdentityX Mobile Authentication Platform v4.0 has ... Alliance is an industry consortium launched in 2013 ... simpler, stronger authentication.  In order to receive certification, ... rigorous series of tests that measure compliance and ...
Breaking Biology News(10 mins):Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3Fingerprint Cards Raises the Revenue Guidance for Q2 2015 and for the Full Year 2015 2Fingerprint Cards Raises the Revenue Guidance for Q2 2015 and for the Full Year 2015 3Daon's IdentityX Mobile Authentication Platform One of First Products to be Certified by FIDO Alliance 2
... Cold Spring Harbor, NY A rose by any ... confound scientists interested in understanding the chemical components of its ... That,s because in biology, an organism,s scientific (taxonomic) ... This data on the genetic, ecological, and agricultural particulars ...
... 31, 2012 WestPark Capital, Inc., a Los Angeles based ... non-exclusive engagement agreement with Alliqua, Inc.  During the term ... the company regarding business and finance, private and public ... its securities holders and provide introductions to investors. ...
... they do because large fish and urchins eat most of the ... has found that the greatest impact of all comes from an ... the journal Ecology Letters is the largest of its ... it was led by Associate Professor Alistair Poore, of the UNSW ...
Cached Biology News:New release of Web-based resource resolves confusion over plant names 2New release of Web-based resource resolves confusion over plant names 3WestPark Capital, Inc. Engaged By Alliqua, Inc. 2Grazing snails rule the waves 2
(Date:6/25/2015)... 25, 2015 Last June, a dedicated global team ... virus using large-scale genome sequencing. Their research, which was written ... the journal Cell (Park 2015) , reveals ... seven months of the recent Ebola outbreak. Today ... data, workflows, and full edit history of the paper ...
(Date:6/25/2015)... -- Current asthma medications, which work by suppressing ... the airways, can stop working over time. A ... Hospital and Harvard Medical School supports a surprising ... nerve endings in the lungs that help drive ... journal Neuron on June 25, the ...
(Date:6/25/2015)... MA (PRWEB) , ... June 25, 2015 , ... ... at Framingham State University will enjoy (8) new chemistry laboratories, each exclusively using ... Last week, Erlab’s team finished installing the (49) filtered fume hoods needed for ...
(Date:6/25/2015)... NEW YORK , June 25, 2015  The ... , Professor of Genome Sciences and Medical Genetics at ... the 2015 Pro Bono Humanum Award at the ninth ... ceremony.   The Pro Bono ... Professor King is the first woman recipient of the ...
Breaking Biology Technology:Open Science Takes Major Leap Forward 2Targeting Nerve Endings To Curb Allergic Asthma 2Targeting Nerve Endings To Curb Allergic Asthma 3Targeting Nerve Endings To Curb Allergic Asthma 4Targeting Nerve Endings To Curb Allergic Asthma 5This Summer Erlab Completes the Largest Installation of Filtered Fume Hoods in the World 2The Prix Galien USA Awards Committee Selects Professor Mary-Claire King as 2015 Pro Bono Humanum Honoree 2The Prix Galien USA Awards Committee Selects Professor Mary-Claire King as 2015 Pro Bono Humanum Honoree 3
... Dendreon Corporation (Nasdaq: DNDN ) management will host a conference call ... second quarter 2009 financial results. Access to the discussion may be obtained as ... 11:30 AM ET /8:30 AM PT, Date: ... (domestic) or +1-719-325-4873 (international), Webcast: www.dendreon.com (homepage and investor ...
... , , , PITTSBURGH, July 30 ... the three and six months ended June 30, 2009. , , ... Adjusted diluted EPS, which excludes the impact of certain purchase accounting items ... $0.65 for the three and six months ended June 30, 2009, compared to $0.20 ...
... a weakened strain of the malaria parasite that will be ... developed in collaboration with researchers from the US, Japan and ... Malaria kills more than one million people each year and ... of at least 35 million years of healthy, productive human ...
Cached Biology Technology:Dendreon to Hold Conference Call on Tuesday, August 11, 2009 at 11:30 AM ET 2Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 2Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 3Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 4Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 5Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 6Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 7Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 8Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 9Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 10Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 11Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 12Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 13Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 14Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 15Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 16Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 17Mylan Reports Adjusted Diluted EPS of $0.32 for the Quarter Ended June 30, 2009 18First genetically engineered malaria vaccine to enter human trials 2
... 8 micro-bore tubes to 1 outflow ... tips, Rapid (several millisecond) solution change ... prevention , Solid construction 360, 250 ... For mounting on any micromanipulator Available ...
... (BTI-TN-5B1-4) derived from Trichoplusia ni egg ... be capable of expressing significantly higher ... to other insect cells. High Five ... time as adherent cultures- Quick adaptation into ...
... Racks are ideal for storage and transport ... polypropylene racks withstand extreme temperatures, making them ... may also be autoclaved for use in ... side accommodates 0.5ml microcentrifuge tubes, the other ...
... Signet offers the most comprehensive, ... requirements. We have incorporated unprecedented quality ... capabilities. This includes proven detection chemistries ... to the TechMate protocol. It also ...
Biology Products: