|
|
|
|
Development and
Application of Climate Extreme Indices and Indicators for monitoring Trends in
Climate Extremes and their Socio-economic Impacts in South Asian Countries
(APN 2005-10-NSY)
The project was awarded by Asia Pacific Network for Global
Change Research (APN), Japan, jointly to Global Change Impact Studies Centre
(GCISC) and Pakistan Meteorological Department (PMD) to analyze the trends in
extreme daily temperatures and rainfall using the climate data for the period
1971-2000 in the case of temperature and 1961-2000 for precipitation. A total
of 209 precipitation and 160 temperature stations over the five South Asian
countries comprising Bangladesh, India, Nepal, Pakistan and Sri Lanka were
analyzed. The raw daily temperature and precipitation data for the whole period
was passed through extensive quality control and homogeneity testing using
software like RClimDex and RHTest. Trends in climate extremes were calculated
using 19 core indices, 11 for temperature and 8 for precipitation. Results are
drawn on country basis as well as on regional basis.
|
Objectives
The main objectives of the project were:
-
To
build/enhance the capacity of the participants from Bangladesh, India, Nepal,
Pakistan and Sri Lanka
-
To prepare
and archive metadata as a data base for each participating country for use in
further studies
-
To
consolidate the results for a publication in an international journal
|
|
Participating Countries
-
Bangladesh (Lead
Organization, LO: Bangladesh Unnayan Parishad, BUP)
-
India (LO: Indian Institute
of Tropical Meteorology, IITM) Nepal (LO: Department of
Hydrology and Meteorology, DHM)
-
Pakistan (LO: Global Change
Impact Studies Centre, GCISC & Pakistan Meteorological
Department, PMD)
-
Sri
Lanka (LO: Department of Meteorology)
-
Australia (Lead Organization): Bureau of
Meteorology Research Centre, BMRC)
-
U.S.A. (LO: Stony Brook University, New York)
|
Work Undertaken
The work undertaken is summarized as under:
-
Collection, digitization and preparation of
metadata using appropriate software like RClimdex and Rhtest
-
A week-long APN Regional Workshop on Climate
Extreme Indices and Indicators for South Asia in Islamabad during the period
2-6 January, 2006. Scientists from the participating countries developed
expertise in the use of softwares like Rclimdex and RHtest for the quality
control and homogenization of daily climate data and in the development of
trends in climate extreme indices
-
A 3-Day Concluding Meeting on Climate Extremes
for South Asia was held in Islamabad during the period 21-23 August, 2006. The
Team Leaders/ representatives from the participating countries developed trends
in 19 out of 27 ETCCDMI (Expert Team on Climate Change Detection Monitoring and
Indices) core indices. These included 11 indices for temperature and 8 indices
for precipitation
-
Consolidation of results for international publication. (It is in the process
of being completed).The purpose of this paper is to summarize the state of our
knowledge of possible future changes in the statistical aspects of weather and
climate extremes. (Meehl G.A. et al; 2000)
|
|
Regional Picture
-
All the temperature indices TXx, TXn, TNn except TNx has
increased across the South Asia region.TNx has increased in Sri Lanka and India
whereas it has decreased in Bangladesh and Nepal and evenly poised in Nepal
-
Cool nights have decreased whereas the warm nights increased
in all the participating South Asian Countries
-
Cool days have decreased and warm days increased across the
region
-
Very wet days (R95p) and extremely wet days (R99p) have
increased in Nepal, Pakistan and India whereas these have decreased in Sri
Lanka but a mixed trend in Bangladesh
Precipitation total (PRCPTOT) has increased across the region
except in Sri Lanka where it has decreased. Indian values are not available.
|
|
|
|
|
| |
News /
Updates |
| |
Today is
6/1/2009 Checkout
our latest updates and news. |
|
|
|
| |
Search |
|
|
|