2. INTRODUCTION:
The Himalayas, the youngest and one of the most fragile
mountain systems in the world. Some of the rivers of the
Koshi system, such as the Arun, the Sun Kosi and Bhote
Koshi, originate in the Tibet Autonomous Region of China.
It is one of the largest tributaries of the Ganges. In my
study area mostely pro-glacier lakes generated due to the
global warming hence the GLOF is the prominent case in
nepal ,consiquently the lower part of the kosi is hugely
effected by flood. and shifting aprox 120 km over in 250
years.
3. In the early 1960 to 1970, some studies were initiated by
foreign scientists and Nepalese professionals became
involved the Mt. Everest region are retreating at a rate of
10 to 60 m per year on average.
From early 1970 to 2000, about 6% of the glacier area in
the Tamor and Dudh Koshi sub-basins of eastern Nepal
has decreased. The shrinking and retreating of the
Himalayan glaciers along with the lowering of glacier
surfaces became visible after early 1970 and increased
rapidly after 2000.
4.
5. Why GLOF Study is requiired?
The Glaciological research has indicated that the
Glaciers(both clean type and debris covered glaciers)
have undergone tremendous changes through out the
world in terms of snout retreat and shrinkage.
In some of the cases the effect is the formation of
huge moraine dam glacial lakes in case of receding
debris covered glaciers.
Such natural processes will lead to chances of
moraine dam failure.
The sudden high discharge from the Moraine dam
failure leads to Glacial Lake Outburst Flood (GLOF),
and effected in the down stream region.
6. .
STUSY AREA:
The selected study area
29 ° 09’ 45”N to 26° 38’ 03” N and
85° 23’ 35” E to 88° 56’ 22” E
comes under and lower china (tibet) upper Nepal region
UPPER KOSI CATCHMENT
7. Objectives :
1. prepare the land use / land cover map .
2. Glacier mapping in upper kosi catchment.
3. Mapping of pro-glacier lake in the region.
4. Evaluatry relationship of glacier morphometry and
shrinkage glacier, pro-glacier lakes formation using
temporal satellite data.
8. DATA REQUIREMENT:
I have been downloaded the landsat data from
1989,2001 &2010 . But we want some data for analysis .
1: LISS-3
2: LISS-4 AND
3: CARTOSAT DATA
9. Methodology:
Temporal morphometric in selected
glacier and pro- glacier lakes
DATA SOURCE
Satellite image (LANDSAT ETM+,
LISS-3,LISS-4 ,CARTOSAT)
DEM data
ASTER
Georeferencing
Study area extraction
Supervised
classification
Land-use/ land cover
map(glacier,lake,fore
st, agriculture)
Glacier
mapping(1989,2001, 2010)
Pro-glacier lake
mapping(1989,2001 to 2010)
Calculate the morphometric parameter
(length, breadth, area ,perimeter)
Temporal variation and relationship between glacier
and pro-glacier lake
10. Anticipated result:
1: We will see the temporal variation in the
glacier and pro-glacier lakes .
2: we will find out the relationship between pro-
glacier lake and glacier .
11. REFERENCES:
1). “A state of art review of glacier studies, glacier retreat and climatic change:State-of-Art
Review of Glacial Studies,”
- V.K.Raina, Ex. Deputy Director General, Geological Survey of India.
2). ”Witnessing Change: Glaciers in the Indian Himalayas”
- Rajesh Kumar, G Areendran, Prakash Rao.
3). “Glaciers, Glacial Lakes and Glacial Lake Outburst Floods in Nepal”
Samjwal Ratna Bajracharya
4). “Glaciers, glacial lakes and glacial lake outburst floods in the Mount Everest region,
Nepal”
Samjwal Ratna BAJRACHARYA, Pradeep MOOL
5). Glacial retreat in Himalaya using Indian Remote Sensing satellite data
- Anil V. Kulkarni1, I. M. Bahuguna1, B. P. Rathore1, S. K. Singh1,
S. S. Randhawa2, R. K. Sood2 and Sunil Dhar3
