Please tell us about yourself?

Greetings to all! My name is Joyeeta Poddar. I was born and raised in Lucknow, Uttar Pradesh. I have a B.A. (Hons.) Geography and an M.A, in Geography. I earned my graduate degree from University of Lucknow. and my Masters degree from Jamia Millia Islamia, New Delhi.

Currently, I am pursuing my M.Tech in Remote Sensing at Birla Institute of Technology, Mesra, Ranchi, Jharkhand.

Original Link:

https://sites.google.com/a/aag.org/mycoe-servirglobal/poddar

What is your research about ?

The research work is focused on climate change in mountain areas and used Earth observation data and geospatial technology to assess climate change and its impacts on agriculture and glacial lakes, among other things.

As a final year student of M.tech, I am presently working on my thesis that focuses on monitoring of the glacier health in Western Himalayas. My heartfelt gratitude to my mentor for considering me worthy and introducing me to the world of glaciers and making me conscious about the crucial role the glaciers play as indicators of climate change and the geospatial technologies that can be brought into use to monitor them. As a woman, I feel honored and privileged to be working in the elusive field of cryosphere, it indeed fills me with a sense of thrill and achievement!  In future, I would like to go abroad and pursue higher academics in the fascinating field of glaciers to be able to make some meaningful contribution towards the advancement of scientific knowledge and understanding of glaciers.  

How does your work benefit the society?

Glaciers in the eastern and central regions of the Himalayas are retreating at a very fast rate comparable to the glaciers in other parts of the world. The present research proposes to investigate the fact whether the glaciers of the Western Himalayas are showing the same trend or are indeed more stable and even increasing in size. This objective is to be achieved though spatio-temporal glacier health monitoring of selected glaciers from both Western and Nepal (Central) Himalayas and their comparison. As is popularly believed glaciers are an important indicator of climate change, hence any changes in climate are most likely to affect the health of the glaciers. All glaciers respond to signals of climate change either by decreasing or increasing their total mass; changes in mass eventually reflect in the changes of the glacier area and the position of the glacier terminus i.e in its retreat or advance. Relating glacier changes to climate variability and their impact underlines the need for long-term observations and measurements on mass budget, glacier dimensions, meteorological parameters and stream discharge data.

In addition to this, debris coverage has been identified to be an important contributor to glacial advance and retreat behaviors for the Himalayan Glaciers. Hence in the present proposed study, while monitoring the glacier health, an emphasis has been laid on debris cover mapping using High resolution satellite data.

Recent field studies over select glaciers in Great Himalayan Range (J&K) revealed formation of  deep longitudinal and transverse crevasses in glaciers which resulted in topographic changes over glacier surface. Therefore the study also focuses on crevasse development and detection of other morphological changes in glaciers using high resolution satellite images and DEM differencing technique.

Overall, the proposed research seeks to investigate the relationship between temporal changes over glaciers (snout position/area changes) and the resulting sediment discharge and run-off together with meteorological variability. The study would finally relate to impact assessment of glacier response to climate change in Nepal Himalayas with reference to floods in the Gangetic Plains.

MAJOR OBJECTIVES:

The present project is envisaged with the following major objectives:

1. To make a comparative study with reference to temporal snout retreat/advancement and glacier area change in a part of Zanskar Valley, (Western Himalaya, J&K, India) and Dudh Kosi, Nepal Himalayas.

2. To perform glacier domain mapping with emphasis on debris cover using high resolution satellite data and digital image processing techniques.

3. To employ high resolution data for mapping indicators of glacier health with focus on crevasse development in select glaciers

4.Morphological change detection using DEM Differencing technique.

What do you love about your job?

As a Geographer, It was a dream come true for me to get an opportunity to work with AAG! Thanks for appreciating and acknowledging our efforts and providing this platform, there is certainly a lot to gain in terms of knowledge, exposure, experiences and meeting and connecting with a new bunch of equally passion driven and motivated people across the countries uniting for a higher and nobler cause would surely be a ecstatic moment I can barely wait for!