Water is a valuable natural resource that is essential to all aspects of life on Mother “Earth” In fact, our planet is covered by 70% of water, but only 3% of the total water is in the form of freshwater, and again two-thirds of that is in the form of glaciers or is unavailable for our use. Presently, 1.1 billion people globally lack access to good drinking water resources, and another 2.7 billion find water scarce for at least one month of the year.

With growing urban population and land use changes, water scarcity will be exacerbated, and also with climate change and bio-energy demands amplify the complex relationship between world development and water demand. The chapters cover the topic of:

Introduction to Remote Sensing and Its Applications

Quantitative Evaluation of Geomorphology Using Geo-Spatial Techniques

Insights into the Groundwater Resource Mapping

Assessing Spatial Changes in Blue and Green Water Resources

GIS Tools for Mapping the Spatio-Temporal Trends in Rainfall Distribution

Geographic Information System (GIS): A Practical Guide Towards Data Visualization, Analysis

 and Map Preparation

Dr. Surendran U: Principal Scientist &Head , Land and Water Management Research Group (LWMRG), CWRDM, completed his Ph.D.and M.Sc.in Soil Science and Agricultural Chemistry. He is a recipient of Young Achiever award from SADHNA,Young scientist project by Department of Science and Technology (DST -SERC-Fast track). He is the editorial board member of Agricultural Water Management, Elsevier publishers, handling editor of Nature - Scientific reports, nature publishing group, and member - International Society for Agricultural Meteorologists, Netherlands etc.His research interest includes Decision Support systems for soil nutrient budgeting and its impact on crop yield, Adsorption of nutrient / Modeling nutrient behaviour in soils and its chemistry, Carbon Sequestration in soils, Climate change and its impact in agriculture, Crop Simulation Modelingetc. He has around 100 national and international publications. He handled different plan funded and external funded projects of CWRDM.

Dr. K. Ch. V Naga Kumar: is working as Scientist at Information Systems Facility of LWMRG, CWRDM. He completed his Ph.D. in Geo-Engineering (Remote Sensing and GIS)

and M.Tech in Remote Sensing and GIS. He is a recipient of "Prof.K.Nageswara Rao Endowment Young Achiever Award-2016" by Indian Society of Geomatics (ISG) and International Union for Quaternary Research (INQUA) Travel grant under Young Researcher category for attending INQUA Congress held at Nagoya, Japan during 26 July - 2 August, 2015.He is a member of Indian Society of Remote Sensing and Indian Society of Geomatics.His research interest includes Coastal Morphodynamics and Holocene Delta Evolution. He has more than 40 publications and handling different plan funded and externally funded projects of CWRDM.

Dr. Naveena K: Scientist, LWMRG, CWRDM completed his Ph.D.in Agricultural Statistics. He is a recipient of Young Achiever Award, Society for Advancement of Human and Nature (2015), SP Dhall Distinguished publication award in Statistics Society for Advancement of Human and Nature (2015) and Young Scientist award ASTHA Foundation 2015. He is a member of Indian Society of Agricultural Statistics (ISAS), Statistics Society for Advancement of Human and Nature (ASTHA) Foundation and Science and Tech Society for Integrated Rural Improvement. His research interest includesMachine Learning Modelling, Forecasting Modelling, Multivariate Analysis and Design of Experiment. He has more than 30 national and international publications.

1. Introduction to Remote Sensing and Its Applications

Naga Kumar K.Ch. V, Surendran U., Naveena K. and Manoj P. Samuel

2. Quantitative Evaluation of Geomorphology Using Geo-Spatial Techniques: A Case Study of Chaliyar River Basin, India

Prajith V. and Rishma C

3. Insights into the Groundwater Resource Mapping: Example from Kerala State, India

Raicy M.C. Arul T., Aju C.D. and Achu A.L.

4. Assessing Spatial Changes in Blue and Green Water Resources: A Case Study of Valapattanam River Basin Using SWAT Model

Sharannya T.M. and Farissa Razack

5. GIS Tools for Mapping the Spatio-Temporal Trends in Rainfall Distribution: A Case Study of Kerala State, India

Fathima J.P. , Shahanas P.V. , Naveena K. and Naga Kumar K. Ch. V.

6. Geographic Information System (GIS): A Practical Guide Towards Data Visualization, Analysis and Map Preparation

Naga Kumar K. Ch. V.1, Nasih K., Thomas N., Namitha T and Naveena K