Assessment of land and water ecosystems capability to support aquaculture expansion in climate-vulnerable regions using analytical hierarchy process based geospatial analysis.

The fast-unregulated expansion of shrimp aquaculture led to increasing ecological concerns and conflicts among the coastal resource users worldwide, thus calling for techniques to identify the suitable aquaculture zones to ensure sustainability. The multi-criteria decision-support approach was used to assess the ecosystem's ability to support the shrimp farming expansion using a hierarchical analytical process based on multiple criteria decision analysis, and the assessment of the carrying capacity of the source water bodies. Eighteen thematic layers were grouped into four major groups, namely land type, source water quality, soil characteristics, and infrastructure availability.

Shoreline change and potential sea level rise impacts in a climate hazardous location in southeast coast of India.

Climate change impact on the environment makes the coastal areas vulnerable and demands the evaluation of such susceptibility. Historical changes in the shoreline positions and inundation based on projected sea-level scenarios of 0.5 and 1 m were assessed for Nagapattinam District, a low-lying coastal area in the southeast coast of India, using high-resolution Shuttle Radar Topography Mission data; multi-dated Landsat satellite images of 1978, 1991, 2003, and 2015; and census data of 2011.