ISSS608 2017-18 T3 Assign Gao Jiaoyang Visualization

VAST Challenge 2018 MC2: Like a Duck to Water

Background

Data Description & Data Preparation

Visualization

Conclusion & Reference

Visual Analysis

Number	Methodology	Detail
1	Measure Count A heatmap would be help to explore how many measure each location site tested.	Heatmap of Distinct Measure Count by Location Seems most of the locations took records every year since 1998. However, 3 positions include Achara, Decha, Tansanee only take records start from 2009. And during 2005-2009, all the locations recorded more measures than other years, especially in 2009.
2	Measure Record For a better understanding of the waterways situation, I made a line chart of measure overview by time which allow us to know when a measure was been recorded.	Line Chart of Measure Record The measure record is kind messy, some measure are recorded continuously since 1998. But some measure only be recorded for one year and the average value of most of them is 0. Some measures only be tested in recent years which are AGOC-3A,Chlorodinine,Methylpsmoline from 2014 and Total dissolved phosphorus from 2015. The 4 measures need analyze carefully to understand the recent situation of the pollution.
3	Water Temperature Water temperature need analyse alone due to the different unit.	line chart by Quarter Seasons may have a greater impact on water temperature, that's the reason why I show this graph in quarter. And as we can see, the highest water temperature appear in Q3 which are July, August and September (similar with the seasonality) except Sakda whose highest water temperature appears in Q2. Motion Graph of Water Temperature This motion graph can show the change of water temperature of each locations more directly.
4	Macrozoobenthos The another measure uses unique unit is Macrozoobenthos, and it also need a separated graph to show features.	Highlight Table of Macrozoobenthos Overview when hover mouse over, also shows the trend of each location in this year. The Macrozoobenthos was been recorded quite continuously except Decha which only took records for 2011 and 2016. And obviously that the values of Macrozoobenthos are quite steady during these years. However, it increased sharply in 2014 at Kannika and Sakda.
5	Chemicals Since the rest of chemicals are using the same units, so we can visual them together. Since we've already know Methylosmoline is a target chemical contaminant the investigators are looking for. I'll explore more in this one and let this as an example to show.	Trend of Methylosmoline Methylosmoline records start from 2014, and the value start to increase from 2015 from 0, although the value goes up and down during a year, but the whole trend is increasing. Motion Graph for Methylosmoline the motion graph can easily see the change trend during the three years for each location. The average values of Somchair and Kohsoom are increasing the most in 2016 from 5 to 131 and from 1 to 51 respectively.