Auxiliary Material for
Ecosystems and societies use similar strategies to guarantee water supply.
Authors:
H. Gaoa, M. Hrachowitza, S.J. Schymanskib, F. Feniciac,a, N. Sriwongsitanond, H.H.G. Savenijea,e
Affiliations:
a
Delft University of Technology, Water Resources Section, 2600GA Delft, Netherlands
b
ETH Zurich, Department of Environmental Systems Science, 8092 Zurich, Switzerland
c
EAWAG, Department of System Analysis, Integrated Assessment and Modelling, 8600
Dübendorf, Switzerland
d
Kasetsart University, Department of Water Resources Engineering, 10900 Bangkok, Thailand
eUNESCO-IHE Institute for Water Education, 2611AX Delft, Netherlands
Geophysical Research Letters, 2014
Introduction
There are two files in the Auxiliary Materials. “ds01.xlsx” is the dataset file of 6 catchments in
the upper Ping River basin in Thailand. The way to get other open accessible datasets in the US is
mentioned in the main manuscript and not repeat in the supporting materials. “SI.pdf” contains
the supporting figures and tables, which are not shown in the main manuscript.
1. The “ds01.xlsx” contains hydrological and meteorological data for 6 catchments from 1995 to
2005 in the upper Ping River basin in Thailand as observed by Royal Irrigation Department in
Thailand and Thai Meteorological Department. This dataset is given in " ds01.xlsx", with 6
sheets. The names of the sheets are the names of observed catchments, such as "P.4A" sheet
is the observed dataset in catchment "P.4A".
1.1. Column “YY”, year.
1.2. Column “MM”, month.
1.3. Column “DD”, day.
1.4. Column “Rainfall”, mm/d, observed daily precipitation.
1.5. Column “Runoff”, mm/d, observed daily runoff depth.
1.6. Column “T_mean”, degrees Celsius, observed average daily air temperature.
1.7. Column “T_max”, degrees Celsius, observed maximum daily air temperature.
1.8. Column “T_min”, degrees Celsius, observed minumum daily air temperature.
2. The “SI.pdf” has four supporting figures and three supporting tables. This figures show the
intermediate processes of our method to estimate the root zone storage capacity by MCTGumbel approach and the results in six catchments in Thailand, which are not shown in the
main manuscript. The tables show the detailed information of 6 catchments in Thailand and
323 catchments in the US, and the equations of hydrological model. The detailed description
of these figures and tables can be found in their captions in “SI.pdf”. This “Readme” file only
describes the general contents of these figures and tables.
2.1. Figure S1 . a) Mass Curve Technique (MCT) diagram, used to design the required
storage of reservoirs to meet a given water demand. b) application of the MCT to
determine root zone storage capacity; c) an example of the application of MCT in the
P.4A basin which is one of the sub-basins of the upper Ping River basin in Thailand; d)
extend the estimated annual required root zone storage capacity into certain return
periods, and compare with calibrated root zone storage capacity.
2.2. Figure S2. Root zone storage capacities related to different drought return periods as
estimated using the Gumbel distribution for the 6 study catchments in Thailand. And the
comparison between root zone storage capacities obtained by MCT-Gumbel method and
optimized value by FLEX hydrological model.
2.3. Figure S3. MCT plots for the 6 study catchments in Thailand
2.4. Figure S4. FLEX hydrological model structure.
2.5. Table S1. Water balance equations and constitutive equations for each reservoir in the
FLEX model.
2.6. Table S2. Basic information of the 6 sub-basins of the upper Ping River basin
2.7. Table S3. Simplified eco-region classification of 323 US catchments and 6 catchments in
Thailand.