Jul-15. Stream flow (m. ³/s). Simulated vs. observed streamflow in calibration and validation period - Cajueiro gauging station. Observed Streamflow (m³/s).
LAND USE CHANGE EFFECTS ON HYDROLOGICAL REGIME IN THE XINGU WATERSHED - BRAZIL Vanessa C. Dos 1Laboratoire
1 Santos ,
François
1 Laurent ,
1 Messner ,
François
2 Camila A. Abe , Ana
C.
3 Meireles
Espaces et Sociétés - Université du Maine, 2Instituto Nacional de Pesquisas Espaciais -INPE, 3Universidade Federal do Cariri
OVERVIEW The Xingu Watershed (509.000km²), located at the agricultural frontier area of Eastern Amazon is divided into areas of extensive native forests, and areas with differing levels and types of agricultural activities. This watershed has suffered intense deforestation over the last four decades, with expansion of grain cropland and cattle ranching at the southern region of the basin. As of 2004, government policies increased the discipline of environmental legislation which has since partially reduced the advance of deforestation.
AIM Model the relation between land use and water discharge of the Xingu watershed using the SWAT model, analysing the impacts of future land use scenarios.
Datasets Type
Source (date)
Description
SRTM
SRTM 3 arc-seconds for global coverage (90 meters)
Weather
INMET (1970 - 2015)
Daily temperature (min., max.), solar radiation, humidity, wind speed
Rainfall
TRMM product 3B42(19982016)
Daily TRMM radar estimates for a 0,25 grid
Land Use
TerraClass project - INPE
Land use map 1:250,000
Soil
EMPRAPA, RADAMBRASIL and pedotransfer functions
Soil map 1:250,000 and horizon specific soil properties for each soil type
ANA (1998 – 2015)
Daily and monthly streamflow
DEM
Streamflow
SIMULATIONS: Simulations are currently being performed on Iriri River sub-basin. Iriri River sub-basin
3 (Pedra do O, Cajueiro and Laranjeiras) ParaSol
0 -5000
Streamflow (m³/s) Dec-15
R2 = 0,79 NS = 0,7 PBIAS = -15,26 RSR = 0,51
Validation
4000
Streamflow (m³/s)
Calibration
Mar-12
Oct-11
May-11
Dec-10
Jul-10
Feb-10
Sep-09
Apr-09
Nov-08
Jun-08
Jan-08
Aug-07
Mar-07
Oct-06
May-06
Dec-05
Jul-05
Feb-05
Sep-04
Apr-04
Nov-03
Jun-03
Jan-03
Aug-02
Oct-15
May-15
Dec-14
Jul-14
Feb-14
Sep-13
Apr-13
Nov-12
Jun-12
Jan-12
Aug-11
Mar-11
Oct-10
May-10
Dec-09
Jul-09
Feb-09
Differences (observed and simulated streamflow) and LOESS - Cajueiro gauging station
R2 = 0,83 NS = 0,44 PBIAS = -31,86 RSR = 0,27
4000
Sep-08
Simulated Streamflow: 1998-2015
Simulated vs. observed streamflow in calibration and validation period - Cajueiro gauging station 5000
Mar-02
-6000 Apr-08
Jun-15
Dec-14
Jun-14
Dec-13
Jun-13
Dec-12
Jun-12
Dec-11
Jun-11
-4000
Dec-04
Observed Streamflow (m³/s)
Dec-10
Jun-10
Dec-09
Jun-09
Dec-08
Jun-08
Dec-07
Jun-07
Dec-06
3000 2000 1000
Obs - Sim
LOESS
2000 0 -2000
Observed Streamflow (m³/s)
Simulated Streamflow: 1998-2015
Jul-15
Jan-15
Jul-14
Jan-14
Jul-13
Jan-13
Jul-12
Jan-12
Jul-11
Jan-11
Jul-10
Jan-10
Jul-09
Jan-09
Jul-08
Jan-08
Jul-07
Jan-07
Jul-06
Jan-06
Jul-05
Jan-05
Jul-04
Jan-04
Jul-03
Jan-03
Jul-02
Jan-02
Jul-01
Jan-01
Jul-00
-4000 -6000 Jan-98 Jul-98 Jan-99 Jul-99 Jan-00 Jul-00 Jan-01 Jul-01 Jan-02 Jul-02 Jan-03 Jul-03 Jan-04 Jul-04 Jan-05 Jul-05 Jan-06 Jul-06 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 Jan-10 Jul-10 Jan-11 Jul-11 Jan-12 Jul-12 Jan-13 Jul-13 Jan-14 Jul-14 Jan-15 Jul-15
0
Jun-06
1000
-2000
Nov-07
2000
0
Jun-07
3000
LOESS
2000
Jan-07
4000
Obs - Sim
Aug-06
5000
4000
Mar-06
Calibration
Oct-05
6000
R2 = 0,36 NS = 0,81 PBIAS = -20,12 RSR = 0,18 Validation
May-05
R2 = 0,48 NS = 0,85 PBIAS = -59,29 RSR = 0,70
Oct-01
Differences (observed and simulated streamflow) and LOESS –Laranjeiras gauging station
Simulated vs. observed streamflow in calibration and validation period - Laranjeiras gauging station 7000
May-01
Simulated Streamflow: 1998-2015
Dec-00
-15000
Jul-00
-10000
Feb-00
Mar-12
Sep-11
Mar-11
Sep-10
Mar-10
Sep-09
Mar-09
Sep-08
Mar-08
Sep-07
Mar-07
Sep-06
Mar-06
Sep-05
Mar-05
Sep-04
Mar-04
Sep-03
Mar-03
Sep-02
Mar-02
Sep-01
Mar-01
Sep-00
Observed Streamflow (m³/s)
0
Research sponsored by the Université du Maine - Avenue Olivier Messiaen, 72085 - LE MANS - FRANCE
Mar-00
2000
LOESS
5000
Sep-99
4000 0
Obs - Sim
Streamflow (m³/s)
6000
Jan-00
• More investigation into the water balance components. • Model to the entire Xingu watershed. • Improves model performance (calibration and validation using others gauging stations). • Calibration and validation the sediment load. • Scenarios (Storylines and Management).
Validation
8000
Dec-05
Further Work:
10000
Jul-99
*.plant.dat
Calibration
Jun-05
ESCO, EPCO, CANMX.hru, OV_N.hru CH_N2, CH_K, ALPHA_BNK CN2, PHU_PLT, BIOMIX, SURLAG SOL_AWC, SOL_K, SOL_BD BIO_E, BLAI, DLAI, T_OPT, T_BASE, ALAI_MIN, GSI, FRGRW1, LAIMX1, FRGRW2, LAIMX2
12000
R2 = 0,89 NS = 0,89 PBIAS = -4,62 RSR = 0,14
R2 = 0,87 NS = 0,85 PBIAS = -10,81 RSR = 0,35
Jan-99
*.hru *.rte *.mgt *.bsn *.sol
Differences (observed and simulated streamflow) and LOESS - Pedra do Ó gauging station 10000
Jul-98
*.gw
Simulated vs. observed streamflow in calibration and validation period - Pedra do Ó gauging station
Sep-99
Parameter ALPHA_BF, GW_DELAY,GWQMN, GW_REVAP, REVAPMN
Dec-04
Model File
Illustration of model results for three gauging Station in Iriri Sub-basin
Jan-98
SWAT parameters used for sensitivity analysis
Streamflow (m³/s)
Annual rainfall [mm] Mean temperature [°C] Mean slope [%] Evapotranspiration method Channel routing Gauging stations used for streamflow (Q) calibration Calibration method
Streamflow (m³/s)
Climate
142.000 km2 93.88 % Forest 87.88% Acrisols/Lixisols 17 314 2% L and use, 2% Soil, 1% Slope Am after Köppen Tropical monsoon climate with 3 months dry season 2000 24 2.6 Hargreaves Muskingum
Streamflow (m³/s)
Area [km2] Dominant natural vegetation Dominant soils type No of sub-basins in the model No of HRUs Thresholds
