Capmes is an instrument capable of measuring the water level and the concentration of suspended matter in rivers with a time step going from one measurement every hour at low flow to one measurement every 2 minutes during a flood. The instrument, designed by IPGP, is based on the use of a LISST-25X optical sensor (Sequoia Scientific Inc.) [Limare et al., 2010; Lajeunesse et al., 2011]. The latter is incorporated in a complex hydraulic and electronic system controlled by a datalogger. As a result, it functions as s stand-alone instrument capable of 1) performing long surveys with a minimum human intervention and 2) acquiring data even under extreme climatic events. This instrument was developed and tested during a 1.5 years field survey performed from June 2008 to January 2010 on the Capesterre river located on Basse-Terre island (Guadeloupe archipelago, Lesser Antilles Arc).

A rain gauge with tipping buckets of 0.5 mm increments monitors the rainfall rate at the Savane à Mulets site, located on the flanks of the Soufrière volcano. The rain gauge is connected to a datalogger (CR300, Campbell Scientific Inc.) which records the data every 6 minutes. Time is specified in GMT.

The "Maison de la Forêt 2" weather station is located near the bridge on the site of the Maison de la Forêt. It has been monitoring the weather in the Bras-David watershed since 2018/10/19. It replaces the former "Maison de la Forêt" station, which was located on the roof of the National Park House, and ceased to operate in July 2019. The "Maison de la Forêt 2" weather station is equipped with a tipping bucket raingauge (ARG100 Tipping Bucket Raingauge, Campbell Inc.) which measures the cumulative rainfall between two consecutive measurements, a thermometer (Campbell Scientific Inc.: CS107 Temperature Probe) which measures the air temperature, inside a shelter (RAD06, Campbell Inc.). This shelter protects the sensor from solar radiation, heavy rain, and insect intrusions. The measurement time is specified in GMT.

We used a Lisst-StreamSide (Sequoia Scientific, Inc.) to monitor the suspended load concentration in the Capesterre river from July 2010 7/10/2010 to August 2012. This instrument is a laser particle sizer specifically designed for monitoring shallow rivers, streams, or ponds. The LISST-StreamSide measures the suspended particle size and concentration in 32 logarithmically spaced size classes. The upper size in each size class is 1.1809 times the lower size.

A weather station (Basic Weather Station BWS200 , Campbell Scientific Inc.), located on the La Digue site, monitors the meteorological conditions in the Capesterre catchment. The station is equipped with a tipping bucket raingauge (ARG100 Tipping Bucket Raingauge, Campbell Inc.) which measures the cumulative rainfall between two consecutive measurements, a thermometer (Campbell Scientific Inc.: CS107 Temperature Probe) which measures the air temperature, a pressure sensor (CS100, Campbell Scientific Inc.) which measures the atmospheric pressure. These sensors are connected to a datalogger (Campbell CR800) which records the data every 10 minutes. The measurement time is specified in GMT.

A weather station (Basic Weather Station BWS200 , Campbell Scientific Inc.) monitors the meteorological conditions in the forest parcel of the Quiock creek catchment. The station is equipped with a tipping bucket raingauge (ARG100 Tipping Bucket Raingauge, Campbell Inc.) which measures the cumulative rainfall between two consecutive measurements, a thermometer (Campbell Scientific Inc.: CS107 Temperature Probe) which measures the air temperature. These sensor are connected to a datalogger (Campbell CR800) which records the data. Note that the measurement time step was set to 1 minute up to 2020-09-30 12h55. From that moment on, the measurement time step was set to 5 minutes.The measurement time is specified in GMT

Water level, discharge, temperature, conductivity and turbidity measured as a function of time (GMT) in the Capesterre river, at the Capesterre - La Digue hydrologic station. The station is equipped with a pressure sensor (CS451, Campbell Scientific Inc.) measuring the river stage, a turbidimeter (OBS3+, Campbell Scientific Inc.) measuring the turbidity of the river, a conductivity probe (CS547A, Campbell Scientific Inc.) monitoring the water conductivity, 2 temperature probes embedded in the conductivity and the pressure sensors. These sensors are connected to a datalogger (Campbell CR800) which records the data. A gaujing curve, regularly updated by the DREAL Guadeloupe, relates the river discharge to the water stage.

Water level, discharge, temperature, conductivity and turbidity measured as a function of time (GMT) in the Bras-David river, at the Maison de la Foret hydrologic station. The station is equipped with a pressure sensor (CS451, Campbell Scientific Inc.) measuring the river stage, a turbidimeter (OBS3+, Campbell Scientific Inc.) measuring the turbidity of the river, a conductivity probe (CS547A, Campbell Scientific Inc.) monitoring the water conductivity, 2 temperature probes embedded in the conductivity and the pressure sensors. These sensors are connected to a datalogger (Campbell CR800) which records the data. A gaujing curve, regularly updated by the DREAL Guadeloupe, relates the river discharge to the water stage.

The "Maison de la Forêt" weather station, located on the roof of the National Park House, monitored the rainfall rate and the air temperature as a function of time (GMT), in the Bras-David catchment from 2011/11/23 to 2019/07/20, when it ceased to operate.

DescriptionWater level, discharge, temperature, and conductivity measured as a function of time (GMT) in the Quiock creek station. The stream flows through a Venturi flume (exponential cross section, ISMA Type III) equipped with a pressure sensor (CS451, Campbell Scientific Inc.) measuring the water level in the flume, and a conductivity probe (CS547A, Campbell Scientific Inc.) measuring the conductivity and the temperature of the water. These sensors are connected to a datalogger (Campbell CR800) which records the data. A calibration curve relates the river discharge to the water level.