DRRM UNIT 3 Flashcards
: It is a serious disruption of the functioning of a community or a society at any scale due to hazardous events interacting with conditions of exposure, vulnerability and capacity
Disaster
1 Disaster: It is a serious disruption of the functioning of a community or a society at any scale due to hazardous events interacting with conditions of exposure, vulnerability and capacity, leading to one or more of the following: 4
human, material, economic and environmental losses and impacts
An event caused by natural hazards such as flood, hurricane, volcanic eruption, earthquake, or landslide and cause significant damage, destruction, and loss of life.
Natural Disaster
– It’s an overflow of an expanse of water that submerges land.
Flood
7 CAUSES OF FLOOD
- Prolonged rainfall over several days/heavy rainfall over a short period of time
- Overflowing of rivers or streams
- Inadequate design or maintenance of the drainage channels and structures.
- Construction of settlements or structures in floodplains
- Poor solid waste management
- Blasting of dams
- Snowmelt
IT USUALLY TAKES _________ FOR AFFECTED COMMUNITIES TO BE REBUILT AND BUSINESS TO COME BACK TO NORMALCY
YEARS
An economic effect of flooding involves people becoming ___________
homeless
Floodwaters carry lots of ________ that are deposited in the _________
NUTRIENTS
PLAINS
5 INSTRUMENTS USED IN MONITORING
- RAIN GAUGES
- RADAR
- SATELLITE
- RIVER GAUGES / STAFF GAUGES
- DATA NETWORKS
4 Ways in how flood occurence is predicted
- Monitoring
- Analysis
- Preparation of the Forecast and Warning
- Dissemination of the Flood Forecast and Warning
They capture the actual amount of precipitation that has fallen at a particular location, allowing for accurate and localized rainfall data.
Rain Gauges
Rain Gauges are used for collecting rainfall data such as the _________ & ______of rainfall.
INSTRUMENTS USED IN MONITORING
intensity and duration
used to locate and measure precipitation by using radio waves that travels through the atmosphere and interact with raindrops, or other form of precipitation
INSTRUMENTS USED IN MONITORING
Radar
Radars can measure the__________________, allowing meteorologists and hydrologists to assess the severity of rainfall events.
INSTRUMENTS USED IN MONITORING
rate at which rain is falling
– equipped with sensors which can estimate rainfall from above, these sensors measure the characteristics of clouds, such as their temperature, water content to infer rainfall intensity and duration.
INSTRUMENTS USED IN MONITORING
Satellite
these are instruments installed at a specific locations along rivers.
INSTRUMENTS USED IN MONITORING
River gauges/Staff gauges
They provide a quick visual reference of the water level.
INSTRUMENTS USED IN MONITORING
River gauges/Staff gauges
These networks collect data from multiple locations and transmit it to different servers of participating agencies
INSTRUMENTS USED IN MONITORING
Data Networks
The data collected are analyzed. The general objective here is to deduce the probable development in the hydrological situation in the river basin in the near future.
Ways in how flood occurence is predicted
Analysis
The general objective of Analysis is to_____________________ in the hydrological situation in the river basin in the near future.
deduce the probable development
. Upon receipt of the coded messages, they are decoded and each set of observations is plotted in symbols or numbers on weather charts over the respective areas or regions.
Ways in how flood occurence is predicted
Preparation of the forecast and warning
Flood forecasts are completed in time for release at regular preset time of issuance.
Ways in how flood occurence is predicted
Dissemination of the flood forecast and warning
____________is made through disseminating agencies such as the OCD, DSWD, NDCC, and thru the mass media, particularly radio and television.
Dissemination
Dissemination is made through disseminating agencies such as these 3 agencies, and thru the mass media, particularly radio and television.
OCD (Office of Civil Defense)
DSWD
NDCC(National Disaster Risk Reduction and Management Council)