1. WMO RA I WIGOS Workshop on AWS NETWORKS
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WMO RA I WIGOS Workshop on AWS NETWORKS
WINDHOEK, NAMIBIA
November 2018
Mr. TSEKOA M. D.
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Introduction
Lesotho is land locked and surrounded only by the Republic of South Africa. It is situated approximately between 28° S and 31° S latitudes and longitude 27° E and 30° E. The land area is about km².
The climate of Lesotho is primarily influenced by the country’s location in the Karoo Basin, spanning altitudes ranging from about 1,400m to above 3,480m above sea level.
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3. Digital Elevation Map of Lesotho
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Digital Elevation Map of Lesotho
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4. AWS Distribution 10 min Snow Air Temp Humidity Visibility
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AWS Distribution
10 min
Snow
Air Temp
Humidity
Visibility
Cloud height and type
Pressure
Soil Temp
Precip
Evap
Wind speed and direction
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5. AWS Data Flow Receives Data Data logger Modem Sensors
MIA Switch DB
MIA User
MIA
User
LMS
LMS Switch
LMS User
Oxbow
Req
Modem
SEM, MOK, QAC, MIA
Resolves
Dynamic IP
Receives Data
Forwards Data to HQ router
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Modem
Modem

6. Wind and solar stations Distribution
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Wind and solar stations Distribution
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7. Automatic Weather Station (AWS)
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Automatic Weather Station (AWS)
AWS Components
Data logger
Communication techniques -Push
Stored data retrieval methods
Data transmission via GSM
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8. Challenges Insufficient Budget High communications downtime
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Challenges
Insufficient Budget
High communications downtime
Insufficient Support Skills
Dis-intergrated data servers
Insufficient observation network
Calibration
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9. Data Management - Vision
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Data Management - Vision
Reliable communications
Good observation network
Fully automated data management operations
Centralized database with a backup
Skilled personnel in all areas of AWS
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10. Climsoft MySQL Archive Climsoft ACCESS Key Entry
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A WISH: Data Reception and Archival
AWS Sensors
Data Logger
Pull
AWS Base Station
3 Months Archival
Climsoft ACCESS QC
Pull
Climsoft MySQL Archive
Internet Mail Server
Temporary Archival
Permanent Archival
Non Real Time
Manual Observations
Climsoft ACCESS Key Entry
Postal Mail
Temporary Archival
Registers
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END
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