The Large Data Set

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O Y L L H K X W Y D M T I U L B X A A F B
A S D L K C W T T A M L M N O M D I G E W
X T I A O D T S I I C H B H D E A T T H K
G B B F G A A U L L E D M W P E I L Y G L
G N T N N I I G I Y I A L W O Q L D B H B
B D Q I V L H M B M R I Y E N B Y R P Q F
Y H F A I Y T U I E Y L K L A S M O A R I
W X Y R C T B M S A X Y L A E B E I O B L
N W I L C O I I I N A M V C T P A N M L E
A S V A C T K X V T P E Q S G X N G C M B
M S G T G A J A N E N A H T C A C M K V M
A F G O N L A M A M F N C R I O L E I E G
Y Y J T O S T Y E P M P J O M M O J B O P
O T E Y S U G L M E P R C F M O U J E L A
I U N L B N O I Y R P E A U R P D V D K T
J G T I S S K A L A G S B A N E C B X R W
G D R A Q H L D I T J S D E N X O M D N G
H J Q D O I O F A U B U V B N X V F W M I
I K Q R N N T J D R E R T N J W E L L N F
V J P N M E K U P E N E A R E S R N R U A
H O A E D A O H R B Y C F M X O O F B A J

Clues

  • in decametres (Dm); greatest horizontal distance at which an object can be seen in daylight (5, 4, 10)
  • in degrees; average of the hourly readings during a 24 hour period (5, 4, 11)
  • in hectopascals (hPa) = 100 Pa (5, 4, 8)
  • in knots; highest instantaneous windspeed record; direction is recorded too (5, 7, 4)
  • in mm; including solid precipitation such as snow and hail, but is melted before measured; less than 0.05mm is recorded as 'trace' (5, 5, 8)
  • in oktas = 1/8th of the sky (5, 4, 5, 5)
  • Recorded to the nearest tenth of an hour (5, 5, 8)
  • Used to categorise mean windspeed (8, 5)

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