Viticulture Ch 3

Question 0

What is macroclite

Answer 0

anything as large as Bordeaux for example. tens to hundreds of kilometers

Question 1

Who introduced the 3 separate climate level

Answer 1

Richard Smart in 1984

Question 2

What is mesoclimate

Answer 2

As small as a vineyard or as large as a sub-region i.e. Pomerol

Question 3

what is the diurnal temperature range

Answer 3

it is the difference between daytime and nighttime mean temperatures

Question 4

What is evapotranspiration?

Answer 4

The amount by which plants and the soil they grow in lose water

Question 5

how many decisions are made from site selection to bottle

Answer 5

3000

Question 6

What is LTI

Answer 6

Latitude temperature index developed by David Jackson in 1994

Take the mean temperature of the warmest month multiply it by 60 minus the latitude
This system is best used for cooler more maritime regions

Question 7

How are degree days figured

Answer 7

Take the average daily temperature (the sum of the daily max and min temperatures divided by two) duringthe seven month growing season deducted by 50F (10C) and add it all up.

Question 8

What is the growing season

Answer 8

Northern Hemisphere= April to October

Southern Hemisphere= October to April

Question 9

What are the ranges for Region 1 to Region 5

Answer 9

Region 1 = 2500

Region 5 = 4000

Question 10

What method is used to determine the continentality of a site

Answer 10

MTWM - MTCM

mean temperature warm and cold months

Question 11

What is the ideal number of days without frost for a site to make successful grapes

Answer 11

180+ days

Question 12

What are somethings that are often cited as a result of global warming

Answer 12

Higher natural sugars and therefore alcohol

Question 13

What is a negative effect of global warming

Answer 13

Addition of pests and disease

Also temp changes could turn Bordeaux into Barossa and Barossa into too hot for winemaking

Question 14

What is the current northerly limit for grape growing

Answer 14

50th parallel

Question 15

Name 3 considerations when choosing a location for a vineyard

Answer 15

Water availability
Dips in land (cold air pockets, frost)
Autumn frosts
Prevailing winds

Question 16

What is the temperature change per 100m as you rise in altitude

Answer 16

0.5-.06C per 100m

Question 17

What is the ideal aspect for a site in the northern hemisphere

Answer 17

southerly up to 40degrees (this is the most extreme reasonable for harvesting). This maximizes solar radiation - insolation

Question 18

What is the thermal zone

Answer 18

slopes are warmed by airs as it travels down the slope replaced by warmer air from above

Question 19

Why would a vineyard in a cool climate want to be near a body of water?

Answer 19

Water is able to store more heat effectively than land and additionally is able to release heat.
Gulf water warm the north west coast of Europe by and estimated 9C

Question 20

On a mesoclimate name 5 vineyard regions which benefit from proximity to bodies of water

Answer 20

Bordeaux and the Gironde
Mosel and the Rhine
Burgenland and Neusiedler See
Lake Balaton in Hungary
Hunter Valley