Evapotranspiration

Evapotranspiration
Evapotranspiration-Surface_water

Date

Evapotranspiration (ET) is the sum of water evaporation and transpiration from a surface area to the atmosphere.
Table of Contents
Table of Contents

 

Cities lack the greenery of more natural environments and that causes them to miss out on a natural cooling process called evapotranspiration.

Vancouver’s West End is a great example of this. Trees cover 18.6 per cent of the land in the West End and, as a result, its surface temperatures are closer to that of Langley or Delta.

 
The urban heat island effect. (bayareamonitor.org)

B.C. records 486 sudden deaths, almost triple the usual number, during heat wave | CBC News

 

Lapointe said B.C. had seen only three heat-related deaths in the past three to five years before the heat wave. 

“This, frankly, took many of us off guard,” she said.

Action Items:

 

  1. Lapointe said the agency will look at patterns in the deaths, including regions where they occurred, the age and sex of the person, any underlying health conditions they might have had and their type of dwelling. 

 

  1. The report will also study best practices in other jurisdictions and provide recommendations to the province. Lapointe said it will take a couple of months to complete.

 

 

‘Thirsty’ trees need help from residents, says Vancouver Park Board | CBC News

 

 Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)
Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)

A young City of Vancouver street tree on Seymour Street suffers from dry conditions. (Stephanie Mercier/CBC)

Tree math

  • Vancouver park trees: 350,000.
  • Vancouver city trees: 150,000.
  • Number of new trees to be planted by 2020: 150,000.
  • New street trees planted each year: 1,500 to 2,500.
  • New park trees planted each year: 7,000.



Vancouver trees dry out as heat wave continues to take its toll | CBC News

 

Trees along Pacific Street are among many that are losing their leaves after a record-breaking heat wave in Vancouver. (Ben Nelms/CBC)
Trees along Pacific Street are among many that are losing their leaves after a record-breaking heat wave in Vancouver. (Ben Nelms/CBC)

Trees along Pacific Street are among many that are losing their leaves after a record-breaking heat wave in Vancouver. (Ben Nelms/CBC)

 

Warmer than usual summer temperatures in store for much of B.C. | CBC News

 Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)

 

Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)

 

Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)


 

Evapotranspiration
Evapotranspiration-Surface_water

Date

Evapotranspiration (ET) is the sum of water evaporation and transpiration from a surface area to the atmosphere.
Table of Contents
Table of Contents

 

Cities lack the greenery of more natural environments and that causes them to miss out on a natural cooling process called evapotranspiration.

Vancouver’s West End is a great example of this. Trees cover 18.6 per cent of the land in the West End and, as a result, its surface temperatures are closer to that of Langley or Delta.

 
The urban heat island effect. (bayareamonitor.org)

B.C. records 486 sudden deaths, almost triple the usual number, during heat wave | CBC News

 

Lapointe said B.C. had seen only three heat-related deaths in the past three to five years before the heat wave. 

“This, frankly, took many of us off guard,” she said.

Action Items:

 

  1. Lapointe said the agency will look at patterns in the deaths, including regions where they occurred, the age and sex of the person, any underlying health conditions they might have had and their type of dwelling. 

 

  1. The report will also study best practices in other jurisdictions and provide recommendations to the province. Lapointe said it will take a couple of months to complete.

 

 

‘Thirsty’ trees need help from residents, says Vancouver Park Board | CBC News

 

 Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)
Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)

A young City of Vancouver street tree on Seymour Street suffers from dry conditions. (Stephanie Mercier/CBC)

Tree math

  • Vancouver park trees: 350,000.
  • Vancouver city trees: 150,000.
  • Number of new trees to be planted by 2020: 150,000.
  • New street trees planted each year: 1,500 to 2,500.
  • New park trees planted each year: 7,000.



Vancouver trees dry out as heat wave continues to take its toll | CBC News

 

Trees along Pacific Street are among many that are losing their leaves after a record-breaking heat wave in Vancouver. (Ben Nelms/CBC)
Trees along Pacific Street are among many that are losing their leaves after a record-breaking heat wave in Vancouver. (Ben Nelms/CBC)

Trees along Pacific Street are among many that are losing their leaves after a record-breaking heat wave in Vancouver. (Ben Nelms/CBC)

 

Warmer than usual summer temperatures in store for much of B.C. | CBC News

 Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)

 

Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)

 

Metro Vancouver field hydrologist Peter Marshall and CBC meteorologist Brett Soderholm push a snowpack measuring tool into the snow. New technology is helping provide a clearer picture of the region’s drinking water supply. (Ken Leedham/CBC)


 

More
articles

More
articles

Welcome to
Reach by Hand Heal by Heart
Evolving the Way with Ways.