Rainfall as an Abiotic Factor at Race Rocks

Rainfall  at Race Rocks. Recorded by a Davis Instruments tipping bucket rain gauge. These graphs are made possible by the website victoriaweather.ca

Hourly Rainfall today at Race Rocks

 

 

Rainfall for the past week at Race Rocks

 

 

Rainfall for the past month

Rainfall for 2020 at Race Rocks

 

 

Rainfall graph for 2019

Rainfall graph for 2018

Rainfall graph for 2017

 

ARCHIVES
2016 Rainfall for 2016
NOTE MISSING DATA in 2016 due to equipment failure
2015: Monthly Totals are shown. ( Includes data and graphs at this site.) 2014: Monthly Totals are shown. ( Includes data and graphs at this site.) 2013: Monthly Totals are shown. ( Includes data and graphs at this site.) 2012: Monthly Totals are shown. ( Includes data and graphs at this site.) 2011: Monthly Totals are shown. ( Includes data and graphs at this site.) 2010: Monthly Totals are shown. ( Includes data and graphs at this site.) 2009: Monthly Totals are shown. ( Includes data and graphs at this site.) Note : Jan to July.. equip failure. 2008: Monthly Totals are shown. ( Includes data and graphs at this site.) equipment failure gives blank records for several days 2007: Monthly Totals are shown. ( Includes data and graphs at this site.) Equip failure February March and part of April of 2007 2006: Monthly Rain Totals (includes data and graphs for part of 2006:  

Extreme values since 2006

 

 

 

The Adaptations and Response of Organisms to the Abiotic factor of Rainfall

Canada geese are dependant on the availability of fresh water at Race Rocks. During the winter, the higher level rock pools are refreshed by rainfall. There is no other natural source of water on the island. By the time their eggs hatch in June, most of the pools have dried up, so they have to take their young off the island and over to the mainland. They may make it past the eagles….(Photo by PB)

Juvenile bald eagles in very wet weather.( Photo by Pam Birley)
The availability of water for vegetation on Race Rocks has major implications for the species of plants which can survive on the island. Not only do they have to survive dessication from salt spray, but abundant water in the winter months and almost a total lack of water from June to September. One of the best grasses to tolerate these conditions is Fescue. Here you can see it growing on the natural rock outcrops on the island. 


Go to this exercise on the Water Cycle , along with other biogeochemical cycles.

Other references:  Google Climate change and Rainfall patterns

Global warming already changing rainfall... 

Wetland Conservation – Threatened by Climate Change


Rainbow West of Great Race Rocks from the remote camera 5. Image by Garry Fletcher,

Recent Posts

Water conservation

The desalination system to produce fresh water for use on the island (e.g. cooking, dishes, showers, cleaning windows, solar panels, power washing etc.) is out of commission. Drinking water is normally brought in but now so is the house water, which is pumped from a large tank on the supply vessel and to the fresh water storage container. With limited water, activities like power washing walkways or buildings are put on hold but the solar panels must be cleaned daily.  Using a brush, bucket of water and a squeegee instead of the water hose to rinse the panels, brings water consumption down to about 4L. To save water in the house, I hold off washing the dishes until the cutlery runs out, about 4 days.

Dishwashing night with views of the gulls and Port Angeles in the distance.

There is a spy glass on the fresh water tank indicating water level in inches. I arrived late in day on May 15th with 16.5″ or 1868 L of water. Today it is at 1806 L, so I’ve done well using about 9L a day. I’ll really blow the budget in 5 days when it comes time to do laundry.  Our top loading washer uses 150L of water!

Today I cleared a path (hand weeding and weed whacking) along the side of desalinator building to the water tank shed. It is the long way around to the shed but once the gulls have chicks, it is the best approach. Staying close to the buildings will protect me from angry diving gulls, I won’t have to worry about terrifying chicks hiding in the grass, and from that direction, I’ll disturb the lowest number of gulls as possible.

Cleared path in front of water tank shed (left) and the desalinator building (right). Soon the area will be full of gulls.

Wildlife notes:

No unusual visitors to the island. The four elephant seals and the pelicans are still here. The gulls are going about their pairing, mating, fighting and nest building.

Facility work

  • cleaned solar panels
  • topped up battery fluid levels
  • weeding

Vessels

  • ecotourism: 2
  • private: 2

Weather

Sunny, gentle westerly breeze until early evening. Winds forecast to reach westerly 30 in the evening so the flag will be lowered for the night. Daytime temperature: high 11, low 9.

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