What is a Csa climate?

[Roy]

Subject from discussions in topic: "Phy. Vivax Huang Wen zhu"

-- Devon and Cornwall are both Csa climates.

Since since the term/phrase "Csa climate" is being used in another topic, I, not being familiar with the term, looked it up. Does "Csa Climate" mean:

C - mid-latitude climates

s - dry steppeland
or is it
s - dry summers
or both?

a - hot summers


http://www.4to40.com/QA/index.asp?categ ... ounter=273

Unless you are a meteorologist (a person who studies the weather), it is unlikely that you will know that this is, in fact, a coded description of the climate of the Mediterranean regions. Devised by a Russian meteorologist, Vladimir Koppen, in the early 20th century, the code (see below) is based mainly on temperature and rainfall and is now used by climatologists throughout the world.

The climatologist's code Main groups
A - tropical rainy climates
B - dry climates
C - mid-latitude climates
D - cold snowy climates
E - polar climates
H - mountain climates

Rainfall features of area
s - dry steppeland
w - desert
f - dry summers
m - marked rainy and dry seasons
s - dry summers
w - dry winters

Other symbols
a - hot summers
b - warm summers
c - cool summers
d - cold winters
h - hot and dry climates
k - cold and dry climates

[needmore]

Roy, I believe that it was a term used to describe the climate zones in the SE US prior to 1865, at which point it became known as 'Southernmost Yankee' climate. I dunnoo, just a guess....

[Roy]

Roy, I believe that it was a term used to describe the climate zones in the SE US prior to 1865, at which point it became known as 'Southernmost Yankee' climate. I dunnoo, just a guess....

That's definitely the reason I didn't put it in all caps: CSA. Totally different meaning. Of course where I live, Tampa, is not the South, but just happens to be in the southeastern part of the USA.

[David]

God bless the CSA!

The most famous quote after The War of Northern Aggression.

"Men. We were never beaten. We simply ran out of bullets"

[needmore]

David, clearly I'm no authority on the matter but it appears to me as though God's blessing veered a tad north of the CSA

Sorry Roy, I've bastardized your thread....

[CJW]

Look it up.. Csa or a Mediterreanean climate .. look up Koppen climate classifications.

Southern California, parts of Oregon, parts of Washinton state, Southern most UK, France, Italy all belong the the Cs() catagory.

[Roy]

Look it up.. Csa or a Mediterreanean climate .. look up Koppen climate classifications.

Southern California, parts of Oregon, parts of Washinton state, Southern most UK, France, Italy all belong the the Cs() catagory.

CJW,

I did look it up. See my original post in this thread.

Mediterranean climate? That doesn't tell me anything. I live in the SunCoast climate. What does that mean?

"..look up Koppen climate classifications." I did. It's in my original post at the top of this thread. I'm asking for clarification.

"Southern California, parts of Oregon, parts of Washinton state, Southern most UK, France, Italy all belong the the Cs() catagory."

Never been to any of those places. What's the climate like? If you say "Mediterranean", then we are going in circles.

[bambooweb]

I ran the calculations at http://clem.mscd.edu/~wagnerri/Climatol ... tion.htm#C and found out that Spokane, WA is considered Csb. This is also the same as Seattle so we should be able to grow the same things right?

One odd thing that I saw in the calculations is that 16" of rain per year is not consider dry unless you have wet Summers.

Bill

[BooKing]

CSA- Can't Say Answers-like the Weathermen/women. Tomorrow will be partly sunny{also partly cloudy}- 50% chance of rain{50%chance no rain}. Who else makes a living being right 1/2 the time...

[CJW]

I ran the calculations at http://clem.mscd.edu/~wagnerri/Climatol ... tion.htm#C and found out that Spokane, WA is considered Csb. This is also the same as Seattle so we should be able to grow the same things right?

One odd thing that I saw in the calculations is that 16" of rain per year is not consider dry unless you have wet Summers.

Bill

I would do a little more reading on Koppen.

Csb: is a region that is coastal recieving less than half its rainfall in the summer than it's winter but the summer averages per month cannot reach or exceed 23c. Winters are mild.

Csa: Same as Csb execept the summer temperatures per month reach or exceed 23c.


Spokane is not Csb as it is not coastal, it is a BWk, also know as a mid latitude desert region. A Csb/Csa area would be parts of coastal Washington state,

[bambooweb]

CJW
That is what I would have thought before using the formulas on the page I linked to.

Detailed Procedure for Determining Koppen Climate Type

1. Determine whether a Climate is arid/semiarid (B climates)

a. Determine annual rainfall in mm and annual average temperature in oC

From http://www.cityrating.com/cityweather.asp?City=Spokane
r=16.5in=419.1mm
t=47.3F=8.5C

b. If r > 20(t+14) it is not a B climate. Go to Step 2

419<450 so continue

c. Determine seasonality of rainfall. Then determine BS, BW or neither according to the criteria below:

Rainfall Distribution

November to April rainfall 10.8in divided into the total yearly rainfall 16.5in = 65.4% so it says to use the Even rainfall distribution calculation.

70% of rainfall in warmest 6 months
Not a B climate Go to Step 2 r > 20(t+14)
BS (Semi-arid) 10(t+14)<r<20(t+14)
BW (Arid) r<10(t+14)

70% of rainfall in coldest 6 months
Not a B climate Go to Step 2 r > 20t
BS (Semi-arid) 10t<r<20t
BW (Arid) r<10t


Even rainfall distribution (neither of above)
Not a B climate Go to Step 2 r > 20(t+7)

419.1mm>20(8.5C+7)
419.1>310 TRUE So not a "B" climate

BS (Semi-arid) 10(t+7)<r<20(t+7)
BW (Arid) r<10(t+7)

d. For BS or BW, go to Step 3.



2. If not a B climate, identify the climate as A, C, D, or E according to temperature data
a. Temperature of coldest month > 18 oC, it is an A climate.

b. Temperature of coldest month in -3 oC to 18 oC range, Warmest month > 10 oC, it is a C climate.

c. Temperature of coldest month < -3 oC, Warmest month > 10 oC, it is a D climate.

d. Warmest month < 10 oC, it is a E climate.

Coldest month average = 27.8F = -2.33C so it is a "C" climate

3. After identifying A, BS, BW, C, D, or E, determine additional letters for subcategories.



A climates:
Af : Rainfall in driest month at least 60mm

Am: Rainfall in driest month less than 60mm, but > 100 - (annual rainfall/25)

Aw: Not Af or Am



B climates:

BSh or BWh: average annual temp. >18 oC

BSk or BWk: average annual temp. <18 oC



C climates:
Cw: at least 10 times as much precip. in wettest summer month as in driest winter month.

Cs: at least 3 times as much precip. in wettest winter month as in driest summer month.

Wettest winter month = 2.4". Driest summer month = 0.7". 2.4/0.7>3 So climate is "Cs"

Cf: Not Cw or Cs

See step 4 below.



D climates:
Dw: at least 10 times as much precip. in wettest summer month as in driest winter month.

Ds: at least 3 times as much precip. in wettest winter month as in driest summer month.

Df: Not Dw or Ds

See step 4 below.



E climates:
ET: warmest month in 0 - 10 oC range

EF: warmest month below 0 oC



4. For C and D climates, determine a third letter:
a (e.g. Cfa) : warmest month > 22 oC

b (e.g. Dsb): warmest month < 22 oC; at least 4 months > 10 oC

Warmest month average = 68.8F = 20.4C
5 months over 10C = 50F
So Climate is "Csb"

c (e.g. Cfc) : warmest month < 22 oC; 1-3 months > 10 oC

d (e.g. Dwd): coldest month < -38 oC

[BooKing]

[CJW]

First C= temperate/ mesothermal climate.
Second S= Summer aridity

a= temperature 23c or higher during at least one month during the summer.
b= lower than 23c average during summer.


Yes, but Koppen also bases the zones on plant species. Also there is a factor which was overlooked.

Now I am starting to loose it~ LOL.. You have a strong point with the formular however..


-- Spokane also has one month averaging -0.61c which puts it into an extreme (B)wk class. a classic "Cold desert" simular to Kelowna BC and Osoyoos (cactus country). Actually Kelowna is warmer.. 1.0c in Febuary and is still desert classed.. hmmm ..
In a Csb or Csa the coldest month cannot fall below -0.3c for a monthly average in winter.. Example: my area, SW of Victoria averages ~6.5c for the coldest month, with the summer temperatures and extremes in rainfall it makes the Csa class not Csb.

[foxd]

I found a map of Koppen climate classifications at:

http://geography.about.com/gi/dynamic/o ... en_map.htm

And a key to them at:

http://geography.about.com/library/weekly/aa011700b.htm

My part of Indiana seems to be a Cfa climate, Mild Mid-Latitude, Humid subtropical, Mild with no dry season, hot summer.[/url]

[CJW]

I found a map of Koppen climate classifications at:

http://geography.about.com/gi/dynamic/o ... en_map.htm

And a key to them at:

http://geography.about.com/library/weekly/aa011700b.htm

My part of Indiana seems to be a Cfa climate, Mild Mid-Latitude, Humid subtropical, Mild with no dry season, hot summer.[/url]

You are a Zone 5/6.. which makes your average in winter contintential.
you = a (Dfb).

Cfa= would be like South Carolina, New Orleans, Northern areas of Florida