New Protocol

ESA CCI MRLC dataset conversion to ORCHIDEE PFTs

1. GENERIC PFTs distributed by K.Harper (UCL)

V1	V2

2. Köppen-Geiger climate classification

The data are taken from http://koeppen-geiger.vu-wien.ac.at/present.htm
The original grid of 1/36=0.0277° is resampled to 0.25° by calculating the class fractions
Classes are joined into 7 groups following the table shown below
Points without data are filled by the dominant class of each latitude

KG31 to KG7	Af	Am	As	Aw	BSh	BSk	BWh	BWk	Cfa	Cfb	Cfc	Csa	Csb	Csc	Cwa	Cwb	Cwc	Dfa	Dfb	Dfc	Dfd	Dsa	Dsb	Dsc	Dsd	Dwa	Dwb	Dwc	Dwd	EF	ET
tropical	1	1	1	1
arid_warm					1		1
arid_cool						1		1
temp_warm									1			1			1
temp_cool										1	1		1	1		1	1	1
boreal_warm																			1			1	1			1	1
boreal_cool																				1	1			1	1			1	1	1	1

3. C.Still C3/C4 vegetation type partitioning (for grasses)

The data are provided by C.Still at 1/6=0.166° for 3 classes:

C3 herbaceous cover
C4 herbaceous cover
C3 tree cover

C4 fraction is calculated as C4_herbaceous_cover / (C3_herbaceous_cover + C4_herbaceous_cover)
The pixels with no C3/C4 data are considered to be pure C3
The maps are resampled to 0.25° by calculating the class fractions

4. LUH C3/C4 vegetation type partitioning (for crops)

The data are provided within TRENDY2020 (land use harmonization data) at 0.25° for 12 classes:

primf (forested primary land)
primn (non-forested primary land)
secdf (potentially forested secondary land)
secdn (potentially non-forested secondary land)
urban (urban land)
c3ann (C3 annual crops)
c4ann (C4 annual crops)
c3per (C3 perennial crops)
c4per (C4 perennial crops)
c3nfx (C3 nitrogen-fixing crops)
pastr (managed pasture)
range (rangeland)

C4 fraction is calculated as (c4ann + c4per) / (c3ann + c4ann + c3per + c4per + c3nfx)
The pixels with no data are considered to be pure C3
The LUH data are provided and used on the yearly basis

5. ESA CCI water bodies product

The water bodies product is distributed as a static map at 150 m spatial resolution
It has the distinction between ocean and inland water (legend: 0-Ocean, 1-Land, 2-Inland Water)
The data are resampled to 0.25° by calculating the class fractions
The ocean mask is defined where OCEAN > 0.999, it is used as the land-sea mask of the final map
The coast mask is defined where 0 < OCEAN < 0.999, the ocean water content at this area is excluded from the balance, the inland water content is assigned to bare soil
The land mask is defined where OCEAN = 0, the inland water content at this area is assigned to bare soil (following the cross-walking table below)

6. ORCHIDEE PFT maps production

The ORCHIDEE PFT maps are produced by combining all the products shown above using the cross-walking table (see below, in brackets: total area in Mkm²)
The resulting fractions below 0.001 are set to zero
The final fractions are normalized to have the sum across PFTs equal to one
The data are masked where OCEAN=1 or sum(GENERIC)=0

GENERIC

KG/Still/LUH

PFT1

PFT2

PFT3

PFT4

PFT5

PFT6

PFT7

PFT8

PFT9

PFT10

PFT11

PFT12

PFT13

PFT14

PFT15

TrBrEv

tropical

1 (13.77)

TrBrEv

arid_warm

1 (0.1523)

TrBrEv

arid_cool

1 (0.008954)

TrBrEv

temp_warm

1 (0.9819)

TrBrEv

temp_cool

1 (0.9989)

TrBrEv

boreal_warm

1 (0.002714)

TrBrEv

boreal_cool

1 (0.03229)

TrBrDe

tropical

1 (2.176)

TrBrDe

arid_warm

1 (0.3922)

TrBrDe

arid_cool

1 (0.04869)

TrBrDe

temp_warm

1 (1.342)

TrBrDe

temp_cool

1 (0.7328)

TrBrDe

boreal_warm

1 (2.135)

TrBrDe

boreal_cool

1 (0.7625)

TrNeEv

tropical

1 (0.0549)

TrNeEv

arid_warm

1 (0.01916)

TrNeEv

arid_cool

1 (0.06536)

TrNeEv

temp_warm

1 (1.022)

TrNeEv

temp_cool

1 (1.029)

TrNeEv

boreal_warm

1 (1.594)

TrNeEv

boreal_cool

1 (4.22)

TrNeDe

tropical

1 (0.01601)

TrNeDe

arid_warm

1 (0.01041)

TrNeDe

arid_cool

1 (0.01366)

TrNeDe

temp_warm

1 (0.02521)

TrNeDe

temp_cool

1 (0.01768)

TrNeDe

boreal_warm

1 (0.1219)

TrNeDe

boreal_cool

1 (2.177)

ShBrEv

tropical

1 (0.2985)

ShBrEv

arid_warm

1 (0.04183)

ShBrEv

arid_cool

1 (0.02984)

ShBrEv

temp_warm

1 (0.06789)

ShBrEv

temp_cool

1 (0.04876)

ShBrEv

boreal_warm

1 (3.692E-5)

ShBrEv

boreal_cool

1 (0.01846)

ShBrDe

tropical

1 (0.8805)

ShBrDe

arid_warm

1 (1.132)

ShBrDe

arid_cool

1 (0.1903)

ShBrDe

temp_warm

1 (0.18)

ShBrDe

temp_cool

1 (0.08915)

ShBrDe

boreal_warm

1 (0.0162)

ShBrDe

boreal_cool

1 (0.04638)

ShNeEv

tropical

1 (0.001368)

ShNeEv

arid_warm

1 (0.0458)

ShNeEv

arid_cool

1 (0.1434)

ShNeEv

temp_warm

1 (0.06115)

ShNeEv

temp_cool

1 (0.04497)

ShNeEv

boreal_warm

1 (0.05666)

ShNeEv

boreal_cool

1 (0.2603)

ShNeDe

tropical

1 (0.006356)

ShNeDe

arid_warm

1 (0.06844)

ShNeDe

arid_cool

1 (0.03497)

ShNeDe

temp_warm

1 (0.01333)

ShNeDe

temp_cool

1 (0.002936)

ShNeDe

boreal_warm

1 (0.007115)

ShNeDe

boreal_cool

1 (0.1306)

NatGr

tropical/C3

1 (1.047)

NatGr

arid_warm/C3

1 (2.937)

NatGr

arid_cool/C3

1 (6.704)

NatGr

temp_warm/C3

1 (3.04)

NatGr

temp_cool/C3

1 (3.765)

NatGr

boreal_warm/C3

1 (3.425)

NatGr

boreal_cool/C3

1 (17.05)

NatGr

1 (20.29)

Crops

luhC3

1 (17.35)

Crops

luhC4

1 (4.724)

1 (18.55)

Water

inland

1 (5.057)

SnowIce

1 (15.32)

Urban

tropical/C3

0.8 (0.01335)

0.2 (0.003337)

Urban

arid_warm/C3

0.8 (0.0207)

0.2 (0.005174)

Urban

arid_cool/C3

0.8 (0.02077)

0.2 (0.005194)

Urban

temp_warm/C3

0.8 (0.1346)

0.2 (0.03364)

Urban

temp_cool/C3

0.8 (0.1099)

0.2 (0.02747)

Urban

boreal_warm/C3

0.8 (0.04852)

0.2 (0.01213)

Urban

boreal_cool/C3

0.8 (0.005445)

0.2 (0.001361)

Urban

0.8 (0.1584)

0.2 (0.03959)