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Table 2 Coefficients and goodness of fit of the best fit equations for the prediction of monthly Fire Density Index from Dead Ratio values for each vegetation type and region in Mexico, for the period 2003 to 2014. Veg_region: vegetation and region; Eq: best fit equation from Table 1; a, b, and rho are global parameters; a1 to a12 are parameters associated to the corresponding months (January to December) or group of months; RMSE: Root Mean Square Error; R2adj: adjusted R2; AIC: Akaike’s Information Criterion; AG: Agriculture; ARBSV: Arborous Secondary Vegetation; DTROPF: Deciduous Tropical Forest, PAS: Pastureland, PTROPF: Perennial Tropical Forest, SHSV: Shrubby Secondary Vegetation; TFOR: Temperate Forest; and NW: Northwest region, NE: Northeast region, C: Central region, S: South region

From: Temporal patterns of active fire density and its relationship with a satellite fuel greenness index by vegetation type and region in Mexico during 2003–2014

Veg_region Eq. n a a12–2 a12–2_6 a12–3 a12–3_6 a12–4_6 a3 a3_6 a4 a4_5 a4–6 a4_6 a5 a6 a5_6 a7_8 a5–8 a9–3 a9–4 a9–3_7–8 b rho RMSE R2adj AIC
TFOR_C 20    0.0194          0.022 0.02         9.2629 0.535 27.3 0.82 563
TFOR_NE 24   0.0161      0.02      0.02 0.02         9.1414 0.394 13.3 0.69 442
TFOR_NW 18       0.018        0.02         8.0916 1.479 26.5 0.72 556
TFOR_S 21     0.0161       0.015     0.01        26.057 0.321 10.5 0.71 403
PAS_C 24   0.0191      0.02      0.027 0.03         5.4058 0.398 15.6 0.96 470
PAS_NE 24   0.0195      0.02      0.024 0.03         5.5583 0.402 8 0.89 357
PAS_NW 7 0.01                     20.634 1.227 3 0.64 88
PAS_S 25   0.0528       0.102 0.18     0.2         2.2174 0.326 81.9 0.82 748
PTROPF_C 18       0.0248        0.03         6.8375 0.097 36.2 0.77 609
PTROPF_NE 23      0.0377     0.07     0.08         2.9451 0.164 17.8 0.68 490
PTROPF_NW 18       0.0212        0.03         3.3332 0.301 7.6 0.74 347
PTROPF_S 20     0.02         0.023 0.03         7.004 0.417 6.4 0.75 319
DTROPF_C 20     0.0229         0.048 0.05         3.234 0.237 17.7 0.92 489
DTROPF_NE 18       0.0412        0.05         3.9978 1.14 58.1 0.68 688
DTROPF_NW 18       0.0151        0.02         7.7482 0.892 10.6 0.86 402
DTROPF_S 7 0.03                     5.5697 0.326 30.2 0.7 255
ARBVS_C 25   0.0193       0.024 0.03     0.03         5.688 0.403 22.9 0.92 534
ARBVS_NE 24   0.0218      0.03      0.028 0.03         6.0022 0.174 9.7 0.94 390
ARBVS_NW 18       0.0208        0.02         5.8133 0.582 26.4 0.72 556
ARBVS_S 26    0.034     0.06    0.088            2.8021 0.287 32.8 0.82 264
SHVS_C 24   0.0165      0.02      0.024 0.03         6.1675 0.619 14.4 0.95 456
SHVS_NE 22      0.0176      0.022            7.1694 0.35 13.1 0.76 196
SHVS_NW 23      0.0123     0.02     0.02         5.8976 1.991 12.2 0.84 192
SHVS_S 25   0.0302       0.044 0.06     0.06         3.7905 0.244 54.8 0.8 680
AG_S 29          0.07       0.064      0.0544 3.4732 1.616 62.2 0.79 1196
AG_NW 27                  0.041   0.031   3.1607 0.821 11.6 0.7 711
AG_NE 28            0.023      0.019   0.021    5.6447 0.856 5 0.79 471
AG_C 29          0.02       0.022      0.0190 6.68 0.156 8.8 0.86 635