06501naa a2202041 a 450000100080000000500110000800800410001902400350006010000220009524501320011726000090024952011940025865000240145265000140147665000210149065000260151165000190153765000180155665000130157465000130158765000250160065000250162565300190165065300190166965300290168865300360171765300240175365300380177765300190181570000140183470000200184870000170186870000180188570000240190370000130192770000150194070000150195570000160197070000180198670000170200470000210202170000180204270000150206070000140207570000240208970000160211370000150212970000180214470000220216270000140218470000150219870000150221370000140222870000180224270000180226070000190227870000140229770000190231170000210233070000160235170000250236770000150239270000210240770000170242870000220244570000170246770000170248470000170250170000260251870000150254470000140255970000230257370000140259670000230261070000160263370000150264970000140266470000240267870000150270270000160271770000260273370000230275970000180278270000170280070000190281770000160283670000230285270000140287570000160288970000160290570000180292170000180293970000170295770000200297470000160299470000200301070000190303070000160304970000150306570000190308070000220309970000210312170000150314270000180315770000180317570000170319370000150321070000170322570000140324270000210325670000160327770000260329370000250331970000220334470000160336670000210338270000250340370000170342870000170344570000280346270000200349070000190351070000130352970000200354270000140356270000230357670000190359970000180361870000160363670000170365270000160366970000210368570000150370670000170372170000190373870000200375770000120377770000240378970000190381370000180383270000170385070000140386770000150388170000200389670000190391670000200393570000220395570000200397770000170399770000190401470000180403370000150405170000210406670000170408770000270410470000170413170000190414870000210416770000140418870000230420270000180422570000150424370000200425870000140427870000190429270000140431170000170432570000150434270000150435770000200437270000170439277300500440921194092020-01-27       2019    bl uuuu     u00u1 u    #d7 a10.1038/s41597-019-0196-12DOI1 aSCHEPASCHENKO, D.  aThe Forest Observation System, building a global reference dataset for remote sensing of forest biomass.h[electronic resource]  c2019  aForest biomass is an essential indicator for monitoring the Earth?s ecosystems and climate. It is a critical input to greenhouse gas accounting, estimation of carbon losses and forest degradation, assessment of renewable energy potential, and for developing climate change mitigation policies such as REDD+, among others. Wall-to-wall mapping of aboveground biomass (AGB) is now possible with satellite remote sensing (RS). However, RS methods require extant, up-to-date, reliable, representative and comparable in situ data for calibration and validation. Here, we present the Forest Observation System (FOS) initiative, an international cooperation to establish and maintain a global in situ forest biomass database. AGB and canopy height estimates with their associated uncertainties are derived at a 0.25 ha scale from field measurements made in permanent research plots across the world?s forests. All plot estimates are geolocated and have a size that allows for direct comparison with many RS measurements. The FOS offers the potential to improve the accuracy of RSbased biomass products while developing new synergies between the RS and ground-based ecosystem research communities.  aAboveground biomass  aDatabases  aForest resources  aObservational studies  aRemote sensing  aBase de Dados  aBiomassa  aFloresta  aProteção Florestal  aSensoriamento Remoto  aBases de datos  aBiomasa aérea  aEstudios de observación  aForest Observation System (FOS)  aRecursos forestales  aSistema de Observação Florestal  aTeledetección1 aCHAVE, J.1 aPHILLIPS, O. L.1 aLEWIS, S. L.1 aDAVIES, S. J.1 aRÉJOU-MÉCHAIN, M.1 aSIST, P.1 aSCIPAL, K.1 aPERGER, C.1 aHERAULT, B.1 aLABRIÈRE, N.1 aHOFHANSL, F.1 aAFFUM-BAFFOE, K.1 aALEINIKOV, A.1 aALONSO, A.1 aAMANI, C.1 aARAUJO-MURAKAMI, A.1 aARMSTON, J.1 aARROYO, L.1 aASCARRUNZ, N.1 aAZEVEDO, C. P. de1 aBAKER, T.1 aBALAZY, R.1 aBEDEAU, C.1 aBERRY, N.1 aBILOUS, A. M.1 aBIOLUS, S. Y.1 aBISSIENGOU, P.1 aBLANC, L.1 aBOBKOVA, K. S.1 aBRASLAVSKAYA, T.1 aBRIENEN, R.1 aBURSLEM, D. F. R. P.1 aCONDIT, R.1 aCUNI-SANCHEZ, A.1 aDANILINA, D.1 aTORRES, D. del C.1 aDERROIRE, G.1 aDESCROIX, L.1 aSOTTA, E. D.1 aOLIVEIRA, M. V. N. d'1 aDRESEL, C.1 aERWIN, T.1 aEVDOKIMENKO, M. D.1 aFALCK, J.1 aFELDSPAUSCH, T. R.1 aFOLI, E. G.1 aFOSTER, R.1 aFRITZ, S.1 aGARCIA-ABRIL, A. D.1 aGORNOV, A.1 aGORNOVA, M.1 aGOTHARD-BASSÉBÉ, E.1 aGOURLET-FLEURY, S.1 aGUEDES, M. C.1 aHAMER, K. C.1 aSUSANTY, F. H.1 aHIGUCHI, N.1 aCORONADO, E. N. H.1 aHUBAU, W.1 aHUBBELL, S.1 aILSTEDT, U.1 aIVANOV, V. V.1 aKANASHIRO, M.1 aKARLSSON, A.1 aKARMINOV, V. N.1 aKILLEEN, T.1 aKOFFI, J. C. K.1 aKONOVALOVA, M.1 aKRAXNER, F.1 aKREJZA, J.1 aKRISNAWATI, H.1 aKRIVOBOKOV, L. V.1 aKUZNETSOV, M. A.1 aLAKYDA, I.1 aLAKYDA, P. I.1 aLICONA, J. C.1 aLUCAS, R. M.1 aLUKINA, N.1 aLUSSETTI, D.1 aMALHI, Y.1 aMANZANERA, J. A.1 aMARIMON, B.1 aMARIMON JUNIOR, B. H.1 aVASQUEZ MARTINEZ, R.1 aMARTYNENKO, O. V.1 aMATSALA, M.1 aMATYASHUK, R. K.1 aFREITAS, L. J. M. de1 aMEMIAGHE, H.1 aMENDONZA, C.1 aMONTEAGUDO MENDONZA, A.1 aMOROZIUK, O. V.1 aMUKHORTOVA, L.1 aMUSA, S.1 aNAZIMOVA, D. I.1 aOKUDA, T.1 aOLIVEIRA, L. C. de1 aONTIKOV, P. V.1 aOSIPOV, A. F.1 aPIETSCH, S.1 aPLAYFAIR, M.1 aPOULSEN, J.1 aRADCHENKO, V. G.1 aRODNEY, K.1 aROZAK, A. H.1 aRUSCHEL, A. R.1 aRUTISHAUSER, E.1 aSEE, L.1 aSHCHEPASHCHENKO, M.1 aSHEVCHENKO, N.1 aSHVIDENKO, A.1 aSILVEIRA, M.1 aSINGH, J.1 aSONKÉ, B.1 aSOUZA, C. R. de1 aSTERENCZAK, K.1 aSTONOZHENKO, L.1 aSULLIVAN, M. J. P1 aSZATNIEWSKA, J.1 aTAEDOUMG, H.1 aSTEEGE, H. ter1 aTIKHONOVA, E.1 aTOLEDO, M.1 aTREFILOVA, O. V.1 aVALBUENA, R.1 aVALENZUELA GAMARRA, L.1 aVASILIEV, S.1 aVEDROVA, E. F.1 aVERHOVETS, S. V.1 aVIDAL, E.1 aVLADIMIROVA, N. A.1 aVLEMINCKX, J.1 aVOS, V. A.1 aVOZMITEL, F. K.1 aWANEK, W.1 aWEST, T. A. P.1 aWOELL, H.1 aWOODS, J. T.1 aWORTEL, V.1 aYAMADA, T.1 aHAJAR, Z. S. N.1 aZO-BI, I. C.  tScientific Datagv. 6, n. 198, p. 1-11, 2019.