|Dataset||NACP Forest Age Maps at 1-km Resolution for Canada (2004) and the U.S.A. (2006)|
|Time period||1950-01-01 to 2006-12-31|
|Count||Earliest Date||Latest Date||Data Usage|
|Citations||1||2015||2015||Publications citing this dataset|
|Downloads||1522||2012-06-18||2017-12-11||14889 total files downloaded|
This data set provides forest age map products at 1-km resolution for Canada and the United States (U.S.A.). These continental forest age maps were compiled from forest inventory data, historical fire data, optical satellite data, and the images from the NASA Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS) project. These input data products have various sources and creation dates as described in the source paper by Pan et al. (2011). Canadian maps were produced with data available through 2004 and U.S.A. maps with data available through 2006. A supplementary map of the standard deviations for age estimates was developed for quantifying uncertainty. Note that the Pan et al. (2011) paper is included as a companion file with this data set and was the source of descriptions in the guide. Forest age, implicitly reflecting the past disturbance legacy, is a simple and direct surrogate for the time since disturbance and may be used in various forest carbon analyses that concern the impact of disturbances. By combining geographic information about forest age with estimated carbon dynamics by forest type, it is possible to conduct a simple but powerful analysis of the net CO2 uptake by forests, and the potential for increasing (or decreasing) this rate as a result of direct human intervention in the disturbance/age status.
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|Data File (Granule)||File Size||Dates||Latitude||Longitude|
|sc_age06_1km.tif||884.1KB||1950-01-01 to 2006-12-31||39.20N to 24.52N||81.93W to 110.23W|
|conus_age06_1km.tif||4.1MB||1950-01-01 to 2006-12-31||46.39N to 19.40N||66.25W to 141.33W|
|psw_age06_1km.tif||264.3KB||1950-01-01 to 2006-12-31||44.50N to 29.98N||108.73W to 130.71W|
|rms_age06_1km.tif||664.8KB||1950-01-01 to 2006-12-31||46.41N to 28.83N||98.22W to 125.61W|
|se_age06_1km.tif||666.7KB||1950-01-01 to 2006-12-31||39.19N to 24.48N||76.48W to 88.97W|
|can_age04_1km.tif||9.1MB||1950-01-01 to 2006-12-31||58.60N to 35.12N||43.53W to 179.25E|
|nl_age06_1km.tif||407.3KB||1950-01-01 to 2006-12-31||48.46N to 40.39N||76.83W to 104.09W|
|rmn_age06_1km.tif||284.0KB||1950-01-01 to 2006-12-31||50.83N to 40.56N||102.46W to 120.59W|
|ca04_usak06_std_1km.tif||44.0MB||1950-01-01 to 2006-12-31||49.93N to 7.71N||39.87W to 99.17E|
|ak_age06_1km.tif||227.4KB||1950-01-01 to 2006-12-31||67.01N to 48.42N||126.11W to 163.33E|
|ca04_usak06_1km.tif||17.3MB||1950-01-01 to 2006-12-31||49.93N to 7.71N||39.87W to 99.17E|
|ne_age06_1km.tif||517.2KB||1950-01-01 to 2006-12-31||46.90N to 37.56N||70.94W to 83.26W|
|pnw_age06_1km.tif||343.5KB||1950-01-01 to 2006-12-31||50.98N to 39.26N||108.96W to 133.63W|
|np_age06_1km.tif||429.8KB||1950-01-01 to 2006-12-31||47.91N to 34.35N||76.12W to 117.04W|
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Dataset Companion Files
Dataset has 2 companion files.