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AbstractSince its publication in 1909, Daniel Burnham's Plan of Chicago has been criticized for its lack of attention to social issues and for the failure of subsequent reconstruction projects to live up to the ambition of the plan. These criticisms assume that the Plan of Chicago was insufficiently progressive, or they evaluate the Plan by reference to the successes and failures of subsequent decades of urban reconstruction in Chicago. This article argues that the key to understanding the Plan of Chicago is to place it in its historical context. Burnham's Plan of Chicago was an expression of the tradition of Chicago civic boosterism and earlier city‐building practices as much as it was of the nascent profession of city planning. Finally, while the Plan did neglect housing, poverty, and other social questions, it did possess a social vision based on civic inclusivity, rather than economic inclusivity. The Plan can be read as a reform document based on the assumption that physical environment shapes individual character and social relationships. It assumed the creation of a unified and harmonious physical city would produce a contented and productive citizenry. In short, the Plan of Chicago deployed a transformative vision in the service of conservative goals.

The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) was launched to the International Space Station on 29 June 2018 by the National Aeronautics and Space Administration (NASA). The primary science focus of ECOSTRESS is centered on evapotranspiration (ET), which is produced as Level-3 (L3) latent heat flux (LE) data products. These data are generated from the Level-2 land surface temperature and emissivity product (L2_LSTE), in conjunction with ancillary surface and atmospheric data. Here, we provide the first validation (Stage 1, preliminary) of the global ECOSTRESS clear-sky ET product (L3_ET_PT-JPL, Version 6.0) against LE measurements at 82 eddy covariance sites around the world. Overall, the ECOSTRESS ET product performs well against the site measurements (clear-sky instantaneous/time of overpass: r2 = 0.88; overall bias = 8%; normalized root-mean-square error, RMSE = 6%). ET uncertainty was generally consistent across climate zones, biome types, and times of day (ECOSTRESS samples the diurnal cycle), though temperate sites are overrepresented. The 70-m-high spatial resolution of ECOSTRESS improved correlations by 85%, and RMSE by 62%, relative to 1-km pixels. This paper serves as a reference for the ECOSTRESS L3 ET accuracy and Stage 1 validation status for subsequent science that follows using these data. ; We thank B. Freepartner, M. Sikka, F. Galvan, and R. Littles for software assistance. We thank Peter Blanken, James Cleverly, Higo Jose Dalmagro, Ken Davis, Eric Dufrene, Beverly Law, Marcy Litvak, Kim Novick, Matti Rasanen, Russell Scott, and Dan Yakir for contributing data. The journal editors and anonymous reviewers provided useful suggestions to improve the paper. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. California Institute of Technology. Government sponsorship acknowledged. Support was provided by NASA's ECOSTRESS mission.