Environmental Data Initiative logo
EDI Data Portal

This data package is not the most recent revision of a series.  (View Newest Revision)

Data Package Summary    View Full Metadata

  • End of the first growth period in central Arizona-Phoenix 2001-2002 (Day of Year)
  • Buyantuyev, Alexander; Global Institute of Sustainability
  • 2009
  • Buyantuyev, A. 2013. End of the first growth period in central Arizona-Phoenix 2001-2002 (Day of Year) ver 9. Environmental Data Initiative. https://doi.org/10.6073/pasta/29f2df75b0fc0c24dd79a1495d887991 (Accessed 2025-08-30).

  • By studying vegetation leafing phenology and its coupling with climate along the urban-rural gradient in Phoenix metropolitan region, USA, we elucidated the degree of urbanization-induced transformations of phenology and primary productivity. In this study we used time-series of Normalized Difference Vegetation Index (NDVI) from the Moderate Resolution Imaging Spectroradiometer (MODIS) and spatially interpolated rainfall. Our analyses were stratified by major land covers and dominant soil texture. We also assessed time scales at which NDVI responds most strongly to climatic factors. No distinctive patterns in phenology were found along the urban-rural gradient; however some important generalities were confirmed. Agricultural and urban developments introduce growth multimodality, which is not attributable to desert but customarily found in riparian ecosystems of the area. Despite the existence of summer flush of growth in the desert its signal is not detected by de-noised satellite data. Urban and agricultural vegetation is characterized by fast growth and senescence rates. While agriculture has the shortest growth length, most urban vegetation stays photosynthetically active for longer periods. Growth in the desert is controlled by precipitation accumulated for 2-5 months. Spatial patterns of NDVI are predicted by precipitation grids. Positive relationship between these two variables changes seasonally reaching the maximum near the peak of annual growth. Spring and summer NDVI grids are in better agreement with longer term accumulated precipitation, but the early autumn growth is correlated more with immediate rainfall. Spatial and temporal correlations of desert NDVI with temperature are negative confirming the role of temperature in stimulating water loss from the soil. Our results supported the hypothesis that coarse-textured soils limit evaporative losses of soil water and promote growth. Riparian NDVI are moderately positively correlated with temperature but only weakly with precipitation. NDVI dynamics in urban and agricultural land covers are completely unsynchronized with natural vegetation communities and decoupled with precipitation. They exhibit positive, yet low, correlation with temperature. Overall, urbanization adds a greater diversity of phenological patterns that are not determined by climatic variability. Instead, urban and agricultural vegetation dynamics is expected to be explained largely by socio-economic variables.

  • N: 33.846841      S: 33.192875      E: -111.569046      W: -112.786234
  • View Full Metadata (335 views)
  • View Quality Report
  • Data Entities:
    1. End of the first growth period in 2001-2002 (Day of Year)  (315.7 KiB; 11 downloads) 
    2. End of the second growth period in 2001-2002 (Day of Year)  (95.5 KiB; 13 downloads) 
    3. End of the first growth period in 2002-2003 (Day of Year)  (418.9 KiB; 12 downloads) 
    4. End of the second growth period in 2002-2003 (Day of Year)  (101.0 KiB; 12 downloads) 
    5. End of the first growth period in 2003-2004 (Day of Year)  (403.6 KiB; 15 downloads) 
    6. End of the second growth period in 2003-2004 (Day of Year)  (101.1 KiB; 12 downloads) 
    7. End of the first growth period in 2004-2005 (Day of Year)  (371.9 KiB; 13 downloads) 
    8. End of second growth period in 2004-2005 (Day of Year)  (73.9 KiB; 13 downloads) 
    9. Rate of greening during the first growth period in 2001-2002  (427.4 KiB; 13 downloads) 
    10. Rate of greening during the second growth period in 2001-2002  (108.0 KiB; 12 downloads) 
    11. Rate of greening during the first growth period in 2002-2003  (403.0 KiB; 10 downloads) 
    12. Rate of greening during the second growth period in 2002-2003  (101.3 KiB; 11 downloads) 
    13. Rate of greening during the first growth period in 2003-2004  (383.1 KiB; 15 downloads) 
    14. Rate of greening during the second growth period in 2003-2004  (76.2 KiB; 12 downloads) 
    15. Rate of greening during the first growth period in 2004-2005  (99.1 KiB; 12 downloads) 
    16. Rate of greening during the second growth period in 2004-2005  (12.2 KiB; 16 downloads) 
    17. Length of the first growth period in 2001 (Number of days)  (302.9 KiB; 12 downloads) 
    18. Length of the second growth period in 2001 (Number of days)  (91.5 KiB; 15 downloads) 
    19. Length of the first growth period in 2002 (Number of days)  (403.9 KiB; 12 downloads) 
    20. Length of the second growth period in 2002 (Number of days)  (101.9 KiB; 12 downloads) 
    21. Length of the first growth period in 2003 (Number of days)  (381.7 KiB; 11 downloads) 
    22. Length of the second growth period in 2003 (Number of days)  (95.3 KiB; 12 downloads) 
    23. Length of the first growth period in 2004 (Number of days)  (354.7 KiB; 14 downloads) 
    24. Length of the second growth period in 2004 (Number of days)  (70.7 KiB; 13 downloads) 
    25. Length of the first growth period in 2005 (Number of days)  (92.0 KiB; 12 downloads) 
    26. Length of the second growth period in 2005 (Number of days)  (11.9 KiB; 13 downloads) 
    27. Total number of growth periods in the period 2001-2005  (50.7 KiB; 13 downloads) 
    28. Rate of senescing during the first growth period in 2001-2002  (424.6 KiB; 12 downloads) 
    29. Rate of senescing during the first growth period in 2002-2003  (402.1 KiB; 12 downloads) 
    30. Rate of senescing during the second growth period in 2002-2003  (101.2 KiB; 14 downloads) 
    31. Rate of senescing during the first growth period in 2003-2004  (381.7 KiB; 12 downloads) 
    32. Rate of senescing during the second growth period in 2003-2004  (76.0 KiB; 12 downloads) 
    33. Rate of senescing during the first growth period in 2004-2005  (98.6 KiB; 12 downloads) 
    34. Rate of senescing during the second growth period in 2004-2005  (12.2 KiB; 17 downloads) 
    35. Start of the first growth period in 2001-2002 (Day of Year)  (304.0 KiB; 12 downloads) 
    36. Start of the second growth period in 2001-2002 (Day of Year)  (92.6 KiB; 12 downloads) 
    37. Start of the first growth period in 2002-2003 (Day of Year)  (419.2 KiB; 12 downloads) 
    38. Start of the second growth period in 2002-2003 (Day of Year)  (108.9 KiB; 13 downloads) 
    39. Start of the first growth period in 2003-2004 (Day of Year)  (395.0 KiB; 14 downloads) 
    40. Start of the second growth period in 2003-2004 (Day of Year)  (98.3 KiB; 12 downloads) 
    41. Start of the first growth period in 2004-2005 (Day of Year)  (367.8 KiB; 13 downloads) 
    42. Start of the second growth period in 2004-2005 (Day of Year)  (74.6 KiB; 13 downloads) 
  • Copyright Board of Regents, Arizona State University. This dataset is released to the public and may be used for academic, educational, or commercial purposes subject to the following restrictions: While CAP LTER will make every effort possible to control and document the quality of the data it publishes, the data are made available "as is". CAP LTER cannot assume responsibility for damages resulting from mis-use or mis-interpretation of datasets or from errors or omissions that may exist in the data. It is considered a matter of professional ethics to acknowledge the work of other scientists that has resulted in data used in subsequent research. CAP LTER expects that any use of data from this server will be accompanied with the appropriate citations and acknowledgments. CAP LTER encourages users to contact the original investigator responsible for the data that they are accessing. Where appropriate, researchers whose projects are integrally dependent on CAP LTER data are encouraged to consider collaboration and/or co-authorship with original investigators. CAP LTER requests that users submit to the Center for Environmental Studies, ASU, one copy of any publication resulting from the use of data obtained from this site. CAP LTER requests that users not redistribute data obtained from this site. However, links or references to this site may be freely posted.
  • https://doi.org/10.6073/pasta/29f2df75b0fc0c24dd79a1495d887991

Copyright 2025 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

UNM logo UW-M logo