References
- CIA. 2017. The world factbook. https://www.cia.gov/library/publications/the-world-factbook/geos/kz.html. Accessed May 25.
- Donley A. 2016. June 15. Sub-Saharan Africa taking in more wheat. World-Grain.com. http://www.world-grain.com/articles/news_home/Features/2016/06/Sub-Saharan_Africa_taking_in_m.aspx?ID=%7BB08ECA1C-FB6C-4B9C-9180-DAD20C6BBDC1%7D. Accessed January 13.
- Ehrlich PR, Holdren JP. 1971. Impact of population growth. Science. 171(3977):1212–1217. https://doi.org/10.1126/science.171.3977.1212.
- Ephraim M, Nkonya M, Bekele S, Msangi S. 2007. Food security in the drylands of South Asia and Sub-Saharan Africa. International Food Policy Research Institute. http://www.ifpri.org/publication/food-security-drylands-south-asia-and-sub-saharan-africa. Accessed October 21, 2017.
- EM-DAT. 2011. The international disaster database. http://www.emdat.be/old/Documents/Publications/publication_2004_emdat.pdf. Accessed October 21, 2017.
- Euronews. 2017. Devastating drought. http://www.euronews.com/2017/11/09/drought-across-spain-and-portugal-raises-alarm. Accessed December 12.
- FAO. 2017. How close we are to zero Huhnger. http://www.fao.org/state-of-food-security-nutrition/en/. Accessed May 25.
- Gottlieb R, Joshi A. 2010. Food Justice. Cambridge, MA: The MIT Press. p. 304. https://mitpress.mit.edu/books/food-justice. Accessed October 21, 2017.
- Howitt RE, MacWan D, Medellin-Azuara J, Lund JR, Sumner DA. 2015. Economic analysis of the 2015 drought for California agriculture. Davis (CA): Center for Watershed Sciences, University of California–Davis; p. 16. https://watershed.ucdavis.edu/files/biblio/DroughtReport_23July2014_0.pdf
- Hui C. 2006. Carrying capacity, population equilibrium, and environment’s maximal load. Ecol Modell. 192(1-2):317–320. doi:10.1016/j.ecolmodel.2005.07.001.
- IPMA (Instituto Portugues Meteo A). 2017. MeteoGlobal. https://www.ipma.pt/en/ and http://meteoglobal.ipma.pt/relatos/nevoeiro-13. Accessed December 12.
- JPSS. 2017. JPSS-1 has new name: NOAA-20. November 21, http://www.jpss.noaa.gov/launch.html.
- Kogan FN. 1987. Vegetation Health index for areal analysis of NDVI in monitoring crop conditions. Preprint 18th Conference on Agricultural and Forest Meteorology AMS, Boston, 103–114.
- Kogan F. 1989. Remote sensing of weather impacts on vegetation in non-homogeneous areas. International Journal Remote Sensing, 11(8), 1405–1419.
- Kogan F, Guo W, Young W. 2017. SNPP/VIIRS vegetation health to assess 500 m California drought. Geomat Nat Haz Risk. 8(2), 1383–1395. doi:10.1080/19475705.2017.1337654.
- Kogan F, Salasar L, Roytman L. 2011. Forecasting crop production using satellite-based vegetation health indices in Kansas, USA. Int J Remote Sen. 33(9), 2798–2814. doi:10.1080/01431161.2011.621464.
- Kogan F, Adamenko T, Guo W. 2013. Global and regional drought dynamics in the climate warming era. Remote Sensing Letters 4:364–372. doi:10.1080/2150704X.2012.736033.
- Kogan F, Goldberg M, Schott T, Guo W. 2015. SUOMI NPP/VIIRS: improve drought watch, crop losses prediction and food security. International Journal Remote Sensing, doi: 10.1080/01431161.015.1095370.
- Kogan F, Popova Z, Alexandrov P. 2016. Early forecasting corn yield using field experiment dataset and Vegetation health indices in Pleven region, north Bulgaria. Ecologia i Industria 9(1):76–80.
- Kogan F. 2006. Early drought detection, monitoring and assessment of crop losses from space: Global approach. In: F. Kogan, S. Habib, M. Matsuoka, editors. Disaster forewarning diagnostic methods and management. SPIE Asia-Pacific Remote Sensing, Gao, India. pp. 91–95.
- Kogan FN. 2001. Operational space technology for global vegetation assessment. Bull Amer Meteor Soc. 82(9):1949–1964.
- Kogan FN. 1997. Global drought watch from space. Bull Amer Meteor Soc. 78(4):621–636.
- Kogan FN. 1995. Droughts of the late 1980s in the United States as derived from NOAA polar-orbiting satellite data. Bull Amer Meteor Soc. 76(5):655–667.
- LOM. 2017. Liebig’s Law of the Minimum. https://en.wikipedia.org/wiki/Liebig%27s_law_of_the_minimum.
- Masih I, Maskey S, Mussá FEF, Trambauer P. 2014. A review of droughts on African continent: a geospatial and long-term perspective. Hydrol Earth Syst Sci. 18(9):3635–3649. doi:10.5194/hess-18-3635-2014.
- Monteith JL. 1972. Solar radiation and productivity in tropical ecosystems. J Appl Ecol. 9(3):747–766.
- NCDC (National Climatic Data Center). 2011. Billion dollar U.S. weather disasters. Accessed October 21, 2017. http://www.ncdc.noaa.gov/oa/reports/billionz.html.
- NIDIS. 2017. Global drought information system. https://www.drought.gov/gdm/current-conditions.
- NOAA. 2017. U.S. billion-dollar weather & climate disasters 1980-2016. https://www.ncdc.noaa.gov/billions/. Accessed June 05.
- NOAA/NESDIS 2017. Vegetation health. https://www.star.nesdis.noaa.gov/smcd/emb/vci/VH/vh_browse.php. Accessed June 05.
- Saleous NE. 2005. An extended AVHRR 8-km NDVI data set compatible with MODIS and SPOT vegetation NDVI data. Int J Remote Sen. 26(20):4485–5598.
- Sasson A. 2012. Food security for Africa: an urgent global challenge. Agriculture Food Security. 1(2). https://doi.org/10.1186/2048-7010-1-2.
- Shelford VE. 1931. Some concepts of bioecology. Ecology. 12(3):455–467. doi:10.2307/1928991. ISSN 1939-9170.
- The Guardian. 2017. Extreme heat warnings issued in Europe as temperature pass 40C. https://www.theguardian.com/world/2017/aug/04/extreme-heat-warnings-issued-europe-temperatures-pass-40c. Date of publication: August 4, 2017.
- USDA. 2017. Food security. https://www.usda.gov/topics/food-and-nutrition/food-security. Accessed December 12.
- WB. 2017. Agriculture & Rural Development. https://data.worldbank.org/topic/agriculture-and-rural-development. Accessed April 18.
- USDA/FAS. 2017. Gain Report. Global Agricultural Information Network. SP1714, June.
- USDM (US Drought Monitor). 2017. https://www.drought.gov/drought/node/25. Accessed December 12.
- VH (Vegetation Health). 2018. VH Data and Products. https://www.star.nesdis.noaa.gov/smcd/emb/vci/VH/vh_browseByCountry.php. Accessed April 18.
- Vincent P. 2017. Portugal struggle with extreme drought. Terra Daily News. Madrid, Spain. http://www.terradaily.com/reports/Spain_Portugal_struggle_with_extreme_drought_999.html. Accessed November 28.
- WEF (World Economic Forum). 2017. What are the 10 biggest global challenges? https://www.weforum.org/agenda/2016/01/what-are-the-10-biggest-global-challenges/. Accessed December 12.
- Wilhite DA. 2000. Drought as a natural disaster. In: Donald W, editor. Drought. Routledge: Routledge Hazards and Disasters Series; p. 3–19.