Although hydrological drought events vary greatly in spatial and temporal scale and can be driven by exogenous socioeconomic factors, can negative anomalies in inundated areas (e.g. wetlands, reservoirs, aqueducts) precede drought conditions? Maybe there is a trigger level that indicates a higher probability of a future drought? Have any studies been conducted that analyze the relationship between negative anomalies of inundation and initial and lagged drought conditions across spatial domains? Any discussion, thoughts, papers regarding this topic would be useful.
Many thanks!
Andrew
Remote sensing through satellite images allows for monitoring studies in the time of drought related phenomena (degradation of soil, vegetation, water ...). The images used for monitoring are those of the past and present, which allows to make predictions and scenarios for the future.
What paper do you recomend to read on that topic?
Carlos Olguín-Palacios
I would suggest to use satellite-derived soil moisture images for drought monitoring and forecasting.
For a list of the products currently available (freely) see this previous question on RG: https://www.researchgate.net/post/What_is_the_best_satellite_soil_moisture_product_for_land_surface_modelling
and I suggest this interesting paper: http://afrsweb.usda.gov/sp2UserFiles/person/30797/pdf/Bolten.JSTARS.pdf
Hi Luca,
Thanks for the answer and links. Very useful!
I may have worded my question poorly, but I have already looked into the relationship between soil moisture and drought. At the International Research Institute for Climate and Society we have even been working on a function in our Data Library that would allow for simple water balance calculations by using the previous day's soil moisture and the current day's effective rainfall. We are still working on it but it may be of interest to you and you can check it out at the link here.
http://iridl.ldeo.columbia.edu/dochelp/Documentation/details/index.html?func=:Water_Balance
Again, I apologize if my question was worded poorly, but I am trying to see if there is a relationship between inundation, specifically the anomalous (positive or more likely in the case of drought, negative) presence of water bodies, and drought. Soil moisture may play a role in determining the presence of water bodies and inundation, but it is not specifically what I am looking for at this time.
Thanks again for your contribution!
Andrew
http://iridl.ldeo.columbia.edu/dochelp/Documentation/details/index.html?func=:Water_Balance
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