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MDCW User Guide_v3-Oct2020
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Version No. 03 | OCT 2020

Mekong Drought and Crop Watch (MDCW)

Version 3.0

© 2020, SERVIR Mekong

User’s Guide

Contents:

1. Introduction

2. Overview of Web Portal

3. Access Drought Related Information

4. Access Crop Yield Related Information

 5. Feature Articles/Knowledge Center

6. Climate Studies

Click here to download the stepwise offline user guide

1. Introduction

In the context of decision-making, the Mekong Drought and Crop Watch (MDCW) helps to address the much needed drought preparedness, monitoring and forecasting as well as crop yield information for selected crops while assessing economic, social and environmental impacts in the Lower Mekong countries.

The MDCW deploys the Regional Hydrologic Extreme Assessment System (RHEAS) that is an integration of hydrological and crop simulation models developed by NASA-Jet Propulsion Laboratory. The core of the RHEAS framework is the Variable Infiltration Capacity (VIC) model and the Decision Support System for Agro-Technology Transfer (DSSAT) model that automates the deployment of nowcasting and forecasting hydrologic simulations and ingests satellite observations through data assimilation. It also allows coupling of other environmental models and facilitates the delivery of data products to users via a GIS enabled database. The system’s ability to carry our nowcast and forecast within the framework at the same time gives an upper edge to the present existing resources or systems available for drought and crop yield monitoring.

Production Supported by:

________________________________________________________________________

For more information on the technical details about the MDCW,

please access TECHNICAL DOCUMENTS link

 

Provide your feedback through FEEDBACK link

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2. Overview of Web Portal

Features

  1. drought related conditions across the Lower Mekong Region
  2. crop yield estimates across the Lower Mekong Region

General components of the user interface

Description of the components:

No

Component

Purpose

1

Drought

Provides the access and information on drought (every 8 day) conditions. This is the default selection too

2

Crop Yield*

Provides the access and information on crop yield estimations and related

3

Interactive Map

Provides the access to the interactive map

4

Create Report*

Can be used to create customized drought reports  

5

How to Use

Provides the user guide on how to use the interface

6

Current Conditions

Display current drought condition

7

Outlooks

Display 3 months drought outlook

8

Intensity/Warning Classification and Map Downloads

Map classification and downloads

9

Disclaimer

Product disclaimer

10

Intensity of Current Condition

Tables provides the details on the classification of current drought condition

11

Outlook Warning

Tables provides the details on the classification of outlook drought condition

12

Drought Summary

Details text drought summary in country scale

13

Interactive Map

Shortcut link for accessing the interactive map

14

Feature Articles/Knowledge Center

Provides featured news articles and important documents related to drought

15

Climate Studies*

Provides interactive map access to visualize drought related information generated from climate change projections

16

Contacts

Contact details

17

Menu Links

Provides access to ‘Technical Documents’, ‘Feedback’ and “How to Use’

18

Our Services

Provides access to main services

* Feature will be live soon

 

3. Access Drought Information

Front page provides a more comprehensive overall situation of the drought conditions in the both current and forecasted mode for the Lower Mekong Region. 

Current Condition:

19

Map Updated: YYYY-MM-DD

Denotes the map updated date

20

Current

Shows the latest available map

21

< 8D

Shows 8-day ago map

22

<16D

Shows 16-day ago map

23

< 24D

Shows 24-day ago map

24

Map View

Corresponding map as per the date selection is displayed here in Interactive view mode

25

Map classification

Map classifies according to intensity of the dry condition

26

Map download

Displaying map can be downloaded in GeoTIFF format. Users need to use map factor value (X 0.0001 (4 decimals))  to convert to the correct values.

Outlooks:

27

Map Updated: YYYY-MM-DD

Denotes the map updated date

28

1M

Shows 1-month outlook

29

2M

Shows 2-month outlook

30

3M

Shows 3-month outlook

31

Map View

Corresponding map as per the month selection is displayed here in Interactive view mode

32

Map classification

Map classifies according to intensity of the dry condition

33

Map download

2-month, 2-month and 3-month outlook map can be download in GeoTIFF format

Select Desired Area:

34

Select desired country

Move the mouse pointer over the map and it will automatically highlight the country. Then click on desired country

35/39

Selection step

This will show the selected step of the geography

Region > Country > Province/State

If you want to move back, click on previous step

36/40

Selected country

When you select any country or province/state either on ‘Current Conditions’ or ‘Outlooks’, the same selection would appear on both the maps simultaneously

37

Map controls

To zoom in zoom out the map view

38

Name of the selected area

This shows the area and country names of the selected area

Intensity of Current Conditions:

The table provides guidance information such as possible probability of occurrence, risk level and possible observable conditions and impacts on each drought category for the current conditions map.

Outlook Warning:

The table provides guidance information such as possible observable conditions and impacts on each warning category for the outlook map.

Access Interactive Map:

The interactive map can be accessed by clicking either on  or in the front page. This map allows users to visualize a number of satellite and model based drought and other indicators in an interactive way.  

41

Area

User can select desired area

  • Mekong Region (entire region)
  • LMR Basin (Mekong basin in the Lower Mekong Region)
  • Country Level
  • Administrative Level

Clear Area: This will clear current selection

42

Select Indicator

User can select desired satellite based (SB) and model based (MB) drought indicators and other required variables

43

Calendar

Can be used to select required date to visualize the map

  • Default map selection would be based on the latest available date
  • The variables which have forecasted information, the default map selection would be the farthest available forecasted date

44

Map View

Displays the map as per the selections

45

Map Controls

To zoom in and zoom out the map display

46

Compare Layers

This feature helps to compare any two different variables together for any date. Details are listed below

47

Download Raster

The current displaying map can be downloaded in GeoTIFF format. Users need to use respective map factor values to convert to the correct values for some drought indicators.  [Get map factors]

48

Legend

Click here to hide and unhide the map legend

49

Basemap

To switch the base map. Three map options are available

50

Opacity

This slider can be used to change the opacity of the map

51

Map Legend

Map legend helps to understand the different categories of the map

Compare Layers:

This selection window helps the user to load two different variables or the same variable for two different dates for comparing each other. Once required selections are done click on ‘Add Layers’ to open the comparable map window.

52

Slider

Move slider either to left or to right direction to compare the two maps

53

Legend and the selection

This shows the map legend and the selected variable name as well as the date

54

Compare Layers

Click here to exit the map comparison

Time Series Graph:

55

Select Indices

Select the required indicator for drawing the time series graph

56

Select Periodicity

Select the required period for drawing the time series graph

  • Default selection is ‘1 Year’
  • Last date can be selected from the calendar available in the main map view for drawing the graph. i.e. the graph would be drawn 1 year (or 3 months or 1 month) back from the selected date

57

Statistics

Shows the minimum, maximum and average values of the selected date

58

Chart Context Menu

Allows to print and download the graph as well as to download the data in .csv and .xls format

Comparison of Time Series Graphs:

Users can compare two time series graphs of two different variables for a selected period of time.

59

Select Indices

Select first variable for the comparison

60

Select Periodicity

Select periodicity for drawing the graph

61

Select Indices

Select second variable for the comparison

Read Some Important Information about Available Indicators:

This panel helps the users to get Important Information about Available Indicators such as introduction, spatial and temporal resolutions, values range, etc. Click on the dash line to change the indicator. 

Map Factors for Drought indicators:

Indicator

Map Factor

Value Range

Moisture Stress Index (MSI)

X 0.0001 (4 decimals)

0 to 3+

(Nodata: -9999)

Atmospherically Resistant Vegetation Index (ARVI)

X 0.0001 (4 decimals)

-1 to 1

(Nodata: -9999)

Visible and Shortwave infrared Drought Index (VSDI)

X 0.0001 (4 decimals)

0 to 2/3

(Nodata: -9999)

Soil Adjusted Vegetation Index (SAVI)

X 0.0001 (4 decimals)

-1 to 1

(Nodata: -9999)

Enhanced Vegetation Index (EVI)

X 0.0001 (4 decimals)

0 to 1

(Nodata: -9999)

Normalized Difference Vegetation Index (NDVI)

X 0.0001 (4 decimals)

-1 to 1

 (Nodata: -9999)

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4. Access Crop Yield Information

        

This feature will be provided below listed information (maps/data) in monitoring and forecasting modes. This feature will be live soon.

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5. Feature Articles/Knowledge Center

        

Users can access a number of featured articles on MDCW and its related services as well as knowledge products such as research articles, technical documents, guidance documents, etc. from the ‘Feature Articles/Knowledge Center’.

62

Feature Articles

Can be accessed the articles on MDCW and its related services

63

Knowledge Center

Can be accessed with knowledge products such as research articles, technical documents, guidance documents. etc.

64

Side Panel

Provides the shortcut links to each article and knowledge product

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6. Climate Studies

        

This is a feature to provide an interactive platform to display/visualize, evaluate, analyze climate change data. The intended audience is climate research scientists, meteorologists, hydrologists and anyone who needs to understand past and future (projected) climate patterns.

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